Modify sshd port in Centos7

Modify sshd port in Centos7

In daily work, we often modify the default ssh port 22 for security reasons.

First, enter the sshd service configuration file like centos5/6.

1. Vi/etc/ssh/sshd_config

Find # Port 22 to remove # Change 22 to what you want, and change it to Port 2000 and save it.

2. Restart the sshd service.

Systemctl restart sshd. service

3. semanage port-a-t ssh_port_t-p tcp 3333

Add port 2000 to SELinux

Systemctl status sshd. service to view the sshd service port status

4. Disable The selinux Service

Test telnet [ip] [port] on the remote host.

Ssh test@192.168.100.100-p 2000

Test@192.168.100.100's password:

Enter the password to access