Sorry, I just saw that error before I patched munin-cgi-graph. Perhaps ensure that the version of munin-cgi-graph in /usr/lib/cgi-bin is indeed the version that you’ve patched.

/usr/lib/cgi-bin$ md5sum *
89a05267a8dd74b74661a93160828bfd  munin-cgi-graph
89a05267a8dd74b74661a93160828bfd  munin-cgi-graph.in
40f739d746ecd0a06defa2d861058601  munin-cgi-graph.orig

It looks like around line 80 of the patched munin-cgi-graph is where you would get that error if you’re not passing all the data.

Are your image links something like:
https://munin/cgi-bin/munin-cgi-graph/prod.example.org/server.prod.example.org/apache_processes-day.png ?

More specifically, did you add ‘graph_strategy cgi’ to your munin.conf and has munin-html rerun to update all of the links as discussed in step #2 of the cgi howto?

Thank You that was the problem. The diff file was in a html format
But now I get on my nagios “website” = Invalid parameters! when i try to open http://www.mydomain.com/cgi-bin/munin-cgi-graph and in the apache2 error logs I get:

Use of uninitialized value in split at /usr/lib/cgi-bin/munin-cgi-graph line 77.
Warning: Request for graph without specifying domain. Bailing out.

I also tried to remove the “SetHandler” line but without success
It is Debian 4.0 Etch System.

Perhaps you also know how to handle that

Take a look at the patch file. You’ll need to be sure you’re saving the raw output with no HTML from that page. It should start like this:

--- /usr/lib/cgi-bin/munin-cgi-graph	2006-12-08 18:18:51.000000000 +0100
+++ /usr/lib/cgi-bin/munin-cgi-graph-fastcgi	2007-06-14 01:02:15.000000000 +0200
@@ -40,6 +40,7 @@
 use IO::Handle;
 use Date::Manip;
 use POSIX qw(strftime);
+use CGI::Fast;

 my $GRAPHER = "/usr/share/munin/munin-graph";
 my $conffile = "/etc/munin/munin.conf";

If it doesn’t, you’ll want to make sure you’re downloading the diff like:

wget http://munin.projects.linpro.no/attachment/ticket/3/munin-cgi-graph_fastcgi.diff?format=raw -O munin-cgi-graph_fastcgi.diff

thank you for your post. I am getting the following error on patching the munin-cgi-graph file:

patch: **** Only garbage was found in the patch input

This normally means that the diff file is corrupted or something else.

Did somebody experience the same problem ?

Thank You