..., netfilter xtables,
with tools ip, wizards for rules,
with save/load rules with files,
with shield to ssh or other servers choosed,
with limit bandwidth, string word,
with host whitelist, host blacklist,
with other more capabilities of firewall.
# fwiptables install (root)
modes: chmod 755 fwiptables
install: ./fwiptables install
# fwiptables location
File location : /usr/bin/fwiptables
Config directory: /root/.config/fwiptables