Heya --
Quoth Tesla:
> "A decent book about networking" which would help me understand the
> difference between TCP and UDP and why I should care, and how all
> this stuff relates to my husband's firewall rules. ("Why can't I get
> the time though that network time thingy?" "Because the firewall
> won't let you" is no help :)) Recommendations on such decent books
are
> welcomed.
For the difference between TCP and UDP and how the protocols work,
I just finished O'Reilly's "Internet Core Protocols". It did a decent
job of explaining how the TCP/IP suite works, but it won't let you know
how this relates to the firewall rules -- it pretty much stops at layer
4 (and some 5) of the OSI model. They're supposed to be releasing a
companion volume on application-layer protocols in April. That should
explain how http, ftp, ntp, etc. work, port mapping, things like that.
I'm waiting impatiently for it.
I haven't actually seen a good how-to in print for ipchains and
firewall rules, probably because ipchains is newish and it takes a
while for the books to catch up. The Linux Documentation Project has
the online how-to's, though. If you read "Internet Core Protocols",
the ipchains how-to should make sense afterwards.
Alternately, the Sybex CCNA book does a decent job of explaining
ARP, RARP, subnetting, etc. It's the three-page summary, though, not
the extensive treatment O'Reilly gives it.
> I have some things I would definitely -not- recommend, but I don't
> know whether that's very useful: especially since we all differ in
> what approaches we like. Although the 1000-page book on Debian with
> three useless pages on apt might well piss more than just me off,
Oooh. The "Debian Linux Unleashed!" book? I had that same
problem with that one. $40 and I've yet to find a useful answer in it
that I couldn't get from "Running Linux" faster. Or man apt-get.
Grrrr.
Cheers,
Raven, briefly de-lurking
=====
"How about if we have manticores instead of gender
discrimination?"
-- Neko, on female characters in fantasy novels
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