# Summary * [Introduction](README.md) * [What's New in 2.0](whats_new/whats_new_20.md) * [FAQ](faq.md) * [nats.io](https://nats.io) ## Concepts * [What is NATS](developer/concepts/intro.md) * [Subject-Based Messaging](developer/concepts/subjects.md) * [Publish-Subscribe](developer/concepts/pubsub.md) * [Request-Reply](developer/concepts/reqreply.md) * [Queue Groups](developer/concepts/queue.md) * [Acknowledgements](developer/concepts/acks.md) * [Sequence Numbers](developer/concepts/seq_num.md) ## Developing With NATS * [Introduction](developer/README.md) * [Connecting](developer/connecting/intro.md) * [Connecting to the Default Server](developer/connecting/default_server.md) * [Connecting to a Specific Server](developer/connecting/specific_server.md) * [Connecting to a Cluster](developer/connecting/cluster.md) * [Setting a Connect Timeout](developer/connecting/connect_timeout.md) * [Ping/Pong Protocol](developer/connecting/pingpong.md) * [Controlling the Client/Server Protocol](developer/connecting/protocol.md) * [Turning Off Echo'd Messages](developer/connecting/noecho.md) * [Automatic Reconnections](developer/reconnect/intro.md) * [Disabling Reconnect](developer/reconnect/disable.md) * [Set the Number of Reconnect Attempts](developer/reconnect/max.md) * [Pausing Between Reconnect Attempts](developer/reconnect/wait.md) * [Avoiding the Thundering Herd](developer/reconnect/random.md) * [Listening for Reconnect Events](developer/reconnect/events.md) * [Buffering Messages During Reconnect Attempts](developer/reconnect/buffer.md) * [Securing Connections](developer/security/intro.md) * [Authenticating with a User and Password](developer/security/userpass.md) * [Authenticating with a Token](developer/security/token.md) * [Authenticating with an NKey](developer/security/nkey.md) * [Authenticating with a Credentials File](developer/security/creds.md) * [Encrypting Connections with TLS](developer/security/tls.md) * [Receiving Messages](developer/receiving/intro.md) * [Synchronous Subscriptions](developer/receiving/sync.md) * [Asynchronous Subscriptions](developer/receiving/async.md) * [Unsubscribing](developer/receiving/unsubscribing.md) * [Unsubscribing After N Messages](developer/receiving/unsub_after.md) * [Replying to a Message](developer/receiving/reply.md) * [Wildcard Subscriptions](developer/receiving/wildcards.md) * [Queue Subscriptions](developer/receiving/queues.md) * [Draining Messages Before Disconnect](developer/receiving/drain.md) * [Structured Data](developer/receiving/structure.md) * [Sending Messages](developer/sending/intro.md) * [Including a Reply Subject](developer/sending/replyto.md) * [Request-Reply Semantics](developer/sending/request_reply.md) * [Caches, Flush and Ping](developer/sending/caches.md) * [Sending Structured Data](developer/sending/structure.md) * [Monitoring the Connection](developer/events/intro.md) * [Listen for Connection Events](developer/events/events.md) * [Slow Consumers](developer/events/slow.md) * [Tutorials](developer/tutorials/intro.md) * [Explore NATS Pub/Sub](developer/tutorials/pubsub.md) * [Explore NATS Request/Reply](developer/tutorials/reqreply.md) * [Explore NATS Queueing](developer/tutorials/queues.md) * [Advanced Connect and Custom Dialer in Go](developer/tutorials/custom_dialer.md) ## NATS Server * [Installing](nats_server/installation.md) * [Running](nats_server/running.md) * [Window Service](nats_server/windows_srv.md) * [Clients](nats_server/clients.md) * [Flags](nats_server/flags.md) * [Configuration](nats_server/configuration.md) * [Securing NATS](nats_server/securing_nats.md) * [Enabling TLS](nats_server/tls.md) * [Authentication](nats_server/auth_intro.md) * [Tokens](nats_server/tokens.md) * [Username/Password](nats_server/username_password.md) * [TLS Authentication](nats_server/tls_mutual_auth.md) * [NKeys](nats_server/nkey_auth.md) * [Accounts](nats_server/accounts.md) * [JWTs](nats_server/jwt_auth.md) * [Authentication Timeout](nats_server/auth_timeout.md) * [Authorization](nats_server/authorization.md) * [Clustering](nats_server/clustering.md) * [Configuration](nats_server/cluster_config.md) * [TLS Authentication](nats_server/cluster_tls.md) * [Gateways](gateways/README.md) * [Configuration](gateways/gateway.md) * [Leaf Nodes](leafnodes/README.md) * [Configuration](leafnodes/leafnode_conf.md) * [Logging](nats_server/logging.md) * [Monitoring](nats_server/monitoring.md) * [Managing A NATS Server](nats_admin/README.md) * [Upgrading a Cluster](nats_admin/upgrading_cluster.md) * [Slow Consumers](nats_admin/slow_consumers.md) * [Signals](nats_admin/signals.md) * [System Accounts](sys_accounts/README.md) * [Configuration](sys_accounts/sys_accounts.md) * [NATS and Docker](nats_docker/README.md) * [Tutorial](nats_docker/tutorial.md) * [Docker Swarm](nats_docker/docker_swarm.md) ## NATS Tools * [mkpasswd](nats_tools/mkpasswd.md) * [nk](nats_tools/nk.md) * [nsc](nats_tools/nsc/README.md) * [Basics](nats_tools/nsc/nsc.md) * [Streams](nats_tools/nsc/streams.md) * [Services](nats_tools/nsc/services.md) * [Signing Keys](nats_tools/nsc/signing_keys.md) * [nats-account-server](nats_tools/nas/README.md) * [Basics](nats_tools/nas/nas_conf.md) * [Inspecting JWTs](nats_tools/nas/inspecting_jwts.md) * [Directory Store](nats_tools/nas/dir_store.md) * [Update Notifications](nats_tools/nas/notifications.md) * [Memory Resolver](nats_tools/nas/mem_resolver.md) * [nats-top](nats_tools/nats_top/README.md) * [Tutorial](nats_tools/nats_top/tutorial.md) * [nats-bench](nats_tools/natsbench.md) ## NATS Streaming Concepts * [Introduction](nats_streaming/intro.md) * [Relation to NATS](nats_streaming/relation-to-nats.md) * [Client Connections](nats_streaming/client-connections.md) * [Channels](nats_streaming/channels/channels.md) * [Message Log](nats_streaming/channels/message-log.md) * [Subscriptions](nats_streaming/channels/subscriptions/subscriptions.md) * [Regular](nats_streaming/channels/subscriptions/regular.md) * [Durable](nats_streaming/channels/subscriptions/durable.md) * [Queue Group](nats_streaming/channels/subscriptions/queue-group.md) * [Redelivery](nats_streaming/channels/subscriptions/redelivery.md) * [Store Interface](nats_streaming/store-interface.md) * [Store Encryption](nats_streaming/store-encryption.md) * [Clustering](nats_streaming/clustering/clustering.md) * [Supported Stores](nats_streaming/clustering/supported-stores.md) * [Configuration](nats_streaming/clustering/configuration.md) * [Auto Configuration](nats_streaming/clustering/auto-configuration.md) * [Containers](nats_streaming/clustering/containers.md) * [Fault Tolerance](nats_streaming/fault-tolerance/ft.md) * [Active Server](nats_streaming/fault-tolerance/active-server.md) * [Standby Servers](nats_streaming/fault-tolerance/standby-server.md) * [Shared State](nats_streaming/fault-tolerance/shared-state.md) * [Failover](nats_streaming/fault-tolerance/failover.md) * [Partitioning](nats_streaming/partitioning.md) ## Developing With NATS Streaming * [Introduction](developer/streaming/README.md) * [Connecting to NATS Streaming](developer/streaming/connecting.md) * [Publishing to a Channel](developer/streaming/publishing.md) * [Receiving Messages from a Channel](developer/streaming/receiving.md) * [Durable Subscriptions](developer/streaming/durables.md) * [Queue Subscriptions](developer/streaming/queues.md) * [Acknowledgements](developer/streaming/acks.md) * [The Streaming Protocol](developer/streaming/protocol.md) ## NATS Streaming Server * [Installing](nats_streaming/gettingstarted/install.md) * [Running](nats_streaming/gettingstarted/run.md) * [Configuring](nats_streaming/gettingstarted/configuring.md) * [Securing](nats_streaming/gettingstarted/tls.md) * [Process Signaling](nats_streaming/gettingstarted/process-signaling.md) * [Windows Service](nats_streaming/gettingstarted/windows-service.md) * [Embedding NATS Streaming Server](developer/streaming/embedding.md) * [Docker Swarm](nats_streaming/swarm.md) * [Monitoring](nats_streaming/monitoring/monitoring.md) * [Enabling](nats_streaming/monitoring/enabling.md) * [Endpoints](nats_streaming/monitoring/endpoints.md) ## NATS Protocol * [Protocol Demo](nats_protocol/nats-protocol-demo.md) * [Client Protocol](nats_protocol/nats-protocol.md) * [Developing a Client](nats_protocol/nats-client-dev.md) * [NATS Cluster Protocol](nats_protocol/nats-server-protocol.md)