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This article introduces the knowledge of "how to modify ssh default port 22 by Linux". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

I. modify the configuration file

Vi / etc/ssh/sshd_config

Find # Port 22

Change it to the port number you want to use: Port 26000

Then: X exit save

2. Restart the ssh service

/ etc/init.d./sshd restart

Version 6.5: / etc/init.d/sshd restart

Version 7.4: systemctl restart sshd.service

If you also want to set up a firewall, configure: vi / etc/sysconfig/iptables

Enable port 26000: / etc/init.d/iptables restart

Third, if you need to display a fixed IP before you can log in

1. Modify / etc/hosts.deny to add a line of sshd:ALL-- # means that no ip can log in

two。 Then modify: / etc/hosts.allow, in which the following settings are made: sshd:192.168.0.241-- # means only 192.168.0.241 is allowed to log in

This is the end of the content of "how Linux modifies ssh default port 22". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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