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Nagios passive checks

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Nagios passive checks

Posted: Thu May 24, 2018 12:48 pm
by neo_infraestructura
Hi Nagios team,

I'm working with two Nagios (one of them is only for background but I keep its configurations update) and I'm trying to make them work with passive checks. I'm following this guide: https://assets.nagios.com/downloads/ncp ... Checks.pdf and I'm having trouble with the NRDP. According to the guide, if I have NagiosXI I should see the information following the link like the image:
nagios1.png
But in One of the Nagios devices I get this message:
nagios2.png
And in the other, I tried to install the NRDP for Nagios Core despite having NagiosXI, and initially worked, but now I get error 500 and I don't know what changed.
nagios3.png
What is the correct way to make it work?

Re: Nagios passive checks

Posted: Thu May 24, 2018 3:14 pm
by npolovenko
Hi,@neo_infraestructura. Are you using a firewall by any chance?
Can you show me the contents of this file?

Code: Select all

cat /etc/httpd/conf.d/nrdp.conf

Re: Nagios passive checks

Posted: Thu May 24, 2018 3:25 pm
by neo_infraestructura
In the first one (the one with permission deny

Code: Select all

[root@NEO-MNG-NAG-TIC nagios]# cat /etc/httpd/conf.d/nrdp.conf
<Directory "/usr/local/nrdp">
#  SSLRequireSSL
   Options None
   AllowOverride None
   Order allow,deny
   Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
#   AuthName "NRDP"
#   AuthType Basic
#   AuthUserFile /usr/local/nrdp/htpasswd.users
#  Require valid-user
</Directory>

Alias /nrdp "/usr/local/nrdp/server"
In the second one with error 500:

Code: Select all

[root@NEO-MNG-NAG-QA ~]# cat /etc/httpd/conf.d/nrdp.conf
Alias /nrdp "/usr/local/nrdp/server"

<Directory "/usr/local/nrdp">
#  SSLRequireSSL
   Options None
   AllowOverride None
   <IfVersion >= 2.3>
      <RequireAll>
         Require all granted
#        Require host 127.0.0.1
#        AuthName "NRDP"
#        AuthType Basic
#        AuthUserFile /usr/local/nrdp/htpasswd.users
#        Require valid-user
      </RequireAll>
   </IfVersion>
   <IfVersion < 2.3>
      Order allow,deny
      Allow from all
#     Order deny,allow
#     Deny from all
#     Allow from 127.0.0.1
#     AuthName "NRDP"
#     AuthType Basic
#     AuthUserFile /usr/local/nrdp/htpasswd.users
#     Require valid-user
   </IfVersion>
</Directory>

Re: Nagios passive checks

Posted: Thu May 24, 2018 3:53 pm
by npolovenko
@neo_infraestructura , Please make a backup of your /etc/httpd/conf.d/nrdp.conf file and replace it with the following configs:

Code: Select all

<Directory "/usr/local/nrdp">
#  SSLRequireSSL
   Options None
   AllowOverride None
   Order allow,deny
   Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
#   AuthName "NRDP"
#   AuthType Basic
#   AuthUserFile /usr/local/nrdp/htpasswd.users
#  Require valid-user
   Require all granted
</Directory>
Then run:

Code: Select all

service httpd restart

Re: Nagios passive checks

Posted: Thu May 24, 2018 4:11 pm
by neo_infraestructura
In the first one the change worked. But in the second one it doesn't respond, and if I try to enter directly to de url http://10.13.0.229/nrdp/ it shows this message:
nagios1.png

Re: Nagios passive checks

Posted: Thu May 24, 2018 4:20 pm
by npolovenko
@neo_infraestructura, On the second server at the top of the file add:

Code: Select all

Alias /nrdp "/usr/local/nrdp/server"
Then restart all services again.
If that doesn't work please show the output of:

Code: Select all

ls -l /usr/local/
On the second server, of course.

Re: Nagios passive checks

Posted: Thu May 24, 2018 4:36 pm
by neo_infraestructura
Now it shows me the HTTP ERROR 500 again...

Code: Select all

[root@NEO-MNG-NAG-QA ~]# ls -l /usr/local/
total 20
drwxr-xr-x.  2 root   root     92 Apr 11 01:59 bin
drwxr-xr-x.  2 root   root      6 Apr 11 01:59 etc
drwxr-xr-x.  2 root   root      6 Apr 11 01:59 games
drwxr-xr-x.  2 root   root      6 Apr 11 01:59 include
drwxr-xr-x.  3 root   root     19 Apr 11 01:59 lib
drwxr-xr-x.  3 root   root     18 Apr 11 01:59 lib64
drwxr-xr-x.  2 root   root      6 Apr 11 01:59 libexec
drwxr-xr-x  13 root   root   4096 Apr  8 08:56 nagios
drwxr-xr-x.  6 root   root   4096 Aug 13  2017 nagiosmobile
drwxr-xr-x  10 nagios nagios   94 Oct 21  2015 nagiosxi
drwxr-xr-x   5 apache apache   65 Oct 21  2015 nagvis
drwxr-xr-x   7 nagios nagios 4096 May  7 17:47 ncpa
drwxr-xr-x   7 nagios nagios 4096 May  3 12:53 nrdp
drwxr-xr-x.  4 root   root     28 Aug 13  2017 nsis
drwxr-xr-x.  2 root   root      6 Apr 11 01:59 sbin
drwxr-xr-x.  6 root   root     58 Apr 11 01:59 share
drwxr-xr-x.  2 root   root      6 Apr 11 01:59 src

Re: Nagios passive checks

Posted: Fri May 25, 2018 11:29 am
by neo_infraestructura
?

Re: Nagios passive checks

Posted: Fri May 25, 2018 12:11 pm
by scottwilkerson
please show the output of the following

Code: Select all

grep nrdp /var/log/httpd/error_log |head -20
Also, have you configured this server for SSL at all?

Re: Nagios passive checks

Posted: Fri May 25, 2018 1:41 pm
by neo_infraestructura
the output:

Code: Select all

[Tue May 22 10:48:19.546585 2018] [:error] [pid 14354] [client 10.7.0.71:51316] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Tue May 22 10:50:46.119264 2018] [:error] [pid 4536] [client 10.7.0.71:51419] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Tue May 22 17:09:00.012076 2018] [:error] [pid 30696] [client 10.7.0.215:60493] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15, referer: http://10.13.0.229/nagiosxi/admin/dtinbound.php
[Tue May 22 17:09:22.609351 2018] [:error] [pid 29436] [client 10.7.0.215:60503] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15, referer: http://10.13.0.229/nagiosxi/admin/dtinbound.php
[Tue May 22 17:09:25.868230 2018] [:error] [pid 20516] [client 10.7.0.215:60506] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Tue May 22 17:10:15.631664 2018] [:error] [pid 6030] [client 10.7.0.215:60526] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15, referer: http://10.13.0.229/nagiosxi/admin/
[Wed May 23 16:25:24.176226 2018] [:error] [pid 15844] [client 10.7.0.215:62350] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15, referer: http://10.13.0.229/nagiosxi/admin/dtinbound.php
[Wed May 23 16:26:34.903726 2018] [:error] [pid 2202] [client 10.7.0.71:52573] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:27:13.479398 2018] [:error] [pid 17486] [client 10.7.0.71:52651] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:27:17.001250 2018] [:error] [pid 10140] [client 10.7.0.71:52650] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:27:19.135735 2018] [:error] [pid 27928] [client 10.7.0.71:52662] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:27:21.224170 2018] [:error] [pid 5958] [client 10.7.0.71:52661] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:27:23.377315 2018] [:error] [pid 28553] [client 10.7.0.71:52649] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:28:01.819386 2018] [:error] [pid 24766] [client 10.7.0.71:52686] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:32:46.739340 2018] [:error] [pid 4786] [client 10.7.0.71:52874] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:33:17.055462 2018] [:error] [pid 10868] [client 10.13.0.50:50585] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 16:50:47.292736 2018] [:error] [pid 2503] [client 10.7.0.215:63369] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
[Wed May 23 17:00:51.256249 2018] [:error] [pid 15478] [client 10.7.0.71:53992] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15, referer: http://10.13.0.229/nagiosxi/admin/dtinbound.php
[Wed May 23 17:00:51.259091 2018] [:error] [pid 14949] [client 10.7.0.71:53996] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15, referer: http://10.13.0.229/nagiosxi/admin/dtinbound.php
[Wed May 23 17:04:18.709153 2018] [:error] [pid 19317] [client 10.3.2.26:40938] PHP Parse error:  syntax error, unexpected ')' in /usr/local/nrdp/server/config.inc.php on line 15
And yes, we ahve configured ssl only for this server, following https://assets.nagios.com/downloads/nag ... 1514908001
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