how do i configure a different "nick" per server?

New question, for example I want to connect
to efnet as 'nick1' and to freenode as 'nick2'

how do i do that?

I've tried different things and I've only been
able to set my nick globally in the config file
in .irssi/

I want to avoid having to type "/nick nick1"
or "/nick nick2" (or is it "/name", I can't 
remember right now) every time I log in.


 
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