ssh is most know remote administration tools while managing linux servers, so I use it too. While connecting any server that I manage, I use several parameters for individual server. Every time typing all the parameters is difficult and it can cause several errors like forgetting or mistyping.
Hence I need some workarounds. Of course the most easy and known workarround: ./ssh/config
This configuration file gives host based parameter specifying for ssh connections. The most three parameters I used are Host,User and IdentityFile. There is also some tricks for Host keyword. While addressing a network address group you should not type:
You should type: