mailcow-dockerized-docs/docs/manual-guides/Redis/u_e-redis.en.md

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Redis is used as a key-value store for rspamd's and (some of) mailcow's settings and data. If you are unfamiliar with redis please read the [introduction to redis](https://redis.io/topics/introduction) and maybe visit this [wonderful guide](http://try.redis.io/) on how to use it.
## Client
To connect to the redis cli execute:
```
docker compose exec redis-mailcow redis-cli
```
### Debugging
Here are some useful commands for the redis-cli for debugging:
##### MONITOR
Listens for all requests received by the server in real time:
```
# docker compose exec redis-mailcow redis-cli
127.0.0.1:6379> monitor
OK
1494077286.401963 [0 172.22.1.253:41228] "SMEMBERS" "BAYES_SPAM_keys"
1494077288.292970 [0 172.22.1.253:41229] "SMEMBERS" "BAYES_SPAM_keys"
[...]
```
##### KEYS
Get all keys matching your pattern:
```
KEYS *
```
##### PING
Test a connection:
```
127.0.0.1:6379> PING
PONG
```
If you want to know more, here is a [cheat sheet](https://www.cheatography.com/tasjaevan/cheat-sheets/redis/).