Unix administration books?

Question

Books

Hello! Lately I've been interested in administration of Unix OS, in particular Debian, FreeBSD. Accordingly, there is a need for good books. At the moment, I only have the "Linux Administrator's Guide" (Evi Nemeth) and "Unix in the original" (Yuri Magda). Excellent books, but still I feel the need for something else, no less professional. The most interesting is network administration, working with protocols, firewalls, proxy servers, etc. What can habrasoobshchestvo advise?

Answer 1

UNIX. System Administrator's Guide. For professionals (Evi Nemeth, Garth Snyder, Trent Hein)
Costs about 500 rubles

Answer 2

Explanatory book
C. Hunt. TCP/IP Network Administration
Russian: TCP/IP. Network Administration, 3rd edition, Craig Hunt
Emphasis on *nixes and more on top-level protocols.

Answer 3

freebsd has a nice handbook, in english and russian .
Just as good, a textbook for universities Oliferov "computer networks" . 4th edition is up to date.
and probably manuals on preparation for cisco certification .