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MQSeries.net Forum Index » General IBM MQ Support » BlockIP2 vs CHLAUTH pros & cons

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kordi
PostPosted: Mon Nov 03, 2025 2:44 am    Post subject: BlockIP2 vs CHLAUTH pros & cons Reply with quote

Centurion

Joined: 28 May 2012
Posts: 147
Location: PL
Hi guys,

What would be the biggest pros and cons to switch from BlockIP to CHLAUTH?

BlockIP2 has been stopped developed in 2015 if I am not mistaken. Most of the BlockIP2 fuctionality has been implemented into CHLAUTH which is part of IBM MQ product and therefore we may expect all bugs fixed and new featuress implemented with new MQ versions. We do not need to worry abt BlockIP config files. One typo in BlockIP config and we have a problem with all connections.

But maybe someone has a good arguments for using BlockIP2 too?
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hughson
PostPosted: Thu Nov 06, 2025 2:47 am    Post subject: Reply with quote

Padawan

Joined: 09 May 2013
Posts: 1968
Location: Bay of Plenty, New Zealand
This article Comparing BlockIP2 with Channel Authentication Records for WebSphere MQ Security contains a good comparison table at the end.

N.B. Was written a while back and the original link no longer works, but the Way Back Machine still had it.

The main item I've heard people mention for staying with BlockIP was the logging of all connections (successful and failed).

With the introduction of Positive Authority Events in IBM MQ V9.4.3, that might be the last reason knocked on the head.

Cheers,
Morag
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