LinuxQuestions.org - Any Nagios Gurus?

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Quote:

Originally Posted by rfelsburg (Post 4039663)

Check /var/log/messages not /var/log/nagios3/nagios.log

It's a system error, not a nagios error.

My apologies.

Code:

Jul 18 06:25:01 ODB2 kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul 18 06:25:01 ODB2 rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3125" x-info="http://www.rsyslog.com"] restart

Jul 19 06:25:01 ODB2 kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul 19 06:25:01 ODB2 rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3125" x-info="http://www.rsyslog.com"] restart

Jul 20 06:25:01 ODB2 kernel: imklog 3.18.6, log source = /proc/kmsg started.

Jul 20 06:25:01 ODB2 rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3125" x-info="http://www.rsyslog.com"] restart

Jul 20 12:29:20 ODB2 nagios3: Nagios 3.2.1 starting... (PID=8326)

Jul 20 12:29:20 ODB2 nagios3: Local time is Tue Jul 20 12:29:20 BST 2010

Jul 20 12:29:20 ODB2 nagios3: LOG VERSION: 2.0

Jul 20 12:29:20 ODB2 nagios3: Finished daemonizing... (New PID=8327)

Jul 20 13:13:59 ODB2 nagios3: Caught SIGTERM, shutting down...

Jul 20 13:13:59 ODB2 nagios3: Successfully shutdown... (PID=8327)

Jul 20 17:37:22 ODB2 nagios: Nagios 3.2.1 starting... (PID=29880)

Jul 20 17:37:22 ODB2 nagios: Local time is Tue Jul 20 17:37:22 BST 2010

Jul 20 17:37:22 ODB2 nagios: LOG VERSION: 2.0

Jul 20 17:37:22 ODB2 nagios: Failed to obtain lock on file /usr/local/nagios/var/nagios.lock: Permission denied

Jul 20 17:37:22 ODB2 nagios: Bailing out due to errors encountered while attempting to daemonize... (PID=29880)

Jul 20 17:37:40 ODB2 nagios: Nagios 3.2.1 starting... (PID=29893)

Jul 20 17:37:40 ODB2 nagios: Local time is Tue Jul 20 17:37:40 BST 2010

Jul 20 17:37:40 ODB2 nagios: LOG VERSION: 2.0

Jul 20 17:37:40 ODB2 nagios: Failed to obtain lock on file /usr/local/nagios/var/nagios.lock: Permission denied

Jul 20 17:37:40 ODB2 nagios: Bailing out due to errors encountered while attempting to daemonize... (PID=29893)

Jul 20 17:38:04 ODB2 nagios: Nagios 3.2.1 starting... (PID=29908)

Jul 20 17:38:04 ODB2 nagios: Local time is Tue Jul 20 17:38:04 BST 2010

Jul 20 17:38:04 ODB2 nagios: LOG VERSION: 2.0

Jul 20 17:38:04 ODB2 nagios: Failed to obtain lock on file /usr/local/nagios/var/nagios.lock: Permission denied

Jul 20 17:38:04 ODB2 nagios: Bailing out due to errors encountered while attempting to daemonize... (PID=29908)

lets start with the lock file error and go from there.

Type

Code:

ls -lad /usr/local/nagios/var

and post the output

Code:

drwxrwsr-x 5 nagios nagios 4096 2010-07-20 17:38 /usr/local/nagios/var

Thanks!

Does that mean you got it working?

sorry, no it doesn't. Just posted the output and thanked you for your help.

Gotcha,

Can you run this:

Code:

ls -la /usr/local/nagios/var/nagios.lock

Also, what distro are you running, fedora, centOS, ubuntu...

Quote:

Originally Posted by rfelsburg (Post 4039997)

Gotcha,

Can you run this:

Code:

ls -la /usr/local/nagios/var/nagios.lock

Also, what distro are you running, fedora, centOS, ubuntu...

Code:

-rw-r--r-- 1 root nagios 0 2010-07-20 17:38 /usr/local/nagios/var/nagios.lock

It is Debian Squeeze. Thanks.

the system is debian. this was said in the first post

send the output from

Code:

ls -la /usr/local/nagios/var/

Quote:

Originally Posted by centosboy (Post 4040368)

the system is debian. this was said in the first post

send the output from

Code:

ls -la /usr/local/nagios/var/

Code:

ODB2:/var/log# ls -la /usr/local/nagios/var/

total 40

drwxrwsr-x  5 nagios nagios  4096 2010-07-20 17:38 .

drwxr-sr-x 12 nagios nagios  4096 2010-07-20 14:09 ..

drwxrwsr-x  2 nagios nagios  4096 2010-07-20 12:57 archives

-rw-r--r--  1 root  nagios    0 2010-07-20 17:38 nagios.lock

-rw-r--r--  1 nagios nagios  984 2010-07-20 17:38 nagios.log

-rw-r--r--  1 nagios nagios 12943 2010-07-20 17:38 objects.cache

drwxrwsr-x  2 nagios nagios  4096 2010-07-20 12:57 rw

drwxr-sr-x  3 root  nagios  4096 2010-07-20 12:57 spool

Thanks for your help guys.

Some further information.

Code:

ODB2:/# /etc/init.d/nagios start

Starting nagios:Unknown id: nagiosadmin

chown: invalid user: `nagiosadmin:nagios'

 done.

ODB2:/# /etc/init.d/nagios ?

Usage: nagios {start|stop|restart|reload|force-reload|status|checkconfig}

ODB2:/# /etc/init.d/nagios status

nagios is not running

ODB2:/#

Have you change any user or group before this?
Which user and group you had create at installation time ?

nagios lock file was created with root ownership, but this was yesterday evening...

Code:

-rw-r--r-- 1 root nagios 0 2010-07-20 17:38 nagios.lock

Code:

chown nagios /usr/local/nagios/var/nagios.lock

then restart nagios

Quote:

Originally Posted by centosboy (Post 4040499)

nagios lock file was created with root ownership, but this was yesterday evening...

Code:

-rw-r--r-- 1 root nagios 0 2010-07-20 17:38 nagios.lock

Code:

chown nagios /usr/local/nagios/var/nagios.lock

then restart nagios

Code:

ODB2:/# chown nagios /usr/local/nagios/var/nagios.lock

ODB2:/# /etc/init.d/nagios ?

Usage: nagios {start|stop|restart|reload|force-reload|status|checkconfig}

ODB2:/# /etc/init.d/nagios restart

Running configuration check...done.

Stopping nagios: kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]

done.

Starting nagios:Unknown id: nagiosadmin

chown: invalid user: `nagiosadmin:nagios'

 done.

Bizarre considering I log into Nagios HTTP page using nagiosadmin.

Quote:

Originally Posted by Spuddy (Post 4040501)

Code:

ODB2:/# chown nagios /usr/local/nagios/var/nagios.lock

ODB2:/# /etc/init.d/nagios ?

Usage: nagios {start|stop|restart|reload|force-reload|status|checkconfig}

ODB2:/# /etc/init.d/nagios restart

Running configuration check...done.

Stopping nagios: kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]

done.

Starting nagios:Unknown id: nagiosadmin

chown: invalid user: `nagiosadmin:nagios'

 done.

Bizarre considering I log into Nagios HTTP page using nagiosadmin.

no, not bizarre actually.
htaccess (which is controlling web authentication) doesnt user /etc/passwd to authenticate but
the nagiosadmin user appears to exist in the htpasswd file, but not in the /etc/passwd or /etc/group or /etc/shadow files. Maybe you could confirm this..??

It appears you may have missed a step or 2 when going throught the initial build...?

Hi Spuddy,

I would sugest that you check that you've created the nagios user and group
as following the output of your command ls -la /usr/local/nagios/var/
nagios should run under nagios user and nagios group.

if you did edit your nagios.cfg

Code:

vi /usr/local/nagios/etc/nagios.cfg

and change the nagios_user and nagios_group to nagios

Code:

nagios_user=nagios

nagios_group=nagios

save it and try to restart nagios again.