I have been thinking about self-hosting my personal photos on my linux server. After the recent backdoor was detected I’m more hesitant to do so especially because i’m no security expert and don’t have the time and knowledge to audit my server. All I’ve done so far is disabling password logins and changing the ssh port. I’m wondering if there are more backdoors and if new ones are made I can’t respond in time. Appreciate your thoughts on this for an ordinary user.
You don’t. Hackers often exploit things like this for ages before they are found. Every bit of non simple software also has bugs.
But chances are you won’t be the target.
Just keep everything updated and you should be alright.
And implement least privilege and automatic updates