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Ping: I can't ping machine names!

Ping: I can't ping machine names!

Post by Brian Rank » Fri, 21 Apr 1995 04:00:00



Hello,

This is a very basic question:  I just added an entry in
/etc/hosts.  I can ping the IP address but not the machine
name.  Pinging the machine name produces:
ping: unknown host foobar.com
I can ping any other machine name already in the hosts file.

I'm running SunOS 4.1.3.  Any information appreciated!

Sincerely,

==================================================================
   ___                  ___           _
  ')  )                ')  )         //
  /--/ __  o _  __     /-<   _  __  /<   o __
 /__/_/ (_<_(\_/ /_   /   \_(\_/ /_/  \_<_/ /_

 Brian Rankin

==================================================================

 
 
 
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Ping: I can't ping machine names!

Post by Frank San » Fri, 21 Apr 1995 04:00:00




> Hello,
> This is a very basic question:  I just added an entry in
> /etc/hosts.  I can ping the IP address but not the machine
> name.  Pinging the machine name produces:
> ping: unknown host foobar.com
> I can ping any other machine name already in the hosts file.
> I'm running SunOS 4.1.3.  Any information appreciated!

    I would guess that your system isn't using /etc/hosts for name to IP
resolution.  Is NIS or a DNS nameserver running on your network?

    Another possibility.  Are you typing ping foobar or ping foobar.com.
Try both, and try both in your /etc/hosts.  If some cases work and
others don't it may give you a lead.

---


 
 
 
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Ping: I can't ping machine names!

Post by T. Jason Uck » Fri, 21 Apr 1995 04:00:00


|> Hello,
|>
|> This is a very basic question:  I just added an entry in
|> /etc/hosts.  I can ping the IP address but not the machine
|> name.  Pinging the machine name produces:
|> ping: unknown host foobar.com
|> I can ping any other machine name already in the hosts file.
|>
|> I'm running SunOS 4.1.3.  Any information appreciated!

Check your /etc/resolv.conf.

-Jason
--
T. Jason Ucker  

SGI Direct

 
 
 
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1. Help - can't ping one of my machines (but it can ping me).

Hello Everyone:

I have run accross a very anoying problem.  I have a small network
at home, - cable internet through a linksys router, a couple windows boxes,
and a redhat system used for my mail, webserv, etc.

Now... what i find happening (and not sure what caused it) here it goes...

from my windows PC - I can ping anything outside "i.e. yahoo.com".
from my LINUX box, I can ping anything outside as well.

From my linux box, I can also ping my windows system.
however, from my windows sytem, I cannot for the life of me, ping my linux
box (on its private internal address).

using port forwarding from the router however, I can ping my linux box -
i.e. (from my windows mahcine
I go outside, then come in throught the router and at that point I can hit
the webservice on the linux box,
but I have to go outside first.

Anyone know what could be causing this... I trashed the firewall rules
completly

-  /sbin/ipchains -F

and nothing is there...

This one is bazar!

Thank you everyone
Richard

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