how can restore commands.cfg file in nagios server

[baber]

dear all
Hi

i have appear a bad problem now i see all of my data in commands.cfg file has been deleted
cat /usr/local/nagios/etc/objects/commands.cfg

that is empty

is there any place in nagios that had or get a backup from that ?

how can i restore that ?
Now i did not restart nagios service because now if restart that it will not work
i don't have any backup from server

BR

[dwhitfield]

What's the output of ls -la /usr/local/nagios/etc/objects/? Also, let's try find / -name commands.cfg. I'm suspecting it got moved or renamed.

While we're at it, can you PM me or post the output of history from both root and nagios users. Scrub if you must.

[baber]

What's the output of ls -la /usr/local/nagios/etc/objects/? Also, let's try find / -name commands.cfg. I'm suspecting it got moved or renamed.

While we're at it, can you PM me or post the output of history from both root and nagios users. Scrub if you must.

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total 108
drwxrwxr-x. 2 nagios nagios  4096 Dec  2 11:40 .
drwxrwxr-x. 8 nagios nagios  4096 Nov 27 00:16 ..
-rw-rw-r--. 1 nagios nagios     0 Dec  2 12:44 commands.cfg
-rw-rw-r--. 1 nagios nagios  7688 May 26  2016 commands.cfg~
-rw-rw-r--. 1 nagios nagios  2147 Jul 30 06:44 contacts.cfg
-rw-rw-r--. 1 nagios nagios  2138 May 26  2016 contacts.cfg~
-rw-r--r--. 1 root   root     979 Aug 10 05:31 hostgroup.cfg
-rw-rw-r--. 1 nagios nagios  5375 May 26  2016 localhost.cfg
-rw-rw-r--. 1 nagios nagios  5375 May 26  2016 localhost.cfg~
-rw-rw-r--. 1 nagios nagios  3096 May 26  2016 printer.cfg
-rw-rw-r--. 1 nagios nagios  3096 May 26  2016 printer.cfg~
-rw-rw-r--. 1 nagios nagios  3265 May 26  2016 switch.cfg
-rw-rw-r--. 1 nagios nagios  3265 May 26  2016 switch.cfg~
-rw-rw-r--. 1 nagios nagios 17284 Aug 10 03:03 templates.cfg
-rw-rw-r--. 1 nagios nagios 10621 May 26  2016 templates.cfg~
-rw-rw-r--. 1 nagios nagios  3180 May 26  2016 timeperiods.cfg
-rw-rw-r--. 1 nagios nagios  3180 May 26  2016 timeperiods.cfg~
-rw-rw-r--. 1 nagios nagios  3991 May 26  2016 windows.cfg
-rw-rw-r--. 1 nagios nagios  3991 May 26  2016 windows.cfg~

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find / -name commands.cfg
/usr/local/nagios/etc/objects/commands.cfg

[dwhitfield]

Is commands.cfg~ just the original template?

Also, it might be on the way, but I didn't get a PM of the two history commands. You can post them here of course, but if you PM, just update the post.

Last question for this round: is this the same server that had the check_by_ssh issue? I can't remember if you had multiple nagios servers. I seem to remember you are managing something like 150 hosts.

UPDATE: history command received and shared with techs

[baber]

Is commands.cfg~ just the original template?

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yes

Also, it might be on the way, but I didn't get a PM of the two history commands. You can post them here of course, but if you PM, just update the post.

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i have send history commands 

Last question for this round: is this the same server that had the check_by_ssh issue? I can't remember if you had multiple nagios servers. I seem to remember you are managing something like 150 hosts.

no i just have one nagios server and more than 120 hosts that monitored by nagios server commandcfg file data has been removed from nagios server

untill now i did not restart nagios server because if rstart that nagios will not work now is there any temo command.cfg file before nagios restart that i restore it ?

because that is difficult i can not do changes untill commands.cfg file restored



BR

[dwhitfield]

When you looked at commands.cfg as root in vi (vi /usr/local/nagios/etc/objects/commands.cfg), was that before or after the issue?

I notice the next two commands are

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  999  service nagios restart
 1000  cat /usr/local/nagios/etc/objects/commands.cfg

so my assumption is you restarted the service to get your new commands.cfg, then something went wrong so went to look at what was going on in commands.cfg and noticed nothing was there.

Is that correct?

[baber]

When you looked at commands.cfg as root in vi (vi /usr/local/nagios/etc/objects/commands.cfg), was that before or after the issue?

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I can not remember this

I notice the next two commands are

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  999  service nagios restart
 1000  cat /usr/local/nagios/etc/objects/commands.cfg

so my assumption is you restarted the service to get your new commands.cfg, then something went wrong so went to look at what was going on in commands.cfg and noticed nothing was there.

Is that correct?

Yes i am sure did not delete content of commands.cfg file but now i am confused there is not any temp file from command.cfg because now that is working but sure if restart service it will be out of work

[dwhitfield]

What's the output of df -T | awk '{print $1,$2,$NF}' | grep "^/dev"

We are done for the day, but you probably want to look into zero-length file issues over the weekend. Did the server lose power? If this is on network storage, did you lose network connectivity?

One last question: are you the only admin on the server?

[baber]

What's the output of df -T | awk '{print $1,$2,$NF}' | grep "^/dev"

We are done for the day, but you probably want to look into zero-length file issues over the weekend. Did the server lose power? If this is on network storage, did you lose network connectivity?

One last question: are you the only admin on the server?

Yes just i am admin server

Yes i suddenly lost the network connectivity and after that command.cfg file was zero because i was not in my office and remoted to my office for work on nagios

[dwhitfield]

Unfortunately, we don't have a tool for parsing this, but all the commands.cfg information should be in your /usr/local/nagios/var/objects.cache. If you need additional help restoring the information, please PM me your objects.cache file.