Home > Article > Operation and Maintenance > How to use iptables to open specified ports under linux
The method to use iptables to open a specified port under Linux is: 1. Execute the [/sbin/iptables -I INPUT -p tcp --dport 8000 -j ACCEPT] command to open the port; 2. Restart the service; 3. Check whether the port is open.
Open the network port that allows external access through the following command:
Open port 8000
/sbin/iptables -I INPUT -p tcp --dport 8000 -j ACCEPT
Save the configuration
/etc/rc.d/init.d/iptables save
Restart the service
/etc/rc.d/init.d/iptables restart
Check whether the port is open
/etc/init.d/iptables status
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