🚀 go-pugleaf

First of all, thanks to the following folks for working with me
to resolve my problem (my apologies to anyone I may have overlooked):

Georg Schwarz <schwarz@physik.tu-berlin.de>
Jacob Rose <jrose@flyingmouse.com>
Philip Tait <pjt@phxase.allied.com>
Mike Thompson <Mzthompson@aol.com>
Pirie Hart <pirie@u.washington.edu>
Jeff Hewitt <jhewitt@lsf.jaycor.com>


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I received many helpful suggestions. Here's a summary:

OK, be sure that name's in /etc/hosts with the correct IP.
What is the first few lines in your /etc/rc.local, especially the ifconfig
commands there?  What is your IP, netmask and default gateway?
Check you netstat -nr output. Did you change the line in /etc/rc.local that 
has the hostname command? Make sure named & routed are turned off.
What do /etc/networks and /etc/resolv.conf contain?

Perhaps you have a "route add ..." command in /etc/rc.local, which is no
longer valid.  A comparison of the output of "ifconfig ln0" and "netstat
-nr" might help you trace the problem.  ("ln0" may not be correct for
the 2100 - check the "netstat -nr" output to get the correct device
name).

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I checked out all the suggestions. I worked with /etc/hosts & the
rc.local file to get things like I thought they should be. In the end, 
however, I was best able to resolve my problem by running BINDSETUP.
This system had once been a primary nameserver. It was now a client 
of bind only. In BINDSETUP I removed the BIND/Hesiod service from the
system. I then added it back as a client only. I then double-checked
/etc/hosts & rc.local, saw that some slight changes had been made
by BINDSETUP. I made sure I wasn't starting named & routed in rc.local
and I rebooted. This took care of the problem.

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For reference, here's the original question:

Hello again,
  
  I've got a decstation 2100 that we just changed the hostname on.
  We also changed the ip address on it. It's running ultrix 4.3.
  I modified /etc/hosts to make the changes. Now when we boot
  the system I can't even ping it. I get
  
  ping: sendto: network is unreachable

  Any suggestions?

  Thanks,
  Martin Meadows
  Indianapolis, IN.


Thanks again to everyone who pitched in on this!!!