ssserver stops working after a while

[lichunghk]

ssserver stops working after a while of being online. After a little bit of digging I found that it is because the ports are not opened. The following scripts are supposed to be in effect but got overrided for some reason after maybe wan is restarted or poor network connection on server side: iptables -t filter -I INPUT -p tcp --dport $ssserver_port -j ACCEPT iptables -t filter -I INPUT -p udp --dport $ssserver_port -j ACCEPT

Please help to rectify