#! /sbin/nft -f table inet firewall { set dns { type ipv4_addr flags interval elements = { 193.48.225.248 } } set www { type ipv4_addr flags interval elements = { 193.48.225.241, 193.48.225.242, 193.48.225.243, 193.48.225.247 } } set irc { type ipv4_addr flags interval elements = {193.48.225.244} } set znc { type ipv4_addr flags interval elements = { 193.48.225.242 } } set smtp { type ipv4_addr flags interval elements = { 193.48.225.249, 193.48.225.245 } } set letsencrypt { type ipv4_addr flags interval elements = {193.48.225.246, 193.48.225.248, 193.48.225.249} } set federez { type ipv4_addr flags interval elements = {193.48.225.201} } set gitlab { type ipv4_addr flags interval elements = { 193.48.225.243 } } set video { type ipv4_addr flags interval elements = { 193.48.225.240 } } set ldap { type ipv4_addr flags interval elements = { 193.48.225.240 } } set ldap_clients { type ipv4_addr flags interval elements = { 10.7.0.0/24, 10.69.0.0/20, 185.230.78.37, 51.15.178.125} } set mysql { type ipv4_addr flags interval elements = {10.7.0.243} } chain to_dmz { ip daddr @smtp tcp dport { 22, 25, 80 } accept ip daddr @dns tcp dport { 22, 53 } accept ip daddr @dns udp dport { 53 } accept ip daddr @www tcp dport { 21, 22, 80, 443 } accept ip daddr @federez tcp dport { 22, 53, 80, 443, 389 } accept ip daddr @federez udp dport { 53, 636 } accept ip daddr @znc tcp dport { 6667 } accept ip daddr @letsencrypt tcp dport { 80, 443 } accept ip daddr @irc tcp dport { 22, 6667, 6697, 6767, 7000, 9090 } accept ip daddr @video tcp dport { 37700, 6754 } accept ip daddr @video udp dport { 37800 } accept ip daddr @video tcp dport { 5678 } accept ip daddr @ldap ip saddr @ldap_clients tcp dport { 389, 636} accept drop } chain from_dmz { ip daddr @mysql ip saddr != @www tcp dport 3306 drop ip daddr @mysql ip saddr != @smtp tcp dport 3306 drop } }