<p>First you need to set up <ahref="../computing/keyexchange.html">keys</a> so that you can use ssh.
Until you can do that there is no point in doing anything else. This is <i>particularly difficult</i>
on Windows which requires <ahref="https://rperki.blogspot.com/2015/06/install-puttypageant-on-win-10.html">extra software to be installed and configured</a>.
Allow an afternoon at least to get this bit to work as it is poorly documented.
To get the keys set up on the server you will have to wait for an already-authenticated nerd to do it for you so this is not a quick job.
<p>You have now made sure that your computer will be happy to log on to the server once you have the keys set up (be sure to use the Windows instructions for this, not the Linux of Windows WSL instructions).
<p><em>pagegent</em> is installed along with PuTTy and is what you need to keep your Windows machine talking nicely to the expo server. See <ahref="https://rperki.blogspot.com/2015/06/install-puttypageant-on-win-10.html">pagengt config</a> for how to do this.
<p>Now return to the <ahref="../computing/keyexchange.html">key-pair setup instructions</a> for how to configure the keys using PuTTy.