By default Ubuntu Desktop OS comes with ssh client package. It does not include ssh server package which is needed to access this machine.
To install SSH on the newly installed Ubuntu 12.04 run following commands
sudo apt-get update sudo apt-get install ssh
That’s it. To confirm the working ssh. Run the following commands from another machine
ssh username@IP_of_the_ubuntu_machine
If you get following error then
1. ssh is not running on the remote server
2. ssh is configured to run on different port
ssh: connect to host 192.168.1.10 port 22: Connection refused
Also remember to open ssh port between remote and host machine for communication.
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