Nagios change URL

[BradW]

Hello,

Has anyone changed the base URL for accessing Nagios via its Web interface? I would like:

http://localhost/something

instead of:

http://localhost/nagios

to enhance security.

I changed /etc/httpd/conf.d/nagios.conf and url_html_path in /etc/nagios/cgi.cfg. But the links in the left-side frame are not correct. The top two, Home and Documents, work correctly. The rest still have /nagios.

If I leave it defaulted to its original /nagios base URL everything is fine. It almost seems like /nagios is hard-coded.

Any help would be greatly appreciated. Thanks!

Brad

[smr54]

http://nagios.manubulon.com/traducti...configcgi.html

indicates that it's in /etc/nagios/cgi.cfg

There's a section (I'm looking at an older version of nagios, so hopefully it hasn't changed)
URL_HTML_PATH.

The default readds

url_html_path=/nagios


As always back up the file before making changes.

[BradW]

Hi smr,

Are you a Nagios user? And have you tried to change the default URL?

Brad

[smr54]

Yes, I set it up at our workplace to do some basic monitoring, mostly, just to see if servers are up. However, it's an older version, as I mentioned, probably running on CentOS 4.x.

I haven't tried to change the url, it's all on an internal network, so security isn't as much of a concern for us. (Nor do I plan to do so, it's a production system, so, I can't really blithely experiment.) Did you try the method I mentioned above?

[BradW]

Hi smr,

Yes, I did exactly what you posted. No workie. I also posted this question on the Nagios forums with no reply at all.

Brad

[smr54]

Interesting. As mentioned, I really can't try it at work.

If you do get an answer on the nagios forum, please post the result. Even with a bit more intensive googling, that was the only solution that I've found.

[BradW]

Hi smr,

Well, thanks for your help.

Here is one you can look at. I noticed that left frame links in Nagios Core are malformed. The first two, Home and Documents, are fine, but the rest are not:

/nagios/cgi-bin//status.cgi?hostgroup=all&style=hostdetail

I intentionally shortened the above. Each link has an extra '/' after "/cgi-bin/".

I also found a macro substitution bug in .cfg files. While Nagios is nice software, I think it definitely has some bugs.

Brad

[shafiq1988]

Here the answer for your problem

You need to edit cgi.cfg file

#line
url_html_path=/example

then, go to /etc/httpd/conf.d/

edit file nagios.conf

#line
Alias /nagios /usr/local/nagios/share

change to

#line
Alias /example /usr/local/nagios/share

Thanks to Allah for help...

[basos]

In addition to the above locations you have to change to config.inc.php file located in the physical_html_path location defined in the cfg.conf. In centos this is /usr/share/nagios/html/
and change the
$cfg['cgi_base_url']='<you base url as defined in the url_html_path @ cgi.cfs + /cgi-bin>';

Damn bored UI devs, they didn't bother to parse the path from cfg.cgi. Anyway.
Yeah !

[smr54]

Thanks for that. I suspect this will be useful to someone who has to set up nagios, as the official docs can be unclear about many things. Don't know about the devs, but the ones who write the docs--I dunno, they're not that hard for me to understand now, but when I knew nothing about nagios, they had me saying nasty things about them.

If you are concerned about security I wouldn't bother much with changing the url but instead changing the configuration such as:

order deny,allow
deny from all
allow from 127.0.0.1, xxx.xxx.xxx.xxx
AuthType Basic
AuthUserFile /etc/nagios/passwd
AuthName "nagios"
require valid-user

This will ensure only allowed hosts AND those with a valid user name and password have access.

[BradW]

Originally Posted by basos

In addition to the above locations you have to change to config.inc.php file located in the physical_html_path location defined in the cfg.conf. In centos this is /usr/share/nagios/html/
and change the
$cfg['cgi_base_url']='<you base url as defined in the url_html_path @ cgi.cfs + /cgi-bin>';

Damn bored UI devs, they didn't bother to parse the path from cfg.cgi. Anyway.
Yeah !

Thanks for the reply, this was exactly what I was looking for. I, too, suspect this will be helpful to others in the future.

Brad