Default ferm conf

ferm.conf

def $TRUSTED = (
);
domain (ip) {
    table filter {
        chain INPUT {
            policy DROP;

            # connection tracking
            mod state state INVALID DROP;
            mod state state (ESTABLISHED RELATED) ACCEPT;

            # allow local packet
            interface lo ACCEPT;

            # respond to ping
            proto icmp ACCEPT;

            # allow SSH connections
            proto tcp dport ssh ACCEPT;

            saddr $TRUSTED proto (tcp udp) ACCEPT;
        }
        chain OUTPUT {
            policy ACCEPT;

            # connection tracking
            #mod state state INVALID DROP;
            mod state state (ESTABLISHED RELATED) ACCEPT;
        }
        chain FORWARD {
            policy DROP;

            # connection tracking
            mod state state INVALID DROP;
            mod state state (ESTABLISHED RELATED) ACCEPT;
        }
    }
}

@include ferm.d/;