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Introduction
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FAQ
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nats.io
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What is NATS
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Subject-Based Messaging
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Publish-Subscribe
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Request-Reply
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</a>
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Queue Groups
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Acknowledgements
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Sequence Numbers
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</a>
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<li class="header">Developing With NATS</li>
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Introduction
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Connecting
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Connecting to the Default Server
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</a>
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Connecting to a Specific Server
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</a>
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<a href="../developer/connecting/cluster.html">
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Connecting to a Cluster
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</a>
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<a href="../developer/connecting/connect_timeout.html">
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Setting a Connect Timeout
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</a>
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<li class="chapter " data-level="3.2.5" data-path="../developer/connecting/pingpong.html">
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Ping/Pong Protocol
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</a>
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<a href="../developer/connecting/protocol.html">
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Controlling the Client/Server Protocol
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</a>
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</li>
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<a href="../developer/connecting/noecho.html">
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Turning Off Echo'd Messages
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</a>
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</li>
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</ul>
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<li class="chapter " data-level="3.3" data-path="../developer/reconnect/intro.html">
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<a href="../developer/reconnect/intro.html">
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Automatic Reconnections
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.3.1" data-path="../developer/reconnect/disable.html">
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<a href="../developer/reconnect/disable.html">
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Disabling Reconnect
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</a>
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</li>
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<li class="chapter " data-level="3.3.2" data-path="../developer/reconnect/max.html">
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<a href="../developer/reconnect/max.html">
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Set the Number of Reconnect Attempts
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</a>
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</li>
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<li class="chapter " data-level="3.3.3" data-path="../developer/reconnect/wait.html">
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<a href="../developer/reconnect/wait.html">
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Pausing Between Reconnect Attempts
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</a>
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</li>
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<li class="chapter " data-level="3.3.4" data-path="../developer/reconnect/random.html">
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<a href="../developer/reconnect/random.html">
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Avoiding the Thundering Herd
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</a>
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</li>
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<li class="chapter " data-level="3.3.5" data-path="../developer/reconnect/events.html">
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<a href="../developer/reconnect/events.html">
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Listening for Reconnect Events
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</a>
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</li>
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<li class="chapter " data-level="3.3.6" data-path="../developer/reconnect/buffer.html">
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<a href="../developer/reconnect/buffer.html">
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Buffering Messages During Reconnect Attempts
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.4" data-path="../developer/security/intro.html">
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<a href="../developer/security/intro.html">
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Securing Connections
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.4.1" data-path="../developer/security/userpass.html">
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<a href="../developer/security/userpass.html">
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Authenticating with a User and Password
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</a>
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</li>
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<li class="chapter " data-level="3.4.2" data-path="../developer/security/token.html">
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<a href="../developer/security/token.html">
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Authenticating with a Token
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</a>
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</li>
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<li class="chapter " data-level="3.4.3" data-path="../developer/security/nkey.html">
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<a href="../developer/security/nkey.html">
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Authenticating with an NKey
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</a>
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</li>
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<li class="chapter " data-level="3.4.4" data-path="../developer/security/creds.html">
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<a href="../developer/security/creds.html">
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Authenticating with a Credentials File
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</a>
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</li>
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<li class="chapter " data-level="3.4.5" data-path="../developer/security/tls.html">
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<a href="../developer/security/tls.html">
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Encrypting Connections with TLS
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.5" data-path="../developer/receiving/intro.html">
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<a href="../developer/receiving/intro.html">
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Receiving Messages
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.5.1" data-path="../developer/receiving/sync.html">
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<a href="../developer/receiving/sync.html">
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Synchronous Subscriptions
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</a>
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</li>
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<li class="chapter " data-level="3.5.2" data-path="../developer/receiving/async.html">
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<a href="../developer/receiving/async.html">
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Asynchronous Subscriptions
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</a>
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</li>
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<li class="chapter " data-level="3.5.3" data-path="../developer/receiving/unsubscribing.html">
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<a href="../developer/receiving/unsubscribing.html">
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Unsubscribing
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</a>
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</li>
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<li class="chapter " data-level="3.5.4" data-path="../developer/receiving/unsub_after.html">
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<a href="../developer/receiving/unsub_after.html">
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Unsubscribing After N Messages
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</a>
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</li>
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<li class="chapter " data-level="3.5.5" data-path="../developer/receiving/reply.html">
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<a href="../developer/receiving/reply.html">
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Replying to a Message
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</a>
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</li>
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<li class="chapter " data-level="3.5.6" data-path="../developer/receiving/wildcards.html">
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<a href="../developer/receiving/wildcards.html">
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Wildcard Subscriptions
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</a>
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</li>
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<li class="chapter " data-level="3.5.7" data-path="../developer/receiving/queues.html">
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<a href="../developer/receiving/queues.html">
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Queue Subscriptions
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</a>
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</li>
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<li class="chapter " data-level="3.5.8" data-path="../developer/receiving/drain.html">
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<a href="../developer/receiving/drain.html">
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Draining Messages Before Disconnect
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</a>
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</li>
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<li class="chapter " data-level="3.5.9" data-path="../developer/receiving/structure.html">
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<a href="../developer/receiving/structure.html">
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Structured Data
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.6" data-path="../developer/sending/intro.html">
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<a href="../developer/sending/intro.html">
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Sending Messages
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.6.1" data-path="../developer/sending/replyto.html">
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<a href="../developer/sending/replyto.html">
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Including a Reply Subject
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</a>
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</li>
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<li class="chapter " data-level="3.6.2" data-path="../developer/sending/request_reply.html">
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<a href="../developer/sending/request_reply.html">
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Request-Reply Semantics
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</a>
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</li>
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<li class="chapter " data-level="3.6.3" data-path="../developer/sending/caches.html">
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<a href="../developer/sending/caches.html">
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Caches, Flush and Ping
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</a>
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</li>
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<li class="chapter " data-level="3.6.4" data-path="../developer/sending/structure.html">
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<a href="../developer/sending/structure.html">
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Sending Structured Data
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.7" data-path="../developer/events/intro.html">
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<a href="../developer/events/intro.html">
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Monitoring the Connection
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.7.1" data-path="../developer/events/events.html">
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<a href="../developer/events/events.html">
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Listen for Connection Events
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</a>
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</li>
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<li class="chapter " data-level="3.7.2" data-path="../developer/events/slow.html">
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<a href="../developer/events/slow.html">
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Slow Consumers
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3.8" data-path="../developer/tutorials/intro.html">
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<a href="../developer/tutorials/intro.html">
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Tutorials
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.8.1" data-path="../developer/tutorials/pubsub.html">
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<a href="../developer/tutorials/pubsub.html">
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Explore NATS Pub/Sub
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</a>
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</li>
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<li class="chapter " data-level="3.8.2" data-path="../developer/tutorials/reqreply.html">
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<a href="../developer/tutorials/reqreply.html">
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Explore NATS Request/Reply
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</a>
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</li>
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|
<li class="chapter " data-level="3.8.3" data-path="../developer/tutorials/queues.html">
|
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<a href="../developer/tutorials/queues.html">
|
|
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|
|
Explore NATS Queueing
|
|
|
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</a>
|
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</li>
|
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|
<li class="chapter " data-level="3.8.4" data-path="../developer/tutorials/custom_dialer.html">
|
|
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|
<a href="../developer/tutorials/custom_dialer.html">
|
|
|
|
|
|
Advanced Connect and Custom Dialer in Go
|
|
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</a>
|
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</li>
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</ul>
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</li>
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<li class="header">NATS Server</li>
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|
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|
|
|
|
<li class="chapter " data-level="4.1" data-path="installation.html">
|
|
|
|
<a href="installation.html">
|
|
|
|
|
|
Installing
|
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</a>
|
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|
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</li>
|
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<li class="chapter " data-level="4.2" data-path="running.html">
|
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|
<a href="running.html">
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|
Running
|
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</a>
|
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|
<ul class="articles">
|
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|
|
<li class="chapter " data-level="4.2.1" data-path="windows_srv.html">
|
|
|
|
<a href="windows_srv.html">
|
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|
|
Window Service
|
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</a>
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</li>
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</ul>
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</li>
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|
<li class="chapter " data-level="4.3" data-path="clients.html">
|
|
|
|
<a href="clients.html">
|
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|
|
|
|
Clients
|
|
|
|
</a>
|
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</li>
|
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|
<li class="chapter active" data-level="4.4" data-path="flags.html">
|
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|
|
<a href="flags.html">
|
|
|
|
|
|
Flags
|
|
|
|
</a>
|
|
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|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5" data-path="configuration.html">
|
|
|
|
<a href="configuration.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
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|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.5.1" data-path="securing_nats.html">
|
|
|
|
<a href="securing_nats.html">
|
|
|
|
|
|
Securing NATS
|
|
|
|
</a>
|
|
|
|
|
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|
<ul class="articles">
|
|
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|
|
|
<li class="chapter " data-level="4.5.1.1" data-path="tls.html">
|
|
|
|
<a href="tls.html">
|
|
|
|
|
|
Enabling TLS
|
|
|
|
</a>
|
|
|
|
|
|
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|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2" data-path="auth_intro.html">
|
|
|
|
<a href="auth_intro.html">
|
|
|
|
|
|
Authentication
|
|
|
|
</a>
|
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|
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|
<ul class="articles">
|
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|
|
|
|
<li class="chapter " data-level="4.5.1.2.1" data-path="tokens.html">
|
|
|
|
<a href="tokens.html">
|
|
|
|
|
|
Tokens
|
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|
</a>
|
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|
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</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2.2" data-path="username_password.html">
|
|
|
|
<a href="username_password.html">
|
|
|
|
|
|
Username/Password
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2.3" data-path="tls_mutual_auth.html">
|
|
|
|
<a href="tls_mutual_auth.html">
|
|
|
|
|
|
TLS Authentication
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2.4" data-path="nkey_auth.html">
|
|
|
|
<a href="nkey_auth.html">
|
|
|
|
|
|
NKeys
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2.5" data-path="accounts.html">
|
|
|
|
<a href="accounts.html">
|
|
|
|
|
|
Accounts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2.6" data-path="jwt_auth.html">
|
|
|
|
<a href="jwt_auth.html">
|
|
|
|
|
|
JWTs
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.2.7" data-path="auth_timeout.html">
|
|
|
|
<a href="auth_timeout.html">
|
|
|
|
|
|
Authentication Timeout
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.1.3" data-path="authorization.html">
|
|
|
|
<a href="authorization.html">
|
|
|
|
|
|
Authorization
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.2" data-path="clustering.html">
|
|
|
|
<a href="clustering.html">
|
|
|
|
|
|
Clustering
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.5.2.1" data-path="cluster_config.html">
|
|
|
|
<a href="cluster_config.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.2.2" data-path="cluster_tls.html">
|
|
|
|
<a href="cluster_tls.html">
|
|
|
|
|
|
TLS Authentication
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.3" data-path="../gateways/">
|
|
|
|
<a href="../gateways/">
|
|
|
|
|
|
Gateways
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.5.3.1" data-path="../gateways/gateway.html">
|
|
|
|
<a href="../gateways/gateway.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.4" data-path="../leafnodes/">
|
|
|
|
<a href="../leafnodes/">
|
|
|
|
|
|
Leaf Nodes
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.5.4.1" data-path="../leafnodes/leafnode_conf.html">
|
|
|
|
<a href="../leafnodes/leafnode_conf.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.5" data-path="logging.html">
|
|
|
|
<a href="logging.html">
|
|
|
|
|
|
Logging
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.5.6" data-path="monitoring.html">
|
|
|
|
<a href="monitoring.html">
|
|
|
|
|
|
Monitoring
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.6" data-path="../nats_admin/">
|
|
|
|
<a href="../nats_admin/">
|
|
|
|
|
|
Managing A NATS Server
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.6.1" data-path="../nats_admin/upgrading_cluster.html">
|
|
|
|
<a href="../nats_admin/upgrading_cluster.html">
|
|
|
|
|
|
Upgrading a Cluster
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.6.2" data-path="../nats_admin/slow_consumers.html">
|
|
|
|
<a href="../nats_admin/slow_consumers.html">
|
|
|
|
|
|
Slow Consumers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.6.3" data-path="../nats_admin/signals.html">
|
|
|
|
<a href="../nats_admin/signals.html">
|
|
|
|
|
|
Signals
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.6.4" data-path="../sys_accounts/">
|
|
|
|
<a href="../sys_accounts/">
|
|
|
|
|
|
System Accounts
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.6.4.1" data-path="../sys_accounts/sys_accounts.html">
|
|
|
|
<a href="../sys_accounts/sys_accounts.html">
|
|
|
|
|
|
Configuration
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.7" data-path="../nats_docker/">
|
|
|
|
<a href="../nats_docker/">
|
|
|
|
|
|
NATS and Docker
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.7.1" data-path="../nats_docker/nats-docker-tutorial.html">
|
|
|
|
<a href="../nats_docker/nats-docker-tutorial.html">
|
|
|
|
|
|
Tutorial
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.7.2" data-path="../nats_docker/docker_swarm.html">
|
|
|
|
<a href="../nats_docker/docker_swarm.html">
|
|
|
|
|
|
Docker Swarm
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">NATS Tools</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="5.1" data-path="../nats_tools/mkpasswd.html">
|
|
|
|
<a href="../nats_tools/mkpasswd.html">
|
|
|
|
|
|
mkpasswd
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.2" data-path="../nats_tools/nk.html">
|
|
|
|
<a href="../nats_tools/nk.html">
|
|
|
|
|
|
nk
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3" data-path="../nats_tools/nsc/">
|
|
|
|
<a href="../nats_tools/nsc/">
|
|
|
|
|
|
nsc
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.3.1" data-path="../nats_tools/nsc/nsc.html">
|
|
|
|
<a href="../nats_tools/nsc/nsc.html">
|
|
|
|
|
|
Basics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.2" data-path="../nats_tools/nsc/streams.html">
|
|
|
|
<a href="../nats_tools/nsc/streams.html">
|
|
|
|
|
|
Streams
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.3" data-path="../nats_tools/nsc/services.html">
|
|
|
|
<a href="../nats_tools/nsc/services.html">
|
|
|
|
|
|
Services
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.4" data-path="../nats_tools/nsc/signing_keys.html">
|
|
|
|
<a href="../nats_tools/nsc/signing_keys.html">
|
|
|
|
|
|
Signing Keys
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.5" data-path="../nats_tools/nsc/revocation.html">
|
|
|
|
<a href="../nats_tools/nsc/revocation.html">
|
|
|
|
|
|
Revocation
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.3.6" data-path="../nats_tools/nsc/managed.html">
|
|
|
|
<a href="../nats_tools/nsc/managed.html">
|
|
|
|
|
|
Managed Operators
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.4" data-path="../nats_tools/nas/">
|
|
|
|
<a href="../nats_tools/nas/">
|
|
|
|
|
|
nats-account-server
|
|
|
|
</a>
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<ul class="articles">
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<li class="chapter " data-level="5.4.1" data-path="../nats_tools/nas/nas_conf.html">
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<a href="../nats_tools/nas/nas_conf.html">
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Basics
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</a>
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</li>
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<li class="chapter " data-level="5.4.2" data-path="../nats_tools/nas/inspecting_jwts.html">
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<a href="../nats_tools/nas/inspecting_jwts.html">
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Inspecting JWTs
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</a>
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</li>
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<li class="chapter " data-level="5.4.3" data-path="../nats_tools/nas/dir_store.html">
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<a href="../nats_tools/nas/dir_store.html">
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Directory Store
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</a>
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</li>
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<li class="chapter " data-level="5.4.4" data-path="../nats_tools/nas/notifications.html">
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<a href="../nats_tools/nas/notifications.html">
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Update Notifications
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</a>
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</li>
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<li class="chapter " data-level="5.4.5" data-path="../nats_tools/nas/mem_resolver.html">
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<a href="../nats_tools/nas/mem_resolver.html">
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Memory Resolver
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="5.5" data-path="../nats_tools/nats_top/">
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<a href="../nats_tools/nats_top/">
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nats-top
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</a>
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<ul class="articles">
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<li class="chapter " data-level="5.5.1" data-path="../nats_tools/nats_top/nats-top-tutorial.html">
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<a href="../nats_tools/nats_top/nats-top-tutorial.html">
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Tutorial
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="5.6" data-path="../nats_tools/natsbench.html">
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<a href="../nats_tools/natsbench.html">
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nats-bench
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</a>
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</li>
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<li class="header">NATS Streaming Concepts</li>
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<li class="chapter " data-level="6.1" data-path="../nats_streaming/intro.html">
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<a href="../nats_streaming/intro.html">
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Introduction
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</a>
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</li>
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<li class="chapter " data-level="6.2" data-path="../nats_streaming/relation-to-nats.html">
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<a href="../nats_streaming/relation-to-nats.html">
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Relation to NATS
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</a>
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</li>
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<li class="chapter " data-level="6.3" data-path="../nats_streaming/client-connections.html">
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<a href="../nats_streaming/client-connections.html">
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Client Connections
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</a>
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</li>
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<li class="chapter " data-level="6.4" data-path="../nats_streaming/channels/channels.html">
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<a href="../nats_streaming/channels/channels.html">
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Channels
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</a>
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<ul class="articles">
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<li class="chapter " data-level="6.4.1" data-path="../nats_streaming/channels/message-log.html">
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<a href="../nats_streaming/channels/message-log.html">
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Message Log
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</a>
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</li>
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<li class="chapter " data-level="6.4.2" data-path="../nats_streaming/channels/subscriptions/subscriptions.html">
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<a href="../nats_streaming/channels/subscriptions/subscriptions.html">
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Subscriptions
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</a>
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<ul class="articles">
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<li class="chapter " data-level="6.4.2.1" data-path="../nats_streaming/channels/subscriptions/regular.html">
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<a href="../nats_streaming/channels/subscriptions/regular.html">
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Regular
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</a>
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</li>
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<li class="chapter " data-level="6.4.2.2" data-path="../nats_streaming/channels/subscriptions/durable.html">
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<a href="../nats_streaming/channels/subscriptions/durable.html">
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Durable
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</a>
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</li>
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<li class="chapter " data-level="6.4.2.3" data-path="../nats_streaming/channels/subscriptions/queue-group.html">
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<a href="../nats_streaming/channels/subscriptions/queue-group.html">
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Queue Group
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</a>
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</li>
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<li class="chapter " data-level="6.4.2.4" data-path="../nats_streaming/channels/subscriptions/redelivery.html">
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<a href="../nats_streaming/channels/subscriptions/redelivery.html">
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Redelivery
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</a>
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</li>
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</ul>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="6.5" data-path="../nats_streaming/store-interface.html">
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<a href="../nats_streaming/store-interface.html">
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Store Interface
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</a>
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</li>
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<li class="chapter " data-level="6.6" data-path="../nats_streaming/store-encryption.html">
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<a href="../nats_streaming/store-encryption.html">
|
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Store Encryption
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</a>
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</li>
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<li class="chapter " data-level="6.7" data-path="../nats_streaming/clustering/clustering.html">
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<a href="../nats_streaming/clustering/clustering.html">
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Clustering
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</a>
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<ul class="articles">
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<li class="chapter " data-level="6.7.1" data-path="../nats_streaming/clustering/supported-stores.html">
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<a href="../nats_streaming/clustering/supported-stores.html">
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Supported Stores
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</a>
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</li>
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<li class="chapter " data-level="6.7.2" data-path="../nats_streaming/clustering/configuration.html">
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<a href="../nats_streaming/clustering/configuration.html">
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Configuration
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</a>
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</li>
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<li class="chapter " data-level="6.7.3" data-path="../nats_streaming/clustering/auto-configuration.html">
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<a href="../nats_streaming/clustering/auto-configuration.html">
|
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Auto Configuration
|
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</a>
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</li>
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<li class="chapter " data-level="6.7.4" data-path="../nats_streaming/clustering/containers.html">
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<a href="../nats_streaming/clustering/containers.html">
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Containers
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="6.8" data-path="../nats_streaming/fault-tolerance/ft.html">
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|
<a href="../nats_streaming/fault-tolerance/ft.html">
|
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Fault Tolerance
|
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</a>
|
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<ul class="articles">
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<li class="chapter " data-level="6.8.1" data-path="../nats_streaming/fault-tolerance/active-server.html">
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|
<a href="../nats_streaming/fault-tolerance/active-server.html">
|
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Active Server
|
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</a>
|
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</li>
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<li class="chapter " data-level="6.8.2" data-path="../nats_streaming/fault-tolerance/standby-server.html">
|
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|
<a href="../nats_streaming/fault-tolerance/standby-server.html">
|
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Standby Servers
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</a>
|
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</li>
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<li class="chapter " data-level="6.8.3" data-path="../nats_streaming/fault-tolerance/shared-state.html">
|
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<a href="../nats_streaming/fault-tolerance/shared-state.html">
|
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Shared State
|
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</a>
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</li>
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<li class="chapter " data-level="6.8.4" data-path="../nats_streaming/fault-tolerance/failover.html">
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|
<a href="../nats_streaming/fault-tolerance/failover.html">
|
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|
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Failover
|
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</a>
|
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="6.9" data-path="../nats_streaming/partitioning.html">
|
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|
<a href="../nats_streaming/partitioning.html">
|
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|
Partitioning
|
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</a>
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</li>
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<li class="chapter " data-level="6.10" data-path="../nats_streaming/monitoring/monitoring.html">
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<a href="../nats_streaming/monitoring/monitoring.html">
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Monitoring
|
|
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</a>
|
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<ul class="articles">
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<li class="chapter " data-level="6.10.1" data-path="../nats_streaming/monitoring/endpoints.html">
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<a href="../nats_streaming/monitoring/endpoints.html">
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Endpoints
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</a>
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</li>
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</ul>
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</li>
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<li class="header">Developing With NATS Streaming</li>
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<li class="chapter " data-level="7.1" data-path="../developer/streaming/">
|
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<a href="../developer/streaming/">
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Introduction
|
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</a>
|
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</li>
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<li class="chapter " data-level="7.2" data-path="../developer/streaming/connecting.html">
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<a href="../developer/streaming/connecting.html">
|
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Connecting to NATS Streaming
|
|
|
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</a>
|
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</li>
|
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|
<li class="chapter " data-level="7.3" data-path="../developer/streaming/publishing.html">
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<a href="../developer/streaming/publishing.html">
|
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Publishing to a Channel
|
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</a>
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</li>
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<li class="chapter " data-level="7.4" data-path="../developer/streaming/receiving.html">
|
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<a href="../developer/streaming/receiving.html">
|
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Receiving Messages from a Channel
|
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</a>
|
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</li>
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|
<li class="chapter " data-level="7.5" data-path="../developer/streaming/durables.html">
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<a href="../developer/streaming/durables.html">
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|
|
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Durable Subscriptions
|
|
|
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</a>
|
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</li>
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|
<li class="chapter " data-level="7.6" data-path="../developer/streaming/queues.html">
|
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|
|
<a href="../developer/streaming/queues.html">
|
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|
|
|
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Queue Subscriptions
|
|
|
|
</a>
|
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</li>
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|
<li class="chapter " data-level="7.7" data-path="../developer/streaming/acks.html">
|
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<a href="../developer/streaming/acks.html">
|
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|
|
|
Acknowledgements
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|
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</a>
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</li>
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<li class="chapter " data-level="7.8" data-path="../developer/streaming/protocol.html">
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<a href="../developer/streaming/protocol.html">
|
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|
|
|
|
The Streaming Protocol
|
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</a>
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</li>
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<li class="header">NATS Streaming Server</li>
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<li class="chapter " data-level="8.1" data-path="../nats_streaming/gettingstarted/changes.html">
|
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|
|
<a href="../nats_streaming/gettingstarted/changes.html">
|
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|
|
|
|
Important Changes
|
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|
|
</a>
|
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</li>
|
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|
|
<li class="chapter " data-level="8.2" data-path="../nats_streaming/gettingstarted/install.html">
|
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<a href="../nats_streaming/gettingstarted/install.html">
|
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|
|
|
|
Installing
|
|
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</a>
|
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</li>
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|
<li class="chapter " data-level="8.3" data-path="../nats_streaming/gettingstarted/run.html">
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<a href="../nats_streaming/gettingstarted/run.html">
|
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Running
|
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</a>
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</li>
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<li class="chapter " data-level="8.4" data-path="../nats_streaming/configuring/configuring.html">
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<a href="../nats_streaming/configuring/configuring.html">
|
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|
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|
|
Configuring
|
|
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</a>
|
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<ul class="articles">
|
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<li class="chapter " data-level="8.4.1" data-path="../nats_streaming/configuring/cmdline.html">
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|
<a href="../nats_streaming/configuring/cmdline.html">
|
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|
|
|
|
Command line arguments
|
|
|
|
</a>
|
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</li>
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|
<li class="chapter " data-level="8.4.2" data-path="../nats_streaming/configuring/cfgfile.html">
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<a href="../nats_streaming/configuring/cfgfile.html">
|
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Configuration file
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|
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</a>
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</li>
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<li class="chapter " data-level="8.4.3" data-path="../nats_streaming/configuring/storelimits.html">
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<a href="../nats_streaming/configuring/storelimits.html">
|
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Store Limits
|
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</a>
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<ul class="articles">
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<li class="chapter " data-level="8.4.3.1" data-path="../nats_streaming/configuring/storelimits.html">
|
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|
|
<a href="../nats_streaming/configuring/storelimits.html#limits-inheritance">
|
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Limits inheritance
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="8.4.4" data-path="../nats_streaming/configuring/persistence.html">
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<a href="../nats_streaming/configuring/persistence.html">
|
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Persistence
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</a>
|
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<ul class="articles">
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<li class="chapter " data-level="8.4.4.1" data-path="../nats_streaming/configuring/filestore.html">
|
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|
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<a href="../nats_streaming/configuring/filestore.html">
|
|
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File Store
|
|
|
|
</a>
|
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|
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<ul class="articles">
|
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<li class="chapter " data-level="8.4.4.1.1" data-path="../nats_streaming/configuring/filestore.html">
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<a href="../nats_streaming/configuring/filestore.html#options">
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Options
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</a>
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<li class="chapter " data-level="8.4.4.1.2" data-path="../nats_streaming/configuring/filestore.html">
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<a href="../nats_streaming/configuring/filestore.html#recovery-errors">
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Recovery Errors
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</a>
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</li>
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</ul>
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<li class="chapter " data-level="8.4.4.2" data-path="../nats_streaming/configuring/sqlstore.html">
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<a href="../nats_streaming/configuring/sqlstore.html">
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SQL Store
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</a>
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<ul class="articles">
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<li class="chapter " data-level="8.4.4.2.1" data-path="../nats_streaming/configuring/sqlstore.html">
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<a href="../nats_streaming/configuring/sqlstore.html#read-and-write-timeouts">
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Read and Write Timeouts
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</a>
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</li>
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<li class="chapter " data-level="8.4.4.2.2" data-path="../nats_streaming/configuring/sqlstore.html">
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<a href="../nats_streaming/configuring/sqlstore.html#options">
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Options
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</a>
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<li class="chapter " data-level="8.4.5" data-path="../nats_streaming/configuring/tls.html">
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<a href="../nats_streaming/configuring/tls.html">
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Securing
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</a>
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<ul class="articles">
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<li class="chapter " data-level="8.4.5.1" data-path="../nats_streaming/configuring/tls.html">
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<a href="../nats_streaming/configuring/tls.html#authenticating-users">
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Authenticating Users
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</a>
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<li class="chapter " data-level="8.4.5.2" data-path="../nats_streaming/configuring/tls.html">
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<a href="../nats_streaming/configuring/tls.html#using-tls">
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TLS
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</a>
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</li>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="8.5" data-path="../nats_streaming/gettingstarted/process-signaling.html">
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<a href="../nats_streaming/gettingstarted/process-signaling.html">
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Process Signaling
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</a>
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</li>
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<li class="chapter " data-level="8.6" data-path="../nats_streaming/gettingstarted/windows-service.html">
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<a href="../nats_streaming/gettingstarted/windows-service.html">
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Windows Service
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</a>
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<li class="chapter " data-level="8.7" data-path="../developer/streaming/embedding.html">
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<a href="../developer/streaming/embedding.html">
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Embedding NATS Streaming Server
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</a>
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<li class="chapter " data-level="8.8" data-path="../nats_streaming/swarm.html">
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<a href="../nats_streaming/swarm.html">
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Docker Swarm
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</a>
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<li class="header">NATS Protocol</li>
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<li class="chapter " data-level="9.1" data-path="../nats_protocol/nats-protocol-demo.html">
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<a href="../nats_protocol/nats-protocol-demo.html">
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Protocol Demo
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</a>
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<li class="chapter " data-level="9.2" data-path="../nats_protocol/nats-protocol.html">
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<a href="../nats_protocol/nats-protocol.html">
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Client Protocol
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</a>
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<ul class="articles">
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<li class="chapter " data-level="9.2.1" data-path="../nats_protocol/nats-client-dev.html">
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<a href="../nats_protocol/nats-client-dev.html">
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Developing a Client
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="9.3" data-path="../nats_protocol/nats-server-protocol.html">
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<a href="../nats_protocol/nats-server-protocol.html">
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NATS Cluster Protocol
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</a>
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</li>
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<li class="divider"></li>
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<li>
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<a href="https://www.gitbook.com" target="blank" class="gitbook-link">
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Published with GitBook
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</a>
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</ul>
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</nav>
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<div class="book-body">
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<div class="body-inner">
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<div class="book-header" role="navigation">
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<!-- Title -->
|
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<h1>
|
|
<i class="fa fa-circle-o-notch fa-spin"></i>
|
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<a href=".." >Flags</a>
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</h1>
|
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</div>
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<div class="page-wrapper" tabindex="-1" role="main">
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<div class="page-inner">
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<div id="book-search-results">
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<div class="search-noresults">
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<section class="normal markdown-section">
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|
|
<h1 id="flags"><a name="flags" class="plugin-anchor" href="#flags"><i class="fa fa-link" aria-hidden="true"></i></a>Flags</h1>
|
|
<p>The NATS server has many flags to customize its behavior without having to write a configuration file.</p>
|
|
<p>The configuration flags revolve around:</p>
|
|
<ul>
|
|
<li>Server Options</li>
|
|
<li>Logging</li>
|
|
<li>Authorization</li>
|
|
<li>TLS Security</li>
|
|
<li>Clustering</li>
|
|
<li>Information</li>
|
|
</ul>
|
|
<h3 id="server-options"><a name="server-options" class="plugin-anchor" href="#server-options"><i class="fa fa-link" aria-hidden="true"></i></a>Server Options</h3>
|
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<table>
|
|
<thead>
|
|
<tr>
|
|
<th style="text-align:left">Flag</th>
|
|
<th style="text-align:left">Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
<tr>
|
|
<td style="text-align:left"><code>-a</code>, <code>--addr</code></td>
|
|
<td style="text-align:left">Host address to bind to (default: <code>0.0.0.0</code> - all interfaces).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-p</code>, <code>--port</code></td>
|
|
<td style="text-align:left">NATS client port (default: 4222).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-P</code>, <code>--pid</code></td>
|
|
<td style="text-align:left">File to store the process ID (PID).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-m</code>, <code>--http_port</code></td>
|
|
<td style="text-align:left">HTTP port for monitoring dashboard (exclusive of <code>--https_port</code>).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-ms</code>, <code>--https_port</code></td>
|
|
<td style="text-align:left">HTTPS port monitoring for monitoring dashboard (exclusive of <code>--http_port</code>).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-c</code>, <code>--config</code></td>
|
|
<td style="text-align:left">Path to NATS server configuration file.</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-sl</code>, <code>--signal</code></td>
|
|
<td style="text-align:left">Send a signal to nats-server process. See <a href="../nats_admin/signals.html">process signaling</a>.</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--client_advertise</code></td>
|
|
<td style="text-align:left">Client HostPort to advertise to other servers.</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-t</code></td>
|
|
<td style="text-align:left">Test configuration and exit</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<h3 id="authentication-options"><a name="authentication-options" class="plugin-anchor" href="#authentication-options"><i class="fa fa-link" aria-hidden="true"></i></a>Authentication Options</h3>
|
|
<p>The following options control straightforward authentication:</p>
|
|
<table>
|
|
<thead>
|
|
<tr>
|
|
<th style="text-align:left">Flag</th>
|
|
<th style="text-align:left">Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
<tr>
|
|
<td style="text-align:left"><code>--user</code></td>
|
|
<td style="text-align:left">Required <em>username</em> for connections (exclusive of <code>--token</code>).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--pass</code></td>
|
|
<td style="text-align:left">Required <em>password</em> for connections (exclusive of <code>--token</code>).</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--auth</code></td>
|
|
<td style="text-align:left">Required <em>authorization token</em> for connections (exclusive of <code>--user</code> and <code>--password</code>).</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>See <a href="tokens.html">token authentication</a>, and <a href="username_password.html">username/password</a> for more information.</p>
|
|
<h3 id="logging-options"><a name="logging-options" class="plugin-anchor" href="#logging-options"><i class="fa fa-link" aria-hidden="true"></i></a>Logging Options</h3>
|
|
<p>The following flags are available on the server to configure logging:</p>
|
|
<table>
|
|
<thead>
|
|
<tr>
|
|
<th style="text-align:left">Flag</th>
|
|
<th style="text-align:left">Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
<tr>
|
|
<td style="text-align:left"><code>-l</code>, <code>--log</code></td>
|
|
<td style="text-align:left">File to redirect log output</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-T</code>, <code>--logtime</code></td>
|
|
<td style="text-align:left">Specify <code>-T=false</code> to disable timestamping log entries</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-s</code>, <code>--syslog</code></td>
|
|
<td style="text-align:left">Log to syslog or windows event log</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-r</code>, <code>--remote_syslog</code></td>
|
|
<td style="text-align:left">The syslog server address, like <code>udp://localhost:514</code></td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-D</code>, <code>--debug</code></td>
|
|
<td style="text-align:left">Enable debugging output</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-V</code>, <code>--trace</code></td>
|
|
<td style="text-align:left">Enable protocol trace log messages</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-DV</code></td>
|
|
<td style="text-align:left">Enable both debug and protocol trace messages</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--max_traced_msg_len</code></td>
|
|
<td style="text-align:left">Maximum printable length for traced messages. 0 for unlimited</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>You can read more about <a href="logging.html">logging configuration here</a>.</p>
|
|
<h3 id="tls-options"><a name="tls-options" class="plugin-anchor" href="#tls-options"><i class="fa fa-link" aria-hidden="true"></i></a>TLS Options</h3>
|
|
<table>
|
|
<thead>
|
|
<tr>
|
|
<th style="text-align:left">Flag</th>
|
|
<th style="text-align:left">Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
<tr>
|
|
<td style="text-align:left"><code>--tls</code></td>
|
|
<td style="text-align:left">Enable TLS, do not verify clients</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--tlscert</code></td>
|
|
<td style="text-align:left">Server certificate file</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--tlskey</code></td>
|
|
<td style="text-align:left">Private key for server certificate</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--tlsverify</code></td>
|
|
<td style="text-align:left">Enable client TLS certificate verification</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--tlscacert</code></td>
|
|
<td style="text-align:left">Client certificate CA for verification</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<h3 id="cluster-options"><a name="cluster-options" class="plugin-anchor" href="#cluster-options"><i class="fa fa-link" aria-hidden="true"></i></a>Cluster Options</h3>
|
|
<p>The following flags are available on the server to configure clustering:</p>
|
|
<table>
|
|
<thead>
|
|
<tr>
|
|
<th style="text-align:left">Flag</th>
|
|
<th style="text-align:left">Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
<tr>
|
|
<td style="text-align:left"><code>--routes</code></td>
|
|
<td style="text-align:left">Comma-separated list of cluster URLs to solicit and connect</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--cluster</code></td>
|
|
<td style="text-align:left">Cluster URL for clustering requests</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--no_advertise</code></td>
|
|
<td style="text-align:left">Do not advertise known cluster information to clients</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--cluster_advertise</code></td>
|
|
<td style="text-align:left">Cluster URL to advertise to other servers</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--connect_retries</code></td>
|
|
<td style="text-align:left">For implicit routes, number of connect retries</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>You can read more about <a href="clustering.html">clustering configuration here</a>.</p>
|
|
<h3 id="common-options"><a name="common-options" class="plugin-anchor" href="#common-options"><i class="fa fa-link" aria-hidden="true"></i></a>Common Options</h3>
|
|
<table>
|
|
<thead>
|
|
<tr>
|
|
<th style="text-align:left">Flag</th>
|
|
<th style="text-align:left">Description</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody>
|
|
<tr>
|
|
<td style="text-align:left"><code>-h</code>, <code>--help</code></td>
|
|
<td style="text-align:left">Show this message</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>-v</code>, <code>--version</code></td>
|
|
<td style="text-align:left">Show version</td>
|
|
</tr>
|
|
<tr>
|
|
<td style="text-align:left"><code>--help_tls</code></td>
|
|
<td style="text-align:left">TLS help</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
|
|
|
|
</section>
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