[svlug] Router Pains, a Firewall and a Server

[Lord Sauron]

What the heck do you mean by "board?"

On 11/5/06, Sargun Dhillon <xbmodder at gmail.com> wrote:
> Design the network the way I showed it here. The board0 will be monitoring
> power provided to the server. When the server is using power it'll bridge
> the connection from the switch to server, and prod board1 to bridge server
> to cable. If the power drops, then it'll bridge the connection through the
> router.
>
>
> On 11/5/06, Lord Sauron <lordsauronthegreat at gmail.com> wrote:
> >
> > On 11/5/06, John Conover <conover at rahul.net> wrote:
> > > Lord Sauron writes:
> > > > The way my home network is configured, there is:
> > > >
> > > > Cable Modem
> > > >     |
> > > > Network switch
> > > >     +---------------------------------\
> > > > Router                              Server
> > > >     |
> > > > Printers, the rest of the network
> > > >
> > > > Sorry for the ASCII art.  My issue is that my server isn't connecting
> to the
> > > > internet.  I know that my router is set up like a DHCP server, so it
> hands
> > > > out IP adresses and things like that.  It also is a firewall, which
> blocks
> > > > traffic that comes in for my server.  That's why I added the switch,
> to try
> > > > and bypass the router (and the firewall).  However, now the server
> lacks the
> > > > DHCP server it was connecting to (I had it set up with a Dynamic DNS
> > > > service).
> > > >
> > >
> > > Just as a suggestion, Lord, why not put your server on the other side
> > > of the router, (and eliminate the switch,) and use port forwarding in
> > > the router to forward only packets of interest to the server, (like,
> > > maybe, port 80 for web pages, 20/21 for ftp, etc.); that way, the
> > > router/FW will add some protection to your server, too, (blocking the
> > > ports you don't use,) and your server can use your local LAN private
> > > network DHCP to get its IP address.
> >
> > Interesting idea.  I'll read my router's manual and see if I can find
> > a solution.
> >
> > > If you absolutely MUST expose all ports on your server to the
> > > Internet, (and you are certain that your cable ISP will provide you
> > > more than one IP address-which might be your problem, too,) then look
> > > at your /etc/resolv.conf file and make sure its compatible with your
> > > cable ISP provider, (make sure the nameserver IP address(es) are the
> > > ones listed on your cable ISP provider's DHCP setup pages.)
> >
> > Comcast isn't terribly excited about people hosting servers, so I
> > doubt I'll get another IP in addition to the one for the router.
> >
> > --
> > ========== GCv3.12 ==========
> > GCS d-(++) s+: a? C++ UL+>++++ P+
> > L++ E--- W+(+++) N++ o? K? w--- O? M+
> > V? PS- PE+ Y-(--) PGP- t+++ 5? X R tv-- b+
> >                 DI+++ D+ G e* h- !r !y
> > ========= END GCv3.12 ========
> >
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> >
>
>
>
> --
> Sargun Dhillon
> President
> Atarack Communications, Inc.
> (925)-202-9485
>


-- 
========== GCv3.12 ==========
GCS d-(++) s+: a? C++ UL+>++++ P+
L++ E--- W+(+++) N++ o? K? w--- O? M+
V? PS- PE+ Y-(--) PGP- t+++ 5? X R tv-- b+
                DI+++ D+ G e* h- !r !y
========= END GCv3.12 ========