How to configure SSH under Linux system? How do I turn on ssh?

SSH is an important way for Linux remote connection, how to configure the SSH service to install Linux system, how to open ssh? Let's take a look at it below (this example shows how to open the SSH service for the CentOS system).

Query \ Install SSH service

1. Log in to the Linux system and open the Terminal command. Enter Rpm-qa |grep ssh to find out if the current system is installed

2. If you do not have an SSH package installed, you can install it through the Yum or RPM installation package (not specific)

2. Start the SSH service

Once the installation is done, the SSH service is turned on. SSH service is generally called sshd, command Line input service sshd start can be started

or use/etc/init.d/sshd start

3. Configure \ View sshd port

To view or edit the SSH service configuration file, such as Vi/etc/ssh/sshd.config, if you want to modify the port, change the default port of Port 22 to the other ports (note the previous # number to be removed)

4. Remote connection to SSH

If you need to connect to SSH remotely, you need to open the 22 port on the firewall. Turn off the firewall or set the 22 port exception

How to configure SSH under Linux system? How do I turn on ssh?