How Do I Disable Ssh Access in Linux?

Open the file ‘/etc/ssh/sshd_config’ in any text editor and search for the string ‘PermitRootLogin’. Uncomment the line and if it has any other value, set the value to ‘no’. Now try logging in to localhost with user ‘root’. It will also show the error ‘Permission Denied’.

How do I disable SSH access?

To stop and disable the SSH server, proceed as follows:

1. Open a terminal.
2. Become root .
3. Issue the following commands: systemctl stop ssh. systemctl disable ssh.

How enable and disable SSH in Linux?

Enable or disable the SSH server

1. sudo rm -f /etc/ssh/sshd_not_to_be_run sudo systemctl enable ssh sudo systemctl start ssh.
2. sudo mv /etc/init/ssh.conf.back /etc/init/ssh.conf sudo start ssh.
3. sudo systemctl stop ssh sudo systemctl disable ssh.
4. sudo stop ssh sudo mv /etc/init/ssh.conf /etc/init/ssh.conf.back.