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MQSeries.net Forum Index » IBM MQ Security » Block RFHUtil Connections from Clients

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anil kumar
PostPosted: Wed May 26, 2021 5:39 am    Post subject: Block RFHUtil Connections from Clients Reply with quote

Voyager

Joined: 22 Jan 2017
Posts: 98
Location: India
few our clients are using RFHUtil and often they are doing Purge on the Queue.

is there a way to stop them/reject the connections that are coming from RFH util or queue manager does not differentiate it as it thinks RFHUtil as any other MQ client as it uses WebSphere MQ C client.
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markt
PostPosted: Wed May 26, 2021 5:54 am    Post subject: Reply with quote

Knight

Joined: 14 May 2002
Posts: 508
And if there were such a way, what happens when I
Code:

rename rfhutil.exe myprog.exe


Doing a CLEAR QL(q) MQSC or PCF command requires "clr" authority for the user. But that assumes that is how a queue is being cleaned.

RFHUtil does it the other way, to avoid any "in-use" errors, by looping round an MQGET with a zero length buffer. So there's no way to stop that other than disallowing MQGET entirely.
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anil kumar
PostPosted: Wed May 26, 2021 6:03 am    Post subject: Reply with quote

Voyager

Joined: 22 Jan 2017
Posts: 98
Location: India
Yeah Even I thought such case, I will check their access levels on queue obj authority.
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