There was a test to prevent an errorneous loop detection when a remote would reconnect (due to a stale connection) while the accepting side did not detect the bad connection yet. However, this test was racy because the test was done prior to add the connections to the map. In the case of a misconfiguration where the remote creates 2 different remote connections that end-up binding to the same account in the accepting side, then it was possible that this would not be detected. And when it was, the remote side would be unaware since the disconnect/ reconnect attempts would not show up if not running in debug mode. This change makes sure that the detection is no longer racy and returns an error to the remote so at least the log/console of the remote will show the "duplicate connection" error messages. Resolves #1730 Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
NATS is a simple, secure and performant communications system for digital systems, services and devices. NATS is part of the Cloud Native Computing Foundation (CNCF). NATS has over 40 client language implementations, and its server can run on-premise, in the cloud, at the edge, and even on a Raspberry Pi. NATS can secure and simplify design and operation of modern distributed systems.
Documentation
- Official documentation
- FAQ
- Watch a video overview of NATS to learn more about its origin story and design philosophy.
Contact
- Twitter: Follow us on Twitter!
- Google Groups: Where you can ask questions
- Slack: Click here to join. You can ask question to our maintainers and to the rich and active community.
Contributing
If you are interested in contributing to NATS, read about our...
Security
Security Audit
A third party security audit was performed by Cure53, you can see the full report here.
Reporting Security Vulnerabilities
If you've found a vulnerability or a potential vulnerability in the NATS server, please let us know at nats-security.
License
Unless otherwise noted, the NATS source files are distributed under the Apache Version 2.0 license found in the LICENSE file.
