Following are the commands to open tcp or udp ports on the server.
Before using commands for opening the port please make sure the specific port is already opend and what is the use of that port.
you can verify the port with
netstat -nap | grep :
1. you can open TCp port with
iptables -A INPUT -p tcp –dport
2. You can open UDP port with
iptables -A INPUT -p udp –sport
3. service iptables save
and for flushhing iptables us
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