Perl 500 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 Server Error". It is one of internal server error cgi python the most uninformative error messages that can mean anything from an improper upload to
Cgi Script Internal Server Error
a bug in the script. This article attempts to give you some concrete, practical steps that you can take to narrow apache cgi-bin 500 internal server error down the problem and hopefully eliminate it. For the uninitiated, a "500 Internal Server Error" is a message much like the common "404 File Not Found" message. You get the latter message in your browser internal server error cgi-bin apache 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 the Internet. We will try to eliminate the most common errors first (and the easiest-to-eliminate ones): Location Did you
Python Cgi 500 Internal Server Error
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 representing the end of line character (eg Unix uses a line-feed, Windows uses a carriage-return and line-feed pair), it is important that you set the uploading method to ASCII, so that line-end translation is performed. Re-upload the script, this
here for a quick overview of the site Help Center Detailed answers to any questions you might internal server error apache have Meta Discuss the workings and policies of this site About internal server error php Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting
Internal Server Error Wordpress
ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 http://www.thesitewizard.com/archive/servererror.shtml million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why does my Perl CGI script cause a 500 internal server error? up vote 3 down vote favorite I get a 500 internal server error when I try to run the code below in a web server which http://stackoverflow.com/questions/2872040/why-does-my-perl-cgi-script-cause-a-500-internal-server-error supports perl: #! /usr/bin/perl use LWP; my $ua = LWP::UserAgent->new; $ua->agent("TestApp/0.1 "); $ua->env_proxy(); my $req = HTTP::Request->new(POST => 'http://www.google.com/loc/json'); $req->content_type('application/jsonrequest'); $req->content('{ "cell_towers": [{"location_area_code": "55000", "mobile_network_code": "95", "cell_id": "20491", "mobile_country_code": "404"}], "version": "1.1.0", "request_address": "true"}'); my $res = $ua->request($req); if ($res->is_success) { print $res->content,"\n"; } else { print $res->status_line, "\n"; return undef; } But there is no error when I run the code below: #! /usr/bin/perl use CGI::Carp qw(fatalsToBrowser); print "Content-type: text/html\n\n"; print "\n"; print "
Hello World!
\n"; foreach $key (sort keys(%ENV)) { print "$key = $ENV{$key}
" ; } print "\n"; print "\n"; So I think there is some problem with my code. When I run the first perl script in my local machine with the -wc command, it says that the syntax is OK. Help me please. perl cgi share|improve this question edited May 21 '10 at 0:26 brian d foy 87.1k24150391 asked May 20 '10 at 8:19 Nitish 60151127 1 When you have troubl
in the script or the server's inability to understand it, and is not an error caused on your end. The error resides solely on the server that hosts the http://www.computerhope.com/issues/ch001294.htm website. 500 error user troubleshooting Despite the issue being something you can't control or http://askubuntu.com/questions/71496/why-does-my-perl-cgi-script-raise-an-internal-server-error-on-apache fix directly, there are a few things you can try to rectify the problem from your computer. Try reloading the web page (press F5) to see if the error can be cleared up. Try coming back to the web page at a later time. If you're not the webmaster, it's likely that they are working server error on the problem. Contact the webmaster by e-mail. Many web pages have a link on it to contact the company (support email) or the server hosted the page. In any case, just know that you did not cause the error and your computer or Internet connection are not at fault. 500 error webmaster troubleshooting If you are responsible for the script or page generating this error, below are internal server error steps that can be taken to help identify and fix this error with your script. Script is not set as executable All scripts uploaded to a server must have execute permissions (e.g. chmod 755 or -rwxr-xr-x). If you are uploading the file through a graphical FTP program such as FileZilla, right-click the file on the Server and click File permissions to see the permissions. File is not being uploaded as ASCII (Text) When uploading any Perl or PHP script file you need to make sure that the file is uploaded in ASCII (Text) mode and not Binary mode. If your program is uploading the files and mode is automatically be set, try switching to manual and make sure it is ASCII (Text) mode. Perl script doesn't have a shebang or content-Type If you are uploading a Perl script (files ending with .pl or .cgi,) it must have a shebang as the first line and a content-Type line before any print command. Below is what we recommend having at the top of all your Perl script file. Adding the fatalstobrowser line to our script will print any error to the browser window, which helps debug the script if there are errors in it. #!/usr/bin/perluse strict;u
communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the 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 Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Why does my Perl CGI script raise an internal server error on Apache? up vote 1 down vote favorite I've installed apache2 on Ubuntu 11.04, and localhost is working. I created a simple printenv.pl script and put it in the following directory $ mv printenv.pl /usr/lib/cgi-bin/ $ chmod +rx /usr/lib/cgi-bin/printenv.pl However when I go to http://127.0.0.1/cgi-bin/printenv.pl, I get a 500 Internal Server Error I checked the error log at /var/log/apache2, and this is what it says: [Mon Oct 24 11:04:25 2011] [error] (13)Permission denied: exec of '/usr/lib/cgi-bin/printenv.pl' failed [Mon Oct 24 11:04:25 2011] [error] [client 127.0.0.1] Premature end of script headers: printenv.pl Any suggestions on how I can fix this and run CGI scripts on my localhost? apache2 perl webapp-development share|improve this question edited Jan 10 '12 at 3:58 Jjed 9,40055385 asked Oct 24 '11 at 15:15 itcplpl 613 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote I had this problem as well. It turned out that I had set the .pl files permissions to 775. Apache does not allow user writable. Try changing your .pl file permissions to 755. If that isn't it, chec