I am not exactly sure what icmp is. When I looked at redhats description
of it, it didn't sound like it would be something that needs to be opened
up on a firewall, but someone told me that it should and never said
why. Can anybody tell me if I should open up icmp on my firewall in front
of
ICMP is the service that allows others to ping your machine.
Richard Humphrey
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Steve Buehler
Sent: Thursday, March 27, 2003 10:04 AM
To: [EMAIL PROTECTED]
Subject: redhat linux icmp and a firewall
I am
If you allow your fw to answer icmp packets, then it will respond to
pings. Not allowing them is a way of making your host appear to not
exist thus being a little more secure. Of course, if someone port scans
you, they'll get a response to whatever is port is open.
JAV
On Thu, 2003-03-27 at
On Thu, Mar 27, 2003 at 10:10:15AM -0600, Richard Humphrey wrote:
ICMP is the service that allows others to ping your machine.
ICMP is much more than this. ICMP groups a lot of control messages that are
needed for some aspects of IP based protocols, as well as improving on
others. Ping is just
Steve Buehler wrote:
I am not exactly sure what icmp is. When I looked at redhats
description of it, it didn't sound like it would be something that needs
to be opened up on a firewall, but someone told me that it should and
never said why. Can anybody tell me if I should open up icmp on my
Steve Buehler wrote:
I am not exactly sure what icmp is. When I looked at redhats
description of it, it didn't sound like it would be something that
needs to be opened up on a firewall, but someone told me that it
should and never said why. Can anybody tell me if I should open up
icmp on my
