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this an explaining PR #769

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Marek Walczak 2017-11-30 22:55:27 +01:00
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docs/content/config/security/fail2ban.md
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Fail2ban is installed automatically and bans IP addresses for 3 hours after 3 failed attempts in 10 minutes by default. If you want to change this, you can easily edit [config/fail2ban-jail.cf](https://github.com/tomav/docker-mailserver/blob/master/config/fail2ban-jail.cf).
You can do the same with the values from fail2ban.conf, e.g dbpurgeage. In that case you need to edit [config/fail2ban-fail2ban.cf](https://github.com/tomav/docker-mailserver/blob/master/config/fail2ban-fail2ban.cf)
__Important__: The mail container must be launched with the NET_ADMIN capability in order to be able to install the iptable rules that actually ban IP addresses. Thus either include `--cap-add=NET_ADMIN` in the docker run commandline or the equivalent docker-compose.yml:
```