Are you tired of typing full length host-names while connecting via SSH? Do you frequently scp files from one server to another and have to lookup what the host-names are? Do you want to rsync between local and remote host easily with a a simple command? Then, read-on.
# connect ssh email@example.com # scp scp yourfile firstname.lastname@example.org:/path/to/destination/ # rsync rsync -e 'ssh -c aes128-ctr' -rts your_folder email@example.com:/path/to/destination/
As you can see, if you have a bunch of hosts, it gets really hairy to retype them everytime you want to do any of these things.
Create a config file under the ~/.ssh directory, with the short name for these host-names. Then you can simply connect to the server by using the short name instead of the full host-name!
First, edit the file
vi ~/.ssh/config Shortcuts for SSH hosts
and add the details:
Host sweet Hostname clustername.hostdomain.dept.edu User username ForwardX11 yes Host sugary Hostname anothercluster.hostdomain.dept.edu User username ForwardX11 yes
Set permissions straight:
chmod 600 ~/.ssh/config
Now, have fun! the above commands can now be done using:
# connect ssh sweet # scp scp yourfile sweet:/path/to/destination/ # rsync rsync -e 'ssh -c aes128-ctr' -rts your_folder sweet:/path/to/destination/
You can read more about the config by opening the man page:
Hope this trick will make your life little easier!