Re: Hi, having trouble with networking

From: tom (lfs_at_home.com)
Date: 11/14/04 

Date: Sun, 14 Nov 2004 18:02:28 GMT

"Tauno Voipio" <tauno.voipio@iki.fi.NOSPAM.invalid> wrote in message
news:QkLld.275$2L2.264@read3.inet.fi...
> Mmm_moo_cows wrote:
> > Hello,
> >
> > Sorry if this is a well worn topic, but been searching out there for
> > the past week and I'm getting nowhere,dont want to go back to windows
> > XP!
> >
> > Could anyone reccomend a good (basic) networking tutorial for a
> > beginner in linux. I have setup modem and internet, but would like to
> > share internet to 4 windows XP pc's and I amd completely stuck and
> > tutorials on the web I have found just dont help.
> >
> > In a bit more detail,
> >
> > New to linux and having a bit of trouble networking. I'm in a student
> > house, 4pc's running win xp and a server pc. This server pc was
> > sharing the internet connection (adsl) and acting as a fileserver.
> > However, with windows XP I'm having to reinstall it every month
> > becuase it just slows down after a bit then crashes all the time (no
> > idea why) which is why I want to change it to a unix/linux server.
> >
> > So, bought redhat (not too sure which version, a new one maybe 9 (has
> > iptables)). Managed to install it fine. Got some drivers for my
> > modem (bt voyager -EciADSL drivers from http://eciadsl.flashtux.org/)
> > and got all that setup, so I now have the internet installed and
> > working.
> >
> > My trouble lies in basic networking and sharing the internet
> > connection. My network car has been recognised by redhat and it seems
> > to be installed.
> >
> > I ran netconfig from the console and assigned it 192.168.0.1 adresses
> > with matching gateway etc address (it filled it in one the main ip was
> > entered).
> >
> > however, I cannot seem to ping it from my windows xp machine (I thinlk
> > I havent set it up correctly).
> >
> > So here comes my real problem. Searchin on the internt, news groups
> > and tutorials found a handful of tutorials, but all are different and
> > all have not helped me.
> >
> > So, could anyone recommed any good tutorials, or even better help us
> > in the right direction.
> >
> > Not to sure also about the windows configuration side, but every time
> > I utter the word windows in a search on google I get so many unrelated
> > pages.
> >
> > Thanks for any help.
> >
> > Jon
>
> Networking tutorials:
> ---------------------
>
> Have you waded through the HOWTO documents in the Linux Documentation
> Project (<http://www.tldp.org/>)?
>
> The Networking-Overview-HOWTO is a good starting point.
>
> For a deeper understanding of the TCP/IP networking, my favourites
> are the books by the late W. Richard Stevens (google for the name).
> Be warned: there are thousands of pages to read.
>
> Your server:
> ------------
>
> You are pretty well off if the router computer sees the connection
> to the ISP.
>
> You need two netrwork interfaces in the computer: one for the
> outward Net and the other for the internal shared network.
>
> The outward net IP address and netmask come from the ISP, either
> by DHCP or statically assigned.
>
> The internal network should be picked from the RFC 1918 networks:
>
> 10 0.0.0 to 10.255.255.255
> 172. 16.0.0 to 172. 31.255.255
> 192.168.0.0 to 192.168.255.255
>
> Some ISP's like to use also one of these, usually the 10.x.y.z.
> If this is the case, please pick another. 192.168.123.x is often
> safe to use.
>
> To access the outside world, you need two things in the router:
> - forward packets between internal and external nets,
> - translate internal addresses so they are acceptable
> in the outside network.
>
> The first thing is achieved by enabling forwarding in the router.
>
> The second thing is called IP masquerading or source NAT. The Linux
> iptables handler is able to do it.
>
> There is a third thing needed: firewalling the Microsoft computers,
> so that the external network cannot initiate connections, to keep
> all binary active contents (worms, viruses & co) out.
>
> There is a series of HOWTOs
> <http://www.netfilter.org/documentation/HOWTO/packet-filtering-HOWTO.html>
> about the set-up of iptables.
>
> For file service with Windows units, Linux has to learn
> Microsoftese. The package is called Samba. There are also
> good HOWTOs how to use it.
>
> HTH
>
> --
>
> Tauno Voipio
> tauno voipio (at) iki fi
>

I think the Stevens book is a bit much for this problem.

Perhaps he should also take out a book on quantum
physics so he can understand how the chips work.

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