Linux open port, linux Port

Linux open port, linux Port

First find the iptables File

Generally under/etc/sysconfig

Then vi iptables

Just like adding A line-a input... to open the port

Save and enter

Service iptables restart

Restart the service

How does one enable or disable ports in LINUX?

Nc-lp 22 &
(Root permission is required. If you do not log on as root, you can use su root or sudo to escalate the permission)

You can run the modify command to check whether the command is enabled.
Netstat-an | grep 22

How does one enable port 22 in LINUX?

Port 22 is an ssh service. You only need to start the ssh service. You can run the command "/etc/init. d/sshd start ". Then use netstat-antulp | grep ssh to check whether relevant information can be seen.