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Context: Docker bypasses all UFW firewall rules (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by qaz@lemmy.world to c/programmer_humor@programming.dev

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Docker docs:

Docker routes container traffic in the nat table, which means that packets are diverted before it reaches the INPUT and OUTPUT chains that ufw uses. Packets are routed before the firewall rules can be applied, effectively ignoring your firewall configuration.

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[–] qaz@lemmy.world 1 points 1 year ago (1 children)

The VPS I'm using unfortunately doesn't offer an external firewall

[–] MasterNerd@lemmy.zip 2 points 1 year ago (1 children)

Well, if you have the option you could set up a virtual network through the VPS and have a box with pfsense or something to route all traffic through. Take this with a grain of salt - I've seen this done but never done it fully myself.

[–] qaz@lemmy.world 2 points 1 year ago

I've just disabled all incoming connections (including SSH etc.) and access everything through WireGuard