Change SSH port in Linux

May 12, 2023#linux #网络安全21

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This text provides instructions on how to change the SSH port in Linux. It includes steps such as modifying the sshd_config file, restarting the sshd service, adding the port to the firewall, reloading the firewall, and checking the firewall settings. It also mentions that after making these changes, one can use Xshell or other client tools to connect to the server.

Change SSH Port in Linux#

Modify the sshd_config configuration file

Content to be modified: Port 10022

Restart the sshd service

Check the port information

Add port 10022 to the open port list of the firewall

Add port:

Persistently configure port 10022 in the open port list.

Reload the firewall

Command:

Explanation: Reload the firewall to apply the latest configuration.

Check the firewall's allow status for the port

Command:

Explanation: Check if the firewall has allowed the port.

View the list of ports allowed by the firewall

Command:

Explanation: View the list of ports allowed by the firewall.

Connect to the server using Xshell client

After confirming the port modification and opening the firewall, you can use Xshell or other client tools to connect to the server.