Perl Cgi-bin Internal Server Error
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of questions I get from my visitors at thesitewizard.com, I can see that one of the most dreaded errors that newcomers to CGI face is the "500 Internal
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Server Error". It is one of the most uninformative error messages that apache cgi-bin 500 internal server error can mean anything from an improper upload to a bug in the script. This article attempts to give you
Internal Server Error Cgi-bin Apache
some concrete, practical steps that you can take to narrow down the problem and hopefully eliminate it. For the uninitiated, a "500 Internal Server Error" is a message much like the common 500 internal server error apache php "404 File Not Found" message. You get the latter message in your browser when you try to access a non-existent web page. You get the "500 Internal Server Error" message when you try to run a script with problems. For the purposes of this article, I am assuming that your CGI script is a Perl script, by far the most commonly available on python cgi 500 internal server error the Internet. We will try to eliminate the most common errors first (and the easiest-to-eliminate ones): Location Did you upload your scripts into the right place? This is not as obvious as it may seem. Some servers are configured to run your CGI scripts anywhere. Others will only run it when it is installed in a particular directory. It is not just a matter of creating a "cgi-bin" directory — for example, some hosts configure the server so that it will run scripts only from a particular directory outside the web directory structure (for security reasons). Your web page will still call the script "/cgi-bin/script.pl" but the server maps it to the actual directory. You will have to upload it in the right directory, regardless of what your web page calls it. Find out such information from your web host's documentation. File Upload Mode Did you upload your Perl script in ASCII mode? Your FTP client may have uploaded the script in binary mode if you did not take any special action. Perl scripts are ASCII files, and since different operating systems have different ways of represe
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include: • Money-back guarantee • No monthly fees • Free tech support • Easy setup (we can even do it for you!) 500 Internal Server http://www.thesitewizard.com/archive/servererror.shtml Error ...and how to fix it. The short answer: this is usually a permissions error on your CGI script, which is easy to fix. Go to your FTP client, or your website file manager, and highlight or right-click on the CGI script. Then choose Properties, or Permissions, or "Chmod", and set it https://encodable.com/internal_server_error/ to world-executable: that's 0755, or a+rx, or -rwxr-xr-x. Do NOT use 0777 (a+rwx or -rwxrwxrwx). And your cgi-bin directory itself should also be 0755, not 0777. The long answer: when running a Perl CGI script like FileChucker or UserBase, you may see the "Internal Server Error" message in your browser. The message will usually also say something like "please check the server's error-log for more information." You should do that -- the message printed to the error log will often tell you exactly what the problem is. The Apache error log, for example, is often located at /var/log/apache/error_log or /var/log/apache2/error_log (or sometimes "error.log"). If you don't have access to the error log, the next simplest thing to do is to make a backup copy of the script, then open the original and delete all of its contents, and add just these 3 lines to the file: #!/usr/bin/perl print "Content-type: text/plain\n\n"; print "testing...\n"; (Note: if the serve
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the http://stackoverflow.com/questions/9937213/cgi-script-not-running-internal-server-error-500-error workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs https://httpd.apache.org/docs/2.4/howto/cgi.html Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; internal server it only takes a minute: Sign up CGI script not running, Internal Server Error (500) Error up vote 2 down vote favorite 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 internal server error 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 199.21
Configuring Apache to permit CGI Writing a CGI program But it's still not working! What's going on behind the scenes? CGI modules/libraries For more information See alsoComments Introduction Related ModulesRelated Directivesmod_aliasmod_cgimod_cgidAddHandlerOptionsScriptAlias The CGI (Common Gateway Interface) defines a way for a web server to interact with external content-generating programs, which are often referred to as CGI programs or CGI scripts. It is the simplest, and most common, way to put dynamic content on your web site. This document will be an introduction to setting up CGI on your Apache web server, and getting started writing CGI programs. Configuring Apache to permit CGI In order to get your CGI programs to work properly, you'll need to have Apache configured to permit CGI execution. There are several ways to do this. Note: If Apache has been built with shared module support you need to ensure that the module is loaded; in your httpd.conf you need to make sure the LoadModule directive has not been commented out. A correctly configured directive may look like this: LoadModule cgid_module modules/mod_cgid.so On Windows, or using a non-threaded MPM like prefork, A correctly configured directive may look like this: LoadModule cgi_module modules/mod_cgi.so ScriptAlias The ScriptAlias directive tells Apache that a particular directory is set aside for CGI programs. Apache will assume that every file in this directory is a CGI program, and will attempt to execute it, when that particular resource is requested by a client. The ScriptAlias directive looks like: ScriptAlias "/cgi-bin/" "/usr/local/apache2/cgi-bin/" The example shown is from your default httpd.conf configuration file, if you installed Apache in the default location. The ScriptAlias directive is much like the Alias directive, which defines a URL prefix that is to mapped to a particular directory. Alias and ScriptAlias are usually used for directories tha