In most of all linux flavour like ubuntu. This blog will guide you on how to enable ssh in ubuntu.
OpenSSH is a FREE version of the SSH connectivity tools. follow the set of steps mentioned bellow
Ubuntu SSHD Installation
So lets Install ssh server and client first.
sudo apt-get install openssh-server openssh-client
Now configuration check.
Type following command to check ssh is working or not.
ssh localhost or ssh user@127.0.0.1
Check the status of ssh service
sudo /etc/init.d/ssh {start|stop|reload|force-reload|restart|try-restart|status}
or
// if its configured as server then use service command.
sudo service ssh force-reload
Command to make sure openssh is running:
netstat -tulpn
If its not listing on default port 22. then make it 22 or you can configure it for any other port like 512. Change setting in file /etc/ssh/sshd_config and then restart ssh service.
Finally make sure your open port 22 using iptables. Type following command to list current firewall rules:
sudo iptables -L -n