You can update your department homepage by connecting with SFTP to kuid@hjemmesider.diku.dk:
$ sftp [email protected]
sftp> cd /var/www/hjemmesider.diku.dk/hjemmesider/ansatte/
sftp> put filename.html
You must be on the wired network or the VPN.
Working through sftp is not very pleasant, but you can also use
sshfs to mount the remote file system locally:
$ mkdir -p hjemmesider
$ sshfs [email protected]:/ hjemmesider/
Then you can edit your homepage using your normal text editor.