Shout out for Shorewall, i've been using it as my primary firewall-helper for nearly 20 years with 0 upgrade hassle. It's a perfect-balance of power and simpli

Shout out for Shorewall, i've been using it as my primary firewall-helper for nearly 20 years with 0 upgrade hassle. It's a perfect-balance of power and simplicity. It doesn't have a web interface but is just a nice way configure Linux' built-in networking features. It doesn't consume any extra resources and will run anywhere Linux does.