Re: ssh authentication
>logged as a normal user I would like to open up X-apps requiring root
As root in root's home directory, make .Xauthority a symbolic link to
your normal user's .Xauthority file (or set the XAUTHORITY environment
variable to the location of that file). Then you can just run X programs
while inside 'su'.
>Launching ssh-keygen resulted in creating a file for the RSA key and a
>prompt for a passphrase. The relating manpage reports a required
>passphrase of at least 512bits.
Key length isn't the same as passphrase length. The recommended
passphrase length in that manpage is at least 10-30 characters.
>How many bits are need for one char on a Intel mashine
8 on virtually every machine these days (anything with a C compiler has
8-bit chars, to start with), though that isn't important to your
Colin Watson [firstname.lastname@example.org]