Description Christina Scheinig 2017-01-25 10:03:58 CET

A customer reported, that he could not trigger nagios to re-schedule a check. He gets the following error message in the external Command Interface:
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Error: Could not stat() command file '/var/lib/nagios3/rw/nagios.cmd'!
The external command file may be missing, Nagios may not be running, and/or Nagios may not be checking external commands.

An error occurred while attempting to commit your command for processing.
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This error is caused by wrong directory permissions, which were set in an update.

The ucr-variable 'nagios/server/checkexternalcmd' is already set to yes. Setting this variable again to yes, the permissions are updated correctly.

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wrong permissions:
root@ucs-master-412:/var/lib/nagios3/rw# ls -lah
insgesamt 8,0K
drwxr-s--- 2 nagios www-data 4,0K Dez 24 23:24 .
drwxr-x--- 4 nagios nagios   4,0K Jan 22 07:25 ..
prw-rw---- 1 nagios www-data    0 Jan 22 08:06 nagios.cmd
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corrected permissions with ucr set nagios/server/checkexternalcmd='yes'
root@ucs-master-412:/var/lib/nagios3/rw# ls -lah
insgesamt 8,0K
drwxr-s--- 2 nagios www-data 4,0K Dez 24 23:24 .
drwxr-x--- 4 nagios www-data 4,0K Jan 22 08:25 ..
prw-rw---- 1 nagios www-data    0 Jan 22 08:06 nagios.cmd