Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED)

[zcn]

Infos:

• Used Zammad version: 6.5.0-1753334673.cc7247b2.noble
• Used Zammad installation type: package
• Operating system: Ubuntu 24.04

Expected behavior:

• Rail Server running
• Websockets active

Actual behavior:

• Nothing is listening on ports 3000 and 6042
• The systemd services are active (running)

Steps to reproduce the behavior:

Not sure to be honest. I have installed Zammad last week. Started configuring everything. Haven’t looked at it until know and cannot get it back to work

Apparently, there is a problem connecting to Redis

$ sudo zammad run rails r "Setting.set('es_url', 'http://127.0.0.1:9200')"
There was an error trying to connect to Redis via redis://localhost:6379.
Please provide a Redis instance at localhost:6379 or set REDIS_URL to point to a different location.
#<Redis::CannotConnectError: Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED)>
$ tail -f /var/log/redis/redis-server.log
# Configuration loaded
* monotonic clock: POSIX clock_gettime
* Running mode=standalone, port=6379.
# Server initialized
* Loading RDB produced by version 7.0.15
* RDB age 0 seconds
* RDB memory usage when created 0.84 Mb
* Done loading RDB, keys loaded: 0, keys expired: 0.
* DB loaded from disk: 0.000 seconds
* Ready to accept connections
^C

redis-cli -h 127.0.0.1 -p 6379 connects just fine though.

Not much going on in production.log except for repeating the following two lines over and over:

Using Zammad's file store as Rails cache store.
Using the File back end for Zammad's web socket session store.

I hope somebody has an idea how to fix this

[dvanzuijlekom]

Connecting to localhost is not the same as connecting to 127.0.0.1…

Is Redis both listening on IPv4 127.0.0.1 and IPv6 ::1 loopback addresses? Check with:

ss -tunapl|grep 6379

Is localhost configured as the hostname for both IPv4 and IPv6 loopback addresses? Check with:

host localhost

Also, what is the status of the Redis service? Check with:

systemctl status redis

[zcn]

Thank you very much. Your comment “connecting to localhost is not the same as connecting to 127.0.0.1” was spot on. localhost was set to 127.0.1.1 Redis itself was operating as intended.