[ILUG] Ping

[Smith, Graham - Computing Technician]

if you allow traceroute through there is less of a need for ping
requests anyway... 

G.

___________________________
 Graham Smith,
 Network Administrator,
 Department of Computing,
 Institute of Technology,
 Tallaght, Dublin 24
 Phone: + 353 (01) 4042840

-----Original Message-----
From: Keith Power [mailto:power at cs.ucc.ie]
Sent: 19 November 2001 16:45
To: ilug at linux.ie
Subject: Re: [ILUG] Ping


A lot of people nowadays are not allowing ping traffic through their
routers,
since the spread of Nimda and the like which often ping the IP 
neighbourhood of hosts they've infected. Maybe the router in your
organisation has this set for your webserver.

Keith

>On Mon, Nov 19, 2001 at 01:16:36AM -0800, Michael Turley mentioned:
>> anyone know what could stop ping from sending packets
>> (or receiving returned packets) on a functioning web
>> server? Firewall should not be the issue as other
>> boxes (e.g. nameserver can ping through the firewall)?
>> Any help would be appreciated!
>
> Some versions of ping try and do a DNS reverse lookup on the IPs.
>
> Try a "ping -n" instead. If that works, it's your DNS settings that
>aren't working.
>
>Kate
>
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