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hardware / mailserver

:warning: UNMAINTAINED - Simple and full-featured mail server using Docker
https://store.docker.com/community/images/hardware/mailserver
MIT License
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fail2ban for mailserver #341

Closed heliflieger closed 5 years ago

heliflieger commented 5 years ago

Classification

Reproducibility

Description

Can you insert the fail2ban to the mailserver? I think it would be nice to block the fault logins/hacking from other destinations.

hardware commented 5 years ago

fail2ban is outside the scope of this project, I need to keep it easy to maintain. Personally, I prefer Ossec to protect my mailserver. I use it for years outside of my container, in host level.

Ossec : https://github.com/ossec/ossec-hids Ossec fork (Wazuh) : https://github.com/wazuh/wazuh

denji commented 5 years ago

I would not like to see fail2ban as a base solution inside a mailserver container. If other fail2ban alternatives are possible.

navossoc commented 5 years ago

@hardware Is there any general guidelines that you can share? Like the rules?

I would like to test it...

[]'s

heliflieger commented 5 years ago

I have done it now outside the docker container on the docker-host.

The changed rules and filters are attched.

docker-action.conf.txt dovecot-docker.conf.txt jails.conf-rules.txt postfix-docker.conf.txt postfix-sasl-docker.conf.txt

Remark: After start/restart the docker container, you should restart the fail2ban. This is needed, because the docker can get a new container storage and then the logfiles are located on another position.

navossoc commented 5 years ago

Remark: After start/restart the docker container, you should restart the fail2ban. This is needed, because the docker can get a new container storage and then the logfiles are located on another position.

Probably is easy to bind mount the logs from the container to the host and make it use a fixed path.

I'll take a closer look later, I let you know if I found something useful ;) Anyhow, thanks.

[]'s