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How To Enable SSH in Ubuntu

Ubuntu | kamil

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Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. The best known example application is for remote login to computer systems by users.

Here’s how to enable Secure Shell (SSH) service in Ubuntu (any version), to allow secure remote login and other network communications.

Ubuntu provides OpenSSH (OpenBSD Secure Shell) in its universe repositories, which is a suite of security-related network-level utilities based on the SSH protocol.

1. To install it, open terminal (Ctrl+Alt+T) or log in Ubuntu server and run command:

sudo apt-get install openssh-server

install openssh server

2. After that, you should have SSH service enabled in your system, you may check its status by running command:

sudo service ssh status

check ssh status

3. You may change some settings (e.g., the listening port, and root login permission) by editing the configuration file via command:

sudo nano /etc/ssh/sshd_config

On Ubuntu desktop, you may use gedit instead of nano:

SSH settings

Finally apply the changes by restarting or reloading SSH:

sudo service ssh restart

For more, read the official manual page.

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