I just finished a new installation of fedora 14 with ispconfig 3 following the perfect server tutorial and I ran into a problem. When I had my websites set to suexec + fast-cgi, I would get error 500 when uploading any files. This happened to my wordpress and slideshowpro director installations. I could not figure it out at first and decided to completely reinstall fedora 14, which still produced the same error and generated the following log: Code: [Sat Dec 04 00:39:11 2010] [warn] [client xxx.xxx.xxx.xxx] mod_fcgid: HTTP request length 132532 (so far) exceeds MaxRequestLen (131072), referer: http://example.com/wp-admin/themes.php?page=custom-background The solution was to add the following code to apache directives in the options tab for the website: Code: <IfModule mod_fcgid.c> MaxRequestLen 15728640 </IfModule> I don't know the cause of this error because my jpeg was not large at all, maybe 500kb. I was able to upload using any other php option for the websites, such as mod-php, cgi, suphp. I found the tip at the following website:http://www.blogtorrent.de/2010/11/30/mod_fcgid-http-request-length-135714-so-far-exceeds-maxrequestlen-131072/