If you’re a developer you probably find yourself connecting to servers over ssh several times each day. Remembering the server address, port, user and password can be hard - but it doesn’t have to be.
You might find yourself needing to use the following to get into a server:
$ ssh -p 3241 firstname.lastname@example.org
Then you have to remember (or maybe even lookup) the password. It’s pretty tedious and time consuming. You could create a bash alias for each server but it’s not ideal; there’s a better way.
Within this file you can define the hostname, user and port of a server and associate it to a short name like
The syntax us fairly straightforward, here’s an alias based on the previous example.
host mainserver hostname somehost-532242.long.example.org user james port 3241
Now if you want to connect, you just need to type:
$ ssh mainserver
Much easier to remember. As an added bonus,
scp also observes the alias so transferring files is now pretty simple.
# transfers access.log from the server to the current directory $ scp mainserver:/var/log/access.log .
I’ve put together a set of ruby scripts which makes it easy to add, delete and list the aliases in
Installation is simple:
$ git clone git://github.com/jamesmoss/ssh-alias.git
$ cd ssh-alias
$ chmod +x ./*
You’ll also obviously need ruby installed. It comes with OS X by default.
To add a host run
./ssh-alias-new.rb and follow the prompts. The script also takes care of transferring your public key to the server so you won’t have to re-enter your password every time you connect.
If you want to remove an alias use
./ssh-alias-delete.rb and follow the prompts.
./ssh-alias-list.rb will print a list of every alias you’ve got setup.
The code is up on github if you want to fork or send a pull request. This is my first proper ruby project, so go easy on me.