SSH configuration override the default username

Question

Is it possible to configure ssh to know what my username should be   By default it uses the current username  which is not correct in my case   I m on a loaner laptop  and my username is loaner  but I want to tell ssh that my username is buck   Bonus points  my username at home is bgolemon  If I could configure the username per-host that would be even better

User · Answer

man ssh config says     User    Specifies the user to log in as   This can be useful when a   different user name is used on different machines   This saves the                trouble of having to remember to give the user name on the command line

User · Answer

Create a file called config inside    ssh  Inside the file you can add   Host       User buck   Or add  Host example     HostName example net     User buck   The second example will set a username and is hostname specific  while the first example sets a username only  And when you use the second one you don t need to use ssh example net  ssh example will be enough

User · Answer

If you only want to ssh a few times  such as on a borrowed or shared computer  try    ssh buck hostname   or  ssh -l buck hostname

User · Answer

You can use a shortcut  Create a  bashrc file in your home directory  In there  you can add the following   alias sshb  ssh buck host    To make the alias available in your terminal  you can either close and open your terminal  or run  source    bashrc   Then you can connect by just typing in   sshb

User · Answer

There is a Ruby gem that interfaces your ssh configuration file which is called sshez   All you have to do is sshez  lt alias gt  username example com -p  lt port-number gt   and then you can connect using ssh  lt alias gt   It is also useful since you can list your aliases using sshez list and can easily remove them using sshez remove alias

User · Answer

If you have multiple references to a particular variable i e  User or IdentityFile  the first entry in the ssh config file always takes precedence  if you want something specific then put it in first  anything generic put it at the bottom

[unix] SSH configuration: override the default username

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Examples related to ssh-config