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Type:
Bug
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Status: Resolved (View Workflow)
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Priority:
Critical
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Resolution: Fixed
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Affects Version/s: 15.0.2
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Fix Version/s: 18.0.0
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Component/s: Polling / Monitors / Outages
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Security Level: Default (Default Security Scheme)
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Labels:None
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Environment:Debian 7
Hi,
When I want to check a mail server with service="SMTP" OpenNMS keeps telling me that the service is down "Did not receive expected response within timeout timeout". I traced the problem and saw, that OpenNMS stop the communication after the first answer of the SMTP server.
On my server the first answer ist "220-ESMTP ..." and a CR.
After 3 seconds postfix continues with a "220 ESMTP ..." and CRLF.
According to the RFC clients have to wait until the CRLF is sent. OpenNMS does not wait. So it sees the wrong banner.
I have to reconfigure my postfix to make an exeption for my opennms server and to deliver the correct banner from the start.
I would be nice, if the problem could be fixed within OpenNMS.
Michael.
