Me in IT UNIX/Linux consultancy

Besides the questions answered during the installation, go to Site information (admin/settings/site-information) and change a few settings.

First you will find what your have set earlier during the installation.

1. Name This are the few words that are displayed in the title and on top of the website. This depends on the theme, some themes react different. This field could be something like "Example" or "Robert's blog" or "Enterprise XYZ". Think of this name carefully, it's indexed heavily by search engines.
2. E-mail address When the system would like to inform you about something, it uses this address. Likely your address, maybe the webmasters address.

New settings that are worth looking at are these:

1. Slogan The words that could be displayed (depending on the theme) on top of the page. Think of these words carefully too, just like the name. Examples are: "The best engines available" or "Solutions that work" or "Handcrafted paintings from Africa".
2. Footer Message The message that is displayed on each bottom. Maybe a copyright notice, maybe contact information.
3. Anonymous user Don't change this one, the default (Anonymous) is fine.
4. Front page This is the page that you would like users to start navigating. For 99% of the website the default (node) is fine. Maybe you are writing a book, then you might change this to "book". For image galleries "image" could be better.

Save it, you are almost ready to publish content.