nagios.cmd permission issue

[faridrossle]

Hi Team,

Lately we have been facing issue where we keep getting this error when our L1 team tries to set scheduled downtime and applying the configuration from Nagios XI console.

As workaround, we have run reset_config_perms.sh and reconfigure_nagios.sh as temporary workaround when issue happen. But is there any potential cause as why this keeps on happening?

[lmiltchev]

Is nagios.cmd being created as a pipe? Run the following command and show the output:

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ls -la /usr/local/nagios/var/rw/nagios.cmd

Are you using SNMP Traps on this machine? There was a bug in old versions of the snmptraphandling.py file which didn't check to make sure the file was a pipe before writing to it. Let's check to see if you have the required entry in this file:

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grep ISFIFO /usr/local/bin/snmptraphandling.py

Also, show the output of the following command:

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grep nag /etc/group

[faridrossle]

Hi, below is the requested output

Is nagios.cmd being created as a pipe? Run the following command and show the output:
CODE: SELECT ALL
ls -la /usr/local/nagios/var/rw/nagios.cmd

Code: Select all

root@hk1pnag1[~] # ls -la /usr/local/nagios/var/rw/nagios.cmd
prw-rw---- 1 nagios nagcmd 0 Jan 30 04:07 /usr/local/nagios/var/rw/nagios.cmd

Are you using SNMP Traps on this machine? There was a bug in old versions of the snmptraphandling.py file which didn't check to make sure the file was a pipe before writing to it. Let's check to see if you have the required entry in this file:
CODE: SELECT ALL
grep ISFIFO /usr/local/bin/snmptraphandling.py

We use NRPE agent, hence no snmp file available

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root@hk1pnag1[/] # grep ISFIFO /usr/local/bin/snmptraphandling.py
grep: /usr/local/bin/snmptraphandling.py: No such file or directory

Also, show the output of the following command:
CODE: SELECT ALL
grep nag /etc/group

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root@hk1pnag1[bin] # grep nag /etc/group
nagios:x:701:nagios,apache
nagcmd:x:702:nagios,apache

[lmiltchev]

Are you experiencing this issue with one user only, some users or all users? How often does this happen?

Let's check a few more permissions - run the following command and show the output:

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ls -lad /usr/local/nagios /usr/local/nagios/var /usr/local/nagios/var/rw

Have you hardened this server or made any changes that could modify the "default" permissions? Is SELinux enabled? Please show the output of the commands below:

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grep nagios /etc/passwd
umask
sestatus

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