Public DNS server?

[gaf at gaf.blu.org (Jerry Feldman)]

Ok, I'm not an XP expert, but I do have a Linksys BEFW11S4 router. 
If you can ping an external IP address, then your routing seems to be
ok. The XP system should work even with the firewall in place. 
ping itself is a bit strange. First, it uses the ICMP prototol, not TCP
that is used by ftp and telnet. 
Again, the steps that are needed is to make sure that the router is
providing the appropriate connectivity, and I think you have done that. 
Make sure that you can also ping and ftp to your Linux box. That will
establish that the routing tables are ok. Also, if you have SMB
configured on the Linux box, set up a share on the XP, and run smbclient
on the linux box to see if it can see the share. 

I would still want to run a test by connecting the XP box directly to
the cable modem.  (You would need to register your MAC address with AT&T
BB. I use the same MAC address in my router that I do with my main
desktop PC.  

Beyond that I don't know how to proceed since the problems seem to
emanate from the XP box. 


On Thu, 13 Feb 2003 19:25:57 -0500
Duane Morin <dmorin at morinfamily.com> wrote:

> At 10:09 AM 2/13/2003 -0500, Jerry Feldman wrote:
> >Why not run a DNS server on your Linux box inside your network. The
> >use that as your primary DNS server for the XP box.
> 
> Default gateway == router, 192.168.1.1.
> 
> DHCP address is assigned by router (*), and subnet mask is
> 255.255.255.0.
> 
> I think I've confirmed that I've got no external connectivity out of
> the XP box.  Despite the fact that I can ping some known IP machines,
> I timeout when attempting to telnet or ftp to them (including to a
> variety of ports, including 80).  So is it possible
> to have lost outgoing connectivity somewhere between ping and telnet?
> 
> Attempts to telnet, ssh or ftp from the XP box to my internal machines
> is fine.
> 
> I have completely uninstalled Norton virus and firewall.  I also
> apaprently accidentally removed VNC, which I didn't mean to do, but
> now am unable to use this machine to run Xapps from my linux box :-/.
> 
> I will work on putting a dns server onto my linux machine so that I
> can at least get myself running again.  But boy, is this frustrating.
> 
> Duane
> 
> P.S. - Since I have so few machines this machine is almost always .102
> or .103.  For some reason, today it is .109.  My router tells me that
> it is the only dhcp client, though.  Not quite sure what's up with
> that.
> 
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