Re: [munin-users] apache_watch_ give an error that no mod watch exists on port 80

[Hai N. Q. <hai...@vs...>]

Hi Mr Bj=F8rn Ruberg,

Sorry for my late reply.

I installed mod_watch following these steps:
- download mod_watch-4.3_apache22_mod.tar.gz
- uncompress and compile them with some edit in Makefile.dso (as =
instruction in http://trac.inetcentral.de/ispcp/wiki/howto_munin)
- add this line in httpd.conf:
	LoadModule watch_module /usr/lib/apache2/modules/mod_watch.so
- when I restart apache, it says no error

As I put it in httpd.conf, it's supposed to load when restarting apache, =
if you know another way to check mod_watch is loaded, please show me how

> <IfModule mod_status.c>
>     #
>     # Allow server status reports generated by mod_status,
>     # with the URL of http://servername/server-status
>     # Change the ".example.com" to match your domain to enable.
>     #
>     ExtendedStatus On
>     <Location /server-status>
>         SetHandler server-status
>         Order deny,allow
>         Deny from all
>         Allow from 127.0.0.1
>     </Location>
> </IfModule>

When I tried to access http://localhost/server-status I got error 403
The error log says:
[client 127.0.0.1] client denied by server configuration: =
proxy:http://internal.mydomain.com/watch-list

I got this same error for http://localhost/watch-list or =
http://localhost/server-info or http://localhost/watch-info or =
http://localhost/watch-table=20

If I try to Allow from all with this configuration:

> <IfModule mod_status.c>
>     #
>     # Allow server status reports generated by mod_status,
>     # with the URL of http://servername/server-status
>     # Change the ".example.com" to match your domain to enable.
>     #
>     ExtendedStatus On
>     <Location /server-status>
>         SetHandler server-status
>         Order deny,allow
>     #   Deny from all
>         Allow from all
>     </Location>
> </IfModule>

When trying to browse http://localhost/server-status, the error I got is =
404, and the log says nothing
It's the same for /watch-list, /server-info, /watch-info, /watch-table

Does it make any sense for you?

Thanks in advanced for your kindly help

Best regards,

Hai Nguyen

-----Original Message-----
From: Bj=F8rn Ruberg [mailto:bj...@ru...]=20
Sent: Wednesday, December 12, 2007 4:25 PM
To: mun...@li...
Cc: Hai Nguyen Quang
Subject: RE: [munin-users] apache_watch_ give an error that no mod watch =
exists on port 80

> Hai Nguyen Quang
> Hi,
>
> I did download mod_watch from this site
> http://forums.cacti.net/about15475.html
>
> I tried to lynx http://localhost/watch-list but it doesn't respond

What does "doesn't respond" mean? Timeout? Access denied? Unknown URL?
What do your logs tell you?

> But when I try to lynx http://localhost/ it goes to my homepage
> My server acts as a proxy server so maybe it need special =
configuration.

Maybe. And of all the people on this list, you are the one who knows =
your
configuration best.

And because this really seems to be an Apache configuration problem and
not a Munin related issue, you should rather contact an Apache user
mailing list. However, below are a few hints and tips to help you debug
your problem.

Please note that the questions are not there because -I- want to know, =
but
for -you- to identify where your Apache configuration is inadequate or
erroneous.

> I did add these lines in my apache.conf, but it still doesn't work:

You need to be systematic and descriptive in your debugging. What is =
"it"?
And how does "it" not work?

Are you sure the mod_watch module are loaded? If you are sure, how did =
you
find out?

> <IfModule mod_status.c>
>     #
>     # Allow server status reports generated by mod_status,
>     # with the URL of http://servername/server-status
>     # Change the ".example.com" to match your domain to enable.
>     #
>     ExtendedStatus On
>     <Location /server-status>
>         SetHandler server-status
>         Order deny,allow
>         Deny from all
>         Allow from 127.0.0.1
>     </Location>
> </IfModule>

Are you able to access http://localhost/server-status? If not, why? What
do the Apache logs tell you?

> <IfModule mod_info.c>
>
>      #Allow remote server configuration reports, with the URL of
>      # http://servername/server-info (requires that mod_info.c be =
loaded).
>      #Change the ".example.com" to match your domain to enable.
>
>     <Location /server-info>
>         SetHandler server-info
>         Order deny,allow
>         Deny from all
>         Allow from 127.0.0.1
>     </Location>
> </IfModule>

And likewise, are you able to access http://localhost/server-info? Logs?

> <IfModule mod_watch.c>
>     # Allows the URL used to query virtual host data:
>     #
>     # http://www.snert.com/watch-info
>     #
>     <Location /watch-info>
>     SetHandler watch-info
>     Order allow,deny
>     Allow from 127.0.0.1
>     </Location>

Similar for this URL. What is written to the logs when you access
http://localhost/watch-info?

>     # Intended for debugging and analysis of shared memory
>     # hash table and weenie files:
>     #
>     #http://127.0.0.1/watch-table
>     #
>
>     <Location /watch-table>
>     SetHandler watch-table
>     Order allow,deny
>     Allow from 127.0.0.1
>     </Location>
>
>     <Location /watch-list>
>     SetHandler watch-list
>     Order allow,deny
>     Allow from 127.0.0.1
>     </Location>
> </IfModule>

Also check these URLs and monitor your logs.

Good luck!

--=20
Bj=F8rn