Secure Shell (SSH) is a protocol that allows you to securely connect to a remote server or device. It provides encryption for network services like remote shell, file transfer, and network port forwarding.
If you’re using CentOS 7 as your server’s operating system, enabling SSH is a straightforward process. Follow these steps to enable SSH in CentOS 7:
- Install OpenSSH: OpenSSH is the package that provides SSH protocol support. If you don’t have it installed, you can do so by running the following command:
sudo yum install openssh-server - Start the SSH Service: Once OpenSSH is installed, start the SSH service with the following command:
sudo systemctl start sshd - Enable SSH on Boot: To ensure that the SSH service starts automatically upon system boot, run the following command:
sudo systemctl enable sshd
With these steps completed, SSH should now be enabled on your CentOS 7 server. You can connect to your server remotely using an SSH client like PuTTY (for Windows) or the terminal (for Linux or macOS).
Remember to configure firewall settings to allow SSH connections if the firewall is enabled on your server. You can do so by running the following command:sudo firewall-cmd --zone=public --permanent --add-service=sshsudo firewall-cmd --reload
By following these simple steps, you can enable SSH on your CentOS 7 server and establish secure remote connections with ease.