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How do you all handle security and monitoring for your publicly accessible services? (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by a_fancy_kiwi@lemmy.world to c/selfhosted@lemmy.world

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This is a continuation of my other post

I now have homeassistant, immich, and authentik docker containers exposed to the open internet. Homeassistant has built in 2FA and authentik is being used as the authentication for immich which supports 2FA. I went ahead and blocked connections from every country except for my own via cloudlfare (I'm aware this does almost nothing but I feel better about it).

At the moment, if my machine became compromised, I wouldn't know. How do I monitor these docker containers? What's a good way to block IPs based on failed login attempts? Is there a tool that could alert me if my machine was compromised? Any recommendations?

EDIT: Oh, and if you have any recommendations for settings I should change in the cloudflare dashboard, that would be great too; there's a ton of options in there and a lot of them are defaulted to "off"

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[–] a_fancy_kiwi@lemmy.world 3 points 1 year ago (1 children)

Have also set it up so they get banned on Cloudflare’s side, so before another malicious request ever reaches me.

How did you end up setting that up?

[–] smiletolerantly@awful.systems 14 points 1 year ago (1 children)

Fail2ban allows you set different actions for different infringements, as well as multiple ones. So in addition to being put in a "local" jail, the offending IP also gets added to the cloudflare rules (? Is that what its called?) via their API. It's a premade action called "cloudflare-token-multi"

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

that's awesome. thanks!