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this post was submitted on 12 Jul 2023
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I have many of my services open to the internet, but behind authelia w/2fa and a reverse proxy. I haven't had a security issue yet, been running this way for a few years.
I think it's pretty safe as long as you keep them up to date. I run backups weekly and do updates at least once a month.
Using geoip restrictions will also help a lot because you can block most of the scanner bots by denying connections from outside your geographic region. These bots detect what services are open to the internet and then add them to databases like shodan. If a security flaw is found in one of those services, hackers will search those databases for servers with those services running and try to exploit them. If you aren't in those databases they can't easily find you before you are able to patch.
Very good point regarding geoip, thanks!