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| guyos |
 Posted: Wed Jan 04, 2006 10:41 am Post subject: Problem creatinchannel between QM on Windows and QM on Linux |
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Novice
Joined: 04 Jan 2006
Posts: 24
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I have a QM on a Windows XP and another on a Linux (RedHat4) and trying to channel them.
Linux sender channel to the Windows works but the opposite doesnt. I have checked the naming of the channels and transmission queues, the listener etc. and all is configured correctly (not the first time I create channels).
My feeling is that it is network related although ping works on both sides.
Any idea on what else to check or how to find out the reason why the sender channel from Windows to Linux doesn't start?
Thanks |
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| jefflowrey |
| Posted: Wed Jan 04, 2006 10:45 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Look in the error logs on the windows machine for what it reports for why the channel doesn't start.
Confirm that a telnet to the listener port from the windows machine succeeds (ping is not enough).
_________________
I am *not* the model of the modern major general. |
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| jed |
| Posted: Wed Jan 04, 2006 12:54 pm Post subject: |
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Centurion
Joined: 08 Jan 2004
Posts: 118
Location: MI, USA
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Ping isn't enough... It will only show that the XP can detect the connection to the LINUX machine. As per Jeff's email, try doing a telnet from XP to LINUX and vice versa.
Can you tell us what MQ version you have on both OS and what fixpacks?
What does the error logs show tell you?
Are the channels existing before or are they newly created channels?
Is the channel listener on the XP side running and configured properly?
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Jed |
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| guyos |
| Posted: Thu Jan 05, 2006 7:00 am Post subject: Channel started working |
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Novice
Joined: 04 Jan 2006
Posts: 24
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Ping isnt enough - telnet didnt work and so realized I didnt have a telnet server on Linux. After setting it up the channel started successfully.
Thanks for the tip! |
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| jefflowrey |
| Posted: Thu Jan 05, 2006 7:21 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Um.
You didn't need a telnet server anywhere.
You merely needed to use the telnet client to attempt to connect to the MQ listener port.
If you could do that, then you would know that the network was not the problem.
So setting up a telnet server wouldn't fix anything with MQ at all. Except if you had to do some networking changes to ensure that the telnet server could be reached, and coincidentally fixed whatever problem with the network was breaking MQ.
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I am *not* the model of the modern major general. |
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| guyos |
| Posted: Thu Jan 05, 2006 7:26 am Post subject: Telnet |
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Novice
Joined: 04 Jan 2006
Posts: 24
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Yep - you are right - not sure exactly what I did - got help here.
I think it was something to do with the iptables |
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| jefflowrey |
| Posted: Thu Jan 05, 2006 7:29 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Gosh. You must have enabled the built-in Linux firewall, and then forgotten that you needed to open up the MQ Listener port.
First rule of troubleshooting channel problems - ALWAYS check the firewall. TWICE.
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