Lighttpd Perl 500 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 cgi script internal server error the "500 Internal Server Error". It is one of the most uninformative
Apache Cgi-bin 500 Internal Server Error
error messages that can mean anything from an improper upload to a bug in the script. This article internal server error cgi python attempts to give you 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"
Internal Server Error Cgi-bin Apache
is a message much like the common "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 python cgi 500 internal server error 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 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
over 7 years ago Hi guys,got lighty running on Debian Lenny. Unfortunately i randomly get errors (500 Internal Server Error) with a perl script responding to an AJAX-request performed through a call from the PROTOTYPE javascript framework.I can exclude
Perl Internal Server Error -w
an error within the script itself since it contains exactly two lines:#!/usr/bin/perlprint "123test";Bad
Cgi Internal Server Error
thing is that it sometimes works and responds with the specified text to the ajax call, sometimes it doesn't, premature end of script headers perl responding with the mentioned error.Even worse, lighty doesn't show anything in it's error.log, access.log shows the accesses and that they sometimes end in status 200, sometimes in status 500...In lighttpd.conf i http://www.thesitewizard.com/archive/servererror.shtml got the following:$HTTP["url"] =~ ".cgi" { cgi.assign = ( ".cgi" => "/usr/bin/perl" )}Anybody got me some help? Replies (3) RE: Random "500 Internal Server Error" with Perl - Added by polki over 7 years ago Ok, did some more testing. This has got nothing to do with Perl in general. It also happens with scripts using PHP.So the problem seems to be anything http://redmine.lighttpd.net/boards/2/topics/1281 between the Prototype ajax request and the script that is called from this ajax request.Some more testing revealed, that the script is called and fully executed though (making the perl script write something out to a file leads to this file being written like it should), still the ajax-request SOMETIMES and only SOMETIMES ends with a "500 Internal Server Error" message. The other times it works just fine... RE: Random "500 Internal Server Error" with Perl - Added by polki over 7 years ago Come on guys, please help me with this problem. I've already been urged to switch to another webserver, but i want to get this running with lighty! RE: RE: Random "500 Internal Server Error" with Perl - Added by Davide_Baldini over 2 years ago Does your Perl script execute correctly up to its very last line, or have you just observed that it runs up to "some point" and outputs a file?Is the script's exist status "0"?Did moving to another webserver solve it? I reported a similar problem as yours: Intermittent HTTP 500 on CGI (1-3/3) Loading... Powered by Redmine © 2006-2016 Jean-Philippe Lang
in Linux, Perl, UNIX, Windows serverAt my work place, we provide shared hosting and http 500 error is the http://www.cyberciti.biz/tips/http-500-error-when-i-run-my-perl-script.html most common in trouble tickets. Although everything is properly configured we http://www.cyberciti.biz/tips/http-error-500-internal-server-for-php-pages-and-solution.html still get reports of error.
Send MIME type99% time - it was not servers fault at all. I found that the most common reason for HTTP 500 errors is not printing the MIME type before outputting data to the web browser. All you internal server need following line before outputting data to the web browser:print "Content-type: text/html\n\n";Perl does not automatically generate HTML. Also try following few suggestions:PermissionsYou need to setup file permissions on perl scriptchmod 755 perlscript.pl chmod +x perlscript.plPerl script location It must be in cgi-bin directory (or directory configured to run perl). Some servers are configured internal server error to run your CGI scripts anywhere.Error log filePlease check your log file to find errors in your Perl script.tail -f /var/log/httpd/error.log tail -f /var/log/httpd/access.logDebugPass -wc option to perl script at shell prompt, enter:perl -wc myscript.plIt will often point out exactly where the trouble is.I am not perl guru but as a sys admin, I need to look after this kind of problems. What other techniques all of you follow to troubleshoot Perl http 500 error problem? Share this on:TwitterFacebookGoogle+Download PDF version Found an error/typo on this page?About the author: Vivek Gite is a seasoned sysadmin and a trainer for the Linux/Unix & shell scripting. Follow him on Twitter. OR read more like this:Howto Make Script More Portable With #!/usr/bin/env As a ShebangTest and Troubleshoot Chrooted Apache JailLinux: Forcing Apache to correct misspellings of URLQuick tip: Perl One LinersLinux Apache setting Perl CGI Script LimitsPerl script to monitor disk space and send an emailThe rise of bots, spammers, crack attaOctober 24, 2006 in Apache, lighttpd, TroubleshootingYou get "500 - Internal server error" error message when a user tries to access your Apache or Lighttpd based dynamic php application (such as forum or blog software).
Generally, to solve this problem you need to take help of log files located at following location: => /var/log/message => /var/log/httpd/error_logs (/var/log/lighttpd/error_log or /var/log/httpd/error_log)So you may be wondering why your PHP script throws an Internal Server Error 500.This error only occurs because of web server software. However after looking through logs you may not find many details. This problem may be caused by:A malformed php cgi scriptAn invalid directive in an .htaccess or other config fileLimitation imposed by file system and server software (for example php log file size set to 10Mb)Missing php.ini (or cannot read php.ini file)In most case it is an invalid .htaccess directive. However recently I came across a web server w/o /etc/php.ini file. A long time ago I setup this server )Apache chrooted jail). So you need to maintain two files one outside jail and another inside jail: => /etc/php.ini => /chroot/etc/php.ini <-- this file was missing Many scripts open this file on fly to get correct configuration directives. If this file not found you get error 500. It took some time to figure out this problem. Finally strace helped me out to debug this problem. For me it was another day with another interesting problem ;) Share this on:TwitterFacebookGoogle+Download PDF version Found an error/typo on this page?About the author: Vivek Gite is a seasoned sysadmin and a trainer for the Linux/Unix & shell scripting. Follow him on Twitter. OR read more like this:Test and Troubleshoot Chrooted Apache JailLighttpd php segfault at 0000000000000040 rip 0000003e30228278 rsp…Lighttpd web server setup custom PHP.INI file for each user or domainThe rise of bots, spammers, crack attacks and libwww-perlSetup sendmail php mail() support for chrooted Lighttpd or Apache web…Apache and Lighttpd server send error 503 when web site is under…Ultimate Lighttpd webserver securityLighttpd / Apache : Run Xcache in Chrooted JailPHP Log All Errors to a Log File to Get Detailed Informati