Date: Sun, 26 Sep 1999 16:50:10 -0400 (EDT) From: William Melanson <wjm@gate.net> To: Allen Cleveland <allenc@mindsieve.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: changing ping output Message-ID: <Pine.A41.4.03.9909261646240.127268-100000@tiwa.gate.net> In-Reply-To: <3.0.5.32.19990925184302.008076f0@mindsieve.com>
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On Sat, 25 Sep 1999, Allen Cleveland wrote:
%
% I'd like to ping an ip address, but only see output when the address
% *doesn't* return a reply, and I'd also like to have the times a reply
% *isn't* returned timestamped.
%
% I just read ping(8) and I don't see a way to turn off the output of replies
% and only see packets that didn't get a reply, nor do I see a way to
% timestamp any of the output. I want to use this to tell me when my
% connection fails, even if I'm not sitting at the computer.
%
% If there is a better way, using another command, or anyone has any ideas in
% general, I'd very much appreciate your input.
%
%
In it's simplest form I'd make a shell script to resemble this:
#!/bin/sh
#
while true
do
if `ping -c 1 ip_address_of_trusted_host >/dev/null 2>&1`; then
sleep 60
else
echo "Hostname_lost_connection `date`" >> /root/results.txt
sleep 60
fi
done
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William J. Melanson CyberGate, Inc. | e.spire Communications
Sr Network Controller Deerfield Beach, FL 33441
Network Operations Center Phone: (954) 429-8080
finger wjm@gate.net PGP public key
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