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It all comes back to transaction reliability.

If your goal is to make sure your ISP is not down then ping something
big like google.com. If you want to make sure that Veriphone's network
infrastructure is not down the ping payware_server.veriphone.com. If
you want to make sure the Payware web services are not down then create
an HTTP connection to payware_server.veriphone.com (assuming this is
done with HTTP post). All of these methods are unreliable because the
connection could drop any time. At that point it is the client's
responsibility to retransmit the transaction.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Dennis Lovelady
Sent: Wednesday, January 20, 2010 11:49 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Internet Connection Sensor

And that's something to keep in mind. For example you could ping our
domino server GDISYS01. But that ping would be returned by the i it
is
running on (GDISYS). Even if the domino server were down. So I agree
with the mysterious author "ibm" that opening a socket to the service
itself would be more advantageous.

Why is that an issue if the only goal is to determine whether you have a
connection to the server? Did I miss something?

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"I found your essay to be good and original. However, the part that was
original was not good and the part that was good was not original."
-- Samuel Johnson




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