FW: [Gllug] Networking SUSE and Windows

Ian Northeast ian at house-from-hell.demon.co.uk
Sun May 18 19:42:05 UTC 2003

Tom Trainer wrote:
> Thanks to everyone's suggestions I now know:
> ping COMPAQ works (COMPAQ being the Windows machine, with the cable
> modem internet connection);
> ping DELL (from the Windows (Compaq) machine) doesn't work, but I do not
> know if this matters.  I can ping the Dell using its IP address of
> ping smtp.blueyonder.co.uk works
> ping www.blueyonder.co.uk doesn't
> I cannot telnet one machine from the other as, in both cases, the
> connection is refused by the other machine ("actively" refused,
> according to Windows).
> The following commands elicit these responses on the SUSE machine
> (Dell):
> telnet smtp.blueyonder.co.uk    - trying
> timed out
> telnet www.cnn.com              - Name or service not known
> /etc/resolv.config              - No such file or directory
> /etc/hosts                              - Permission denied
> dig blueyonder.co.uk            - <<>>; DiG 9.1.3 <<>> blueyonder.co uk
> ;; global options: printcmd ;; connection timed out; no servers could be
> reached
> ping www.blueyonder.co.uk       - unknown host www.blueyonder.co.uk
> traceroute COMPAQ                       - traceroute to COMPAQ
> (, 30 hops max, 40 byte packets 1 COMPAQ (
> 0.585 ms 0.681 ms 1.533 ms
> traceroute -In COMPAQ           - traceroute to COMPAQ (,
> 30 hops max, 40 byte packets Unable to bind to network interface n:
> Invalid argument.
> Trying to browse to results in "Timed out while
> waiting to connect to".
> Trying to browse to www.blueyonder.co.uk results in "Unknown host
> www.blueyonder.co.uk"
> In summary, I can ping, but not telnet or dig or browse;
> I do not appear to have permission to see etc/hosts and
> etc/resolv.config does not exist;
> Traceroute works, traceroute -In doesn't.
> Anything else I might be doing wrong?

A few observations:

The traceroute in SuSE uses the -I flag for a different thing than some
others - it specifies an interface to trace over not to use ICMP instead
of UDP. So your "-In" fails because there is no interface called "n".
AFAIK there is no way to use ICMP with SuSE's traceroute which is a pity
as it is often useful when dealing with recalcitrant firewalls.

It's /etc/resolv.conf not .config.

To view a file's content you do not just type its name, that means you
want to execute it which makes no sense with /etc/hosts. Use "cat" or

You havn't said much about your basic setup. Is this Windows machine
running ICS?
If so I believe that you have to set the Linux machine up as DHCP, have
you done so?

Regards, Ian

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