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Do I really need a firewall for my server? (sopuli.xyz)
submitted 1 year ago by to c/selfhosted@lemmy.world
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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?

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[–] 3 points 1 year ago (2 children)

Are you saying that NAT isn’t effectively a firewall or that a NAT firewall isn’t effectively a firewall?

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  • [–] 3 points 1 year ago

    NAT simply maps IPS across subnet boundaries in such a way that upstream routing tables don't need updating.

    If you use destination NAT forward rules to facilitate specific destination port access, you are using a firewall.

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