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This article mainly introduces how to modify the SSH port number in the Linux system, the article is very detailed, has a certain reference value, interested friends must read it!

1. Modify the configuration file vi / etc/ssh/sshd_config first

Find the section # Port 22, where the logo uses port 22 by default, which is modified as follows:

Port 22 Port 50000 and then save exit

The service restart takes effect.

/ etc/init.d/sshd restart

This makes SSH ports 22 and 50000 available at the same time.

2. Configure the access policy of firewall: vi / etc/sysconfig/iptables

Enable port 50000.

Firewall restart: / etc/init.d/iptables restart

Now use the ssh tool to connect to port 50000 to test for success. If the connection is successful, edit the settings of sshd_config again and delete the Port22 inside.

The above is all the contents of the article "how to modify SSH port number in Linux system". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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