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Syslog data source and Splunk 5.0.3 on Windows 2008

Path Finder

After the upgrade to Splunk 5.0.3, my syslog data sources suddenly stopped to work. Using MS Network Monitor and Wireshark, I am able to see syslog packets reaching the server. Upgrading to 5.0.4 did not resolve the issue.

Splunk is installed on a Windows 2008 R2 machine.

Anyone experiencing the same problem?

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Re: Syslog data source and Splunk 5.0.3 on Windows 2008

SplunkTrust
SplunkTrust

Can you verify your inputs? Did you make changes in a default/inputs.conf file? They may have been overwritten. Does the input appear in the manager?

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Re: Syslog data source and Splunk 5.0.3 on Windows 2008

Path Finder

Hi alacercogitatus, thank you for your answer. I never change conf files in "default" folders. The input appears in the manager. In addition, I tried to install a syslog server (temporary disabling the input source) and syslog messages were traced correctly.

It seems that Splunk is refusing to collect data for this data source.

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Re: Syslog data source and Splunk 5.0.3 on Windows 2008

Path Finder

I found the problem. The same day of the update, a configuration change had been made in props.conf (under ./etc/system/local). A stanza had been created to match data sent by three specific hosts (just say: serverA, serverB and serverC). There was a typo in this stanza name! It had been defined as:

[host::serverA|host::serverB||host::serverC]

instead of

[host::serverA|host::serverB|host::serverC]

The double "||" caused a "match-all" situation. In addition, this stanza has a conditional redirect of all the events, with the exception of the required ones, to the null queue. All the syslog events, as a result, were discarded!

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