rspamd webUI not responding anymore

[carslen]

Hi all,

out of nowhere the rspamd webui (accessible via port 11334 on DMS host) is not responding anymore. DMS istself is working as expected. There where no changes to DMS or rspamd configuration, the only obvious change was installing Ubuntu updates to the system.

Some info about the system itself:

• Ubuntu 24.04.3
• Docker CE 29.1.1
• containerd.io v2.2.0
• DMS 15.1.0

DMS is running on a dedicated Docker host, nothing else is running on that host. The port itself is open, and responding

# nc -z localhost 11334 -v
Connection to localhost (::1) 11334 port [tcp/*] succeeded!

But no content is delivered:

# curl -vv http://localhost:11334
* Host localhost:11334 was resolved.
* IPv6: ::1
* IPv4: 127.0.0.1
*   Trying [::1]:11334...
* Connected to localhost (::1) port 11334
> GET / HTTP/1.1
> Host: localhost:11334
> User-Agent: curl/8.5.0
> Accept: */*
>

/var/log/mail/rspamd.log inside the container does not print any lines when attempting to access the webui. So, I'm a bit lost. Any one a hint how to debug this any further?

If required, I can provide additional infos like my Docker Compose file etc.

Any help appreciated

Cheers Carsten

[polarathene]

Can you try restarting the container like our "Debugging" docs page says with docker compose up -d --force-recreate?

[carslen]

That did not change the described behaviour. :( Of course I tried before to restart DMS using docker compose down && docker compose up -d, but missed to mention it.

[carslen]

Hu, strange. After some time, without additional changes, rspamd WebUI started responding again. I'll monitor the system...