{ ... }:
{
  networking = {
    firewall.extraCommands = ''
      			# Ssh access.
      			iptables  -I INPUT -j ACCEPT -s 10.0.0.0/8          -p tcp --dport 22143
      			ip6tables -I INPUT -j ACCEPT -s fd09:8d46:0b26::/48 -p tcp --dport 22143
      		'';
  };
}