[linux-help] Re: Ethernet problem

[Steven Saner <ssaner@xxxxxxxxxxxxxxx>]

On Fri, Sep 01, 2000 at 01:14:04PM -0500, Ryan Claycamp wrote:
> At 12:17 PM 9/1/2000 -0500, you wrote:
> >>5. Can you establish any type of connection between the two, in either
> >>    direction? Like telnet, ssh, or something else?
> >
> >Everyone, except cad1, can talk to mail.  Telnet is turned off, but ssh, 
> >pop, ping, etc. all get to and from mail.  I tricked cad1 into talking to 
> >mail by sshing into cad2 and then sshing into mail.  Mail cannot talk to 
> >cad1.  I just discovered that mail must think it is cad1.  I sshed from 
> >mail to cad1 and got mail's login screen and my directory on 
> >mail.  Depending on how cad1 is "feeling" connections to it can be made, 
> >but get dropped in a short time.  A minute or two later they can be made 
> >again.
> 
> The part about mail thinking it is cad1 got me wondering if mail was really 
> pinging cad1.  It is not.  I watched net traffic and nothing left mail 
> while it pinged and heard from cad1.  I don't know what that means or how 
> to fix it.  Any ideas?
> 
> Ryan


I would start by making sure that every machine has its correct IP
address. Don't simply look at the config file and see what IP address
it is supposed to have, rather do an ifconfig as root and see what IP
address it is using.

Then study you hosts file on all the machines to make sure that they
all match with each other.

As was mentioned in another post, this sounds like either a host name
resoultion problem, or an IP problem (two machines having the same
address).

Steve

-- This is the linux-help@xxxxxxxxx list.  To unsubscribe,
visit http://tmp2.complete.org/cgi-bin/listargate-aclug.cgi