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RE: Is it hacking?
From: "Jennifer Fountain" <jfountain () rbinc com>
Date: Wed, 15 Jun 2005 20:10:22 -0400


To disable the error being logged by the kernel changing the following
line:
echo 1 >/proc/sys/net/ipv4/icmp_ignore_bogus_error_responses 

From what I can tell, these aren't usually a result of an attack (but
others will probably have more information.)

But things to check - Is this IP on your network?  Could there be a
problem with that machine?

HTH
-Jenn

-----Original Message-----
From: A Riaz [mailto:ariaz1949 () hotmail com] 
Sent: Wednesday, June 15, 2005 11:38 AM
To: security-basics () securityfocus com
Cc: ariaz1949 () hotmail com
Subject: Is it hacking?

Hello everyone,

I'm getting the following entery in the message log every 5 mins:

kernel: 192.168.1.251 sent an invalid ICMP error to a broadcast.

I'm running Redhat Linux 9. Is it an attempt to hack into the system?
Any advice?

Thanks,

AR

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