Natural Blogarithms

A good read from the San Francisco Chronicle:  Algebra - it’s everywhere by Jill Tucker.
Algebra, says Devlin, is a language, a very precise language written in symbols, and it’s everywhere: in nearly all electronic devices, every statistic and each Internet search engine - and, indeed, in every train leaving Boston.
"You can store information using it. [...]

I had to solve two problems for myself today.  I am posting my solutions here, mainly for my own reference but maybe somebody out there might have the same issues to be solved.
The first problem I faced was installing a network printer so that it would be available to all users on that machine.  [...]