=head1 NAME
-perlfaq9 - Networking ($Revision: 1.4 $, $Date: 2001/10/31 23:54:56 $)
+perlfaq9 - Networking ($Revision: 1.9 $, $Date: 2002/04/07 18:46:13 $)
=head1 DESCRIPTION
to Perl, and has its own FAQs and tutorials, and usenet group,
comp.infosystems.www.authoring.cgi
-The original CGI specification is at: http://hoohoo.ncsa.uiuc.edu/cgi/
+The original CGI specification is at: http://hoohoo.ncsa.uiuc.edu/cgi/
-Current best-practice RFC draft at: http://CGI-Spec.Golux.Com/
+Current best-practice RFC draft at: http://CGI-Spec.Golux.Com/
Other relevant documentation listed in: http://www.perl.org/CGI_MetaFAQ.html
=head2 My CGI script runs from the command line but not the browser. (500 Server Error)
-If you can demonstrate that you've read the FAQs and that
+Several things could be wrong. You can go through the "Troubleshooting
+Perl CGI scripts" guide at
+
+ http://www.perl.org/troubleshooting_CGI.html
+
+If, after that, you can demonstrate that you've read the FAQs and that
your problem isn't something simple that can be easily answered, you'll
probably receive a courteous and useful reply to your question if you
post it on comp.infosystems.www.authoring.cgi (if it's something to do
The best source of detailed information on URI encoding is RFC 2396.
Basically, the following substitutions do it:
- s/([^\w()'*~!.-])/sprintf '%%%02x', $1/eg; # encode
+ s/([^\w()'*~!.-])/sprintf '%%%02x', ord $1/eg; # encode
s/%([A-Fa-f\d]{2})/chr hex $1/eg; # decode
C</^[\w.-]+\@(?:[\w-]+\.)+\w+$/>. It's a very bad idea. However,
this also throws out many valid ones, and says nothing about
potential deliverability, so it is not suggested. Instead, see
-http://www.cpan.org/authors/Tom_Christiansen/scripts/ckaddr.gz,
+http://www.cpan.org/authors/Tom_Christiansen/scripts/ckaddr.gz ,
which actually checks against the full RFC spec (except for nested
comments), looks for addresses you may not wish to accept mail to
(say, Bill Clinton or your postmaster), and then makes sure that the
=head1 AUTHOR AND COPYRIGHT
-Copyright (c) 1997-1999 Tom Christiansen and Nathan Torkington.
+Copyright (c) 1997-2002 Tom Christiansen and Nathan Torkington.
All rights reserved.
This documentation is free; you can redistribute it and/or modify it