Hello

I have been using Linux for quite a while and I am trying to learn as much
as possible by reading books.

I would like to read complete books not just covering one linux distro but
common things in all of them that probably were carried over from unix. By
this I mean not mainly unix but materials that will make be capable of
dealing with almost any distro.

I would like the books to include one of the following:

1- Linux & Unix Commands(Specially those that are very useful).
2- Linux Networking & Firewall(Iptables).
3- Backing up.
4- Setup Important applications(Samba,Apache,Postfix or any MTA,etc).
5- Scripting(Awk, Sed, Perl).
6- Kernel Compiling & Hacking.
7- Linux Security.
8- NFS
9- NIS
10-SNMP & Network Centralized Managment.
11- Anything I missed that helps for the Certification and would prepare
m to help other persons in these groups.

I have Running Linux 3rd edition, Linux in a nutshell. I would like to
hear about the best of the best.

Thanks for your time,

Iván C. Filpo