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Bug 6899 - xntpd screams verbosely about down peers/servers
xntpd screams verbosely about down peers/servers
Product: Red Hat Linux
Classification: Retired
Component: xntp3 (Show other bugs)
All Linux
medium Severity low
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Assigned To: Preston Brown
Depends On:
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Reported: 1999-11-10 17:43 EST by Chris Siebenmann
Modified: 2008-05-01 11:37 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2001-01-19 16:12:20 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Chris Siebenmann 1999-11-10 17:43:29 EST
If you are peering with a machine that goes down, or that
stops running an NTP daemon, you will see screams in your
syslog of the form:
	xntpd[26005]: recvfrom() fd=7: Connection refused
Worse, these are logged with priority LOG_ERR, which is
supposed to mark fairly important problems.

 These exist because Linux + glibc return errors on
recvfrom() that are due to a previous UDP sendto() on
the same socket failing because of various detectable
problems. The xntp3 code is not expecting this to
happen, and thinks that these are real recvfrom()

 These syslog messages are annoying. I've developed a
patch to muzzle them for connection refused, host down,
and host/net unreachables, if people are interested.
Comment 1 Jeff Johnson 1999-11-10 17:48:59 EST
Could you reply to this message with patch attached? Thanks ...
Comment 2 Preston Brown 2001-02-01 12:38:06 EST
closed due to lack of additional feedback, and the fact that this is solved with
newer versions in currently available distributions of Red Hat Linux.

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