Yasnippet example for ssh hosts configuration
I manage or help managing a lot of unix servers around the net, they all have one thing in common: they use ssh, but several different hostnames, IP address and usernames. Sometimes I have two or three usernames for a single box, for example: personal username, deploy and root.
To avoid having to remember all those different configurations I do a heavy use of the ~/.ssh/config file, to define host aliases. Here are some examples:
# Defined in ~/.ssh/config
Host example
Hostname example.com
User root
Host example-deploy
Hostname example.com
User deploy
FordwardAgent yes
Host example-admin-console
Hostname 192.168.100.230
User admin
Port 2330
Then I can type in console:
$ ssh example
$ ssh example-deploy
$ ssh example-admin-console
Here is a simple yasnippet to add new host aliases in ~/.ssh/config file when using emacs.
# -*- mode: snippet -*-
# contributor: Jorge Calás Lozano <calas@railsdog.com>
# name: ssh-host
# key: host
# group: ssh
# expand-env: ((yas/indent-line 'fixed) (yas/wrap-around-region 'nil))
# --
Host ${1:short-name}
Hostname ${2:hostname}
User ${3:username}
ForwardAgent ${4:$$(yas/choose-value '("yes" "no"))}
${5:Port ${6:22}}
${7:host}$0
This is very small set of the options you can set. If you want to see what else you can configure in you ssh config file go ahead and type man ssh-config in your console.