[smokeping-users] frustrated with smokeping install ... smokeping.cgi install

Thu Dec 6 20:54:08 CET 2007

I believe I see the error of my ways.  I read something about making sure
things were relative to the smokeping.cgi script so I had the image cache
directory underneath the cgi-bin directory.  According to Apache's
documentation ANY file underneath a cgi-bin (or marked as a script
directory) no matter how many levels down is considered a script and thus
will be executed.

I moved the image-cache directory to another location and it started working
well.

I am sure I am not the only person lacking CGI expertise wanting to install
smokeping so I think a simple addition to the install pages would be nice.
Offer up a sample directory hierarchy of what one might look like and
mention that you should NOT put the image-cache directory anywhere under the
cgi script directory.

thanks

On Dec 6, 2007 1:45 PM, Doug Lochart <dlochart at gmail.com> wrote:

> I am installing smokeping on request from a manager.  I am not a PERL CGI
> guru which is probably why I am having so much trouble.  I find myself
> trying to HACK the solution as I cannot find the appropriate help I need.  I
> also have little inkling in what smokeping can do.  I know it is a latency
> monitor but when someone like me looks at the config file you get the
> feeling that you should already know about smokeping inside and out.  Okay
> enough ranting (sorry) just so frustrated.  Here is what I have done so far.
>
>
> I believe I have a successful install.  I can run smokeping from the
> command line and I see it running in ps and messages in /var/log/messages
> but I do not know what it produces.  Meaning is there a directory to watch
> for data it collects?  What am I looking for?  I have smokeping
> started/running as root ... I assume this is correct as I did not see
> mention to the contrary.
>
> Then I get to the CGI part.  My apache is from a standard redhat rpm
> install and configured for CGI and runs as the apache user.  I have speedy
> installed because once I activate the cgi I see that speedy is running.
> When I go to the smokeping.cgi in the browser I see some things incluing
> the left hand menu but I do not see the rrdtool and smokeping images that
> are supposed to be displayed at the bottom of the menu.  My apache error log
> has this:
>
> Thu Dec 06 13:13:02 2007] [error] [client 10.3.120.227] [Thu Dec  6
> 13:13:02 2007] smokeping.cgi [client 10.3.120.227]: Use of uninitialized
> value in split at /opt/smokeping/lib/Smokeping.pm line 1359.
> [Thu Dec 06 13:13:03 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of '/var/www/cgi-bin/image-cache/smokeping.png' failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?
> [Thu Dec 06 13:13:03 2007] [error] [client 10.3.120.227] Premature end of
> script headers: smokeping.png, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?
> [Thu Dec 06 13:13:03 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of '/var/www/cgi-bin/image-cache/rrdtool.png' failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?
> [Thu Dec 06 13:13:03 2007] [error] [client 10.3.120.227] Premature end of
> script headers: rrdtool.png, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?
>
> The first one is because I think I have commented out the slave section in
> the config as I don't need it and really don't understand it yet.  I am
> really confused because it looks like the images are trying to be exec'd ??
> I have looked around on the net but cannot seem to find an answer. Here are
> my directory heirarchies.  I have apache owning cgi-bin and html and all the
> way down beneath them
>
> This is the error log when I select a target machine (joesgarage)
>
> [Thu Dec 06 13:42:51 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of
> '/var/www/cgi-bin/image-cache/CapeComputing/joesgarage_last_108000.png'
> failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
> [Thu Dec 06 13:42:51 2007] [error] [client 10.3.120.227] Premature end of
> script headers: joesgarage_last_108000.png, referer: http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
>
> [Thu Dec 06 13:42:51 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of
> '/var/www/cgi-bin/image-cache/CapeComputing/joesgarage_last_10800.png'
> failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
> [Thu Dec 06 13:42:51 2007] [error] [client 10.3.120.227] Premature end of
> script headers: joesgarage_last_10800.png, referer: http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
>
> [Thu Dec 06 13:42:51 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of
> '/var/www/cgi-bin/image-cache/CapeComputing/joesgarage_last_864000.png'
> failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
> [Thu Dec 06 13:42:51 2007] [error] [client 10.3.120.227] Premature end of
> script headers: joesgarage_last_864000.png, referer: http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
>
> [Thu Dec 06 13:42:52 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of
> '/var/www/cgi-bin/image-cache/CapeComputing/joesgarage_last_34560000.png'
> failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
> [Thu Dec 06 13:42:52 2007] [error] [client 10.3.120.227] Premature end of
> script headers: joesgarage_last_34560000.png, referer: http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
>
> [Thu Dec 06 13:42:52 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of '/var/www/cgi-bin/image-cache/smokeping.png' failed, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
> [Thu Dec 06 13:42:52 2007] [error] [client 10.3.120.227] Premature end of
> script headers: smokeping.png, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
> [Thu Dec 06 13:42:52 2007] [error] [client 10.3.120.227] (8)Exec format
> error: exec of '/var/www/cgi-bin/image-cache/rrdtool.png' failed, referer:http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
>
> [Thu Dec 06 13:42:52 2007] [error] [client 10.3.120.227] Premature end of
> script headers: rrdtool.png, referer:
> http://10.3.120.131/cgi-bin/smokeping.cgi?target=CapeComputing.joesgarage
>
>
> /var/www
>
> drwxr-xr-x 3 apache apache 4096 Dec  5 15:05   cgi-bin
> drwxr-xr-x 3 root   root   4096 Dec  4 16:29         error
> drwxr-xr-x 3 apache apache 4096 Dec  6 13:09   html
> drwxr-xr-x 3 root   root   4096 Dec  4 16:29         icons
>
> /var/www/cgi-bin  looks like this
>
> -rwxr-xr-x 1 apache apache  314 Dec  5 12:43 test.cgi
> -rwxr-xr-x 1 apache apache 2599 Dec  5 12:56 smokeping.cgi
> drwxr-xr-x 4 apache apache 4096 Dec  5 15:35 image-cache
>
> /var/www/cgi-bin/image-cache  looks like this
>
> rwxr-xr-x 2 apache apache 4096 Dec  5 15:35 CapeComputing
> drwxr-xr-x 2 apache apache 4096 Dec  5 15:31 __chartscache
> -rwxr-xr-x 1 apache apache 3908 Dec  5 14:52 rrdtool.png
> -rwxr-xr-x 1 apache apache 4382 Dec  5 14:52 smokeping.png
>
> /var/www/cgi-bin/image-cache/CapeComputing  looks like this
>
> -rw-r--r-- 1 apache apache 13158 Dec  5 17:10 joesgarage_mini.png
> -rw-r--r-- 1 apache apache 13883 Dec  5 17:10 workflow-server_mini.png
>
> These are the two machines I have setup in the config file to monitor
>
> I can post my config file if you need me too.
>
> Basically why am I getting these errors?  I know it is something I have
> done or not done but I followed the instructions as best I could.
>
> thanks
>
>  Doug
>
>
>
>
>
> --
> What profits a man if he gains the whole world yet loses his soul?

-- 
What profits a man if he gains the whole world yet loses his soul?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.oetiker.ch/pipermail/smokeping-users/attachments/20071206/26208a73/attachment.html 