I’ve been running my server without a firewall for quite some time now, I have a piped instance and snikket running on it. I’ve been meaning to get UFW on it but I’ve been too lazy to do so. Is it a necessary thing that I need to have or it’s a huge security vulnerability? I can only SSH my server from only my local network and must use a VPN if I wanna SSH in outside so I’d say my server’s pretty secure but not the furthest I could take it. Opinions please?
Possibly it’s about personality types. I was only going on my own experience. Of always being told by a chorus of experts “Oh no you don’t want to do that!” and ending up being terrified to touch anything. When I now know that I usually had nothing to be afraid of, because dangerous things tend to be locked down by design, exactly as they should be.
Until they arent.
They are experts because they knew what clicking the wrong button might do.
E.g.: Database admins using the wrong script with a miscconfigured argument or a backup admin responding to a failover, tripple checking every setting to not create a problematic failover and then still clicking the wrong button causing an outage because some random behaviour caused an overload.
It happens. And best case you were better (double or tripple) safe than sorry.