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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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

submitted 2 weeks ago* (last edited 2 weeks ago) by a_fancy_kiwi to c/selfhosted

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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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[–] j4k3 5 points 2 weeks ago (13 children)

I've half ass thought about this but never have tried to actually self host. If you have access to all devices, why not just use your own self signed certificates to encrypt everything and require the certificate for all connections? Then there is never a way to log in or connect right? The only reason for any authentication is to make it possible to use any connection to dial into your server. So is that a bug or a feature. Maybe I'm missing something fundamental in this abstract concept that someone will tell me?

[–] a_fancy_kiwi 6 points 2 weeks ago (12 children)

If you have access to all devices, why not just use your own self signed certificates to encrypt everything and require the certificate for all connections?

Sounds like you are describing a VPN. I was using that setup before but small stuff like immich album sharing via a link won't work properly. Also, having to ensure a vpn is on and connected is a little to much to ask of my partner; they would turn it off and forget about it and then ask why their app wasn't working :/

[–] peregus 1 points 2 weeks ago (2 children)

Beside the fact that you would like to understand if you've done everything properly (that's good, but I can't help you here), a VPN on a smartphone can be always active. Mine is always on and I've never noticed any battery problem. If you prefer something simpler there's Tailscale.

[–] a_fancy_kiwi 5 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

If it were only me using the apps, I'd be using a VPN. Over the years, I've used OpenVPN, Wireguard, and now Tailscale. In my experience, they work like 99% of the time. That last 1% though is weird connection issues; usually when switching between WiFi and cellular (or vice versa) but sometimes it's my server or ISP and I have to turn the VPN off and back on to troubleshoot. During those rare times, my partner will either turn off the VPN and forget to turn it back on or they will forget about the VPN completely and not be able to use their phone. Ideally, I'd like to set something up that doesn't require any potential troubleshooting on their part so I can avoid hearing "why can't we just use Google photos?" or "what's wrong with Google home?" 😓

[–] [email protected] 3 points 2 weeks ago

Yes this is the main reason for me. If you're alone then you don't care that things occasionally don't work. Once you have at least one more person or potentially the extended family it's a whole different story. And then in my opinion a potentially not 100% secured publicly accessible immich instance at home is magnitudes better than having the family just use google photos.

Because like you say, every little hick up from your site is met with "why can't we just use $bigtech instead, it always works".

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