CGI script not running, Internal Server Error (500) Error

3
votes

I am trying to run a cgi script, its a long script so i wont paste here but it works on my other servers but for some reason when I try to run it on my new server I get Internal server error (500), and when I check the apache log here is what I get : 

[Fri Mar 30 08:38:29 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/test.cgi' failed
[Fri Mar 30 08:38:29 2012] [error] [client 199.212.76.124] Premature end of script headers: test.cgi
[Fri Mar 30 08:38:29 2012] [error] [client 199.212.76.124] File does not exist: /var/www/htdocs/favicon.ico
[Fri Mar 30 08:41:11 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/test.cgi' failed
[Fri Mar 30 08:41:11 2012] [error] [client 199.212.76.124] Premature end of script headers: test.cgi
[Fri Mar 30 08:41:11 2012] [error] [client 199.212.76.124] File does not exist: /var/www/htdocs/favicon.ico
[Fri Mar 30 08:41:12 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/test.cgi' failed
[Fri Mar 30 08:41:12 2012] [error] [client 199.212.76.124] Premature end of script headers: test.cgi
[Fri Mar 30 08:41:12 2012] [error] [client 199.212.76.124] File does not exist: /var/www/htdocs/favicon.ico
[Fri Mar 30 08:41:15 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/test.cgi' failed
[Fri Mar 30 08:41:15 2012] [error] [client 199.212.76.124] Premature end of script headers: test.cgi
[Fri Mar 30 08:41:15 2012] [error] [client 199.212.76.124] File does not exist: /var/www/htdocs/favicon.ico
[Fri Mar 30 08:41:20 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/upload.cgi' failed
[Fri Mar 30 08:41:20 2012] [error] [client 199.212.76.124] Premature end of script headers: upload.cgi
[Fri Mar 30 08:41:20 2012] [error] [client 199.212.76.124] File does not exist: /var/www/htdocs/favicon.ico
[Fri Mar 30 08:41:21 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/upload.cgi' failed
[Fri Mar 30 08:41:21 2012] [error] [client 199.212.76.124] Premature end of script headers: upload.cgi
[Fri Mar 30 08:41:21 2012] [error] [client 199.212.76.124] File does not exist: /var/www/htdocs/favicon.ico
[Fri Mar 30 08:41:29 2012] [error] [client 199.212.76.124] (2)No such file or directory: exec of '/var/www/cgi-bin/upload.cgi' failed, referer: http://bla.com
[Fri Mar 30 08:41:29 2012] [error] [client 199.212.76.124] Premature end of script headers: upload.cgi, referer: http://bla.com

I have tried everything, chmod the files, reinstall perl modules, rechecking the configuration etc!!!! Can not figure out what is wrong!!! but I can guarantee that the script is not broken!

Regards

3
perlapachecgicentosinternal-server-error
This could be wrong path to executable. Confirm that #!/usr/bin/perl or whatever you have in the first line exists and is executable. - mcsi
I can almost guarantee that your script is broken, if not by itself then by way of unmet dependencies. In addition to what @mcsi said, look for missing permissions, missing libraries, wrong versions, etc. Running the script from the command line might be a good way to reveal more. - tripleee
Just because your script works, doesn't mean it will not throw a 500 error. For instance, if your script doesn't return a content-type to apache, it will throw that error. - GoldenNewby

3 Answers

2
votes

Try running:

perl -c /var/www/cgi-bin/upload.cgi

Quote from perldoc perlrun:

   -c   causes Perl to check the syntax of the program and then exit
        without executing it.  Actually, it will execute "BEGIN",
        "UNITCHECK", "CHECK", and "use" blocks, because these are
        considered as occurring outside the execution of your program.
        "INIT" and "END" blocks, however, will be skipped.
2
votes

Run your script with perl -w /var/www/cgi-bin/upload.cgi.

I should write out an HTTP header

Content Type: text/html
[blank line]

If not, your script not working well. Maybe the other server pass you a variable and your script won't create a proper header any more.

Paste this code in the very to of your script. If your script looks bad, but working, you found out the bug.print("Content Type: text/html\n\n");

print("Content Type: text/html\n\n");

regards,

1
votes

Other things to check would be

  • the location of perl in the first like (#!/usr/..)
  • dos2unix the file, no asci characters
  • other cgi scripts in different locations to eliminate cgi setup
  • directory perms? Not sure if that effects it