I have everything I host and expose behind authelia (which requires 2fa) as middleware or as the only login method with oicd, thus far it seems to work well, of course I get a bunch of malicious traffic and spam but this gets to authelia and stops there, I don’t even see multiple tried login tries ever so I felt pretty safe. However it does seem that everyone uses either fail2ban or crowdsec in addition so I have been wondering if it would really add any security in my setup or if I’m missing something. I’m sure it wouldn’t hurt but crowdsec always seemed a little too complex for me and I don’t want something I don’t fully understand in my security layer and I never saw a nice way to setup fail2ban so never bothered. Afaik there’s no webui or such things and you have to manually make working regex for everything. I’d like to know if I’m missing something or if anyone has tipps to give
Authelia should come with rate limiting to protect against brute-force attacks. That could be enough.
I’d generally advise to make sure such protection actually works. Like look up the limits and try to login with a wrong password 30 times… Especially if you added stuff on top (fail2ban, crowdsec…). Has happened to me I misconfigured stuff and it didn’t limit anything… Now I check to make sure for important bits like an authentication service.
Do make sure that you can eventually get back in after testing, though. Sure, it’s safer when even you can’t access it, but… :p
i do have ratelimiting configured but yes i never tested it which i should