Here are some files available for free download. They are script, tutorials, programs, written by me.
Where not differently specified they’re all available for free download. So check ‘em out!

Sysadmin – Network management
Here are some little tutorials for system administration. Useful config files for some daemons in GNU/Linux environment (with some modifications they can be applied to HP-UX, Solaris, MacOS X or other *nix-based distros). This “tutorials” summarize how to write the config files of some important servers like BIND or Sendmail. They contain very basic information, you need to be a little used to the arguments this tutorials are about. This info are written in Italian, I hope to rewrite them soon in English. You can download them or redistribute or modify them for free, You have only to add my name and my e-mail addresses contained in this documents.