perlman root This section deals with questions related to networking, the internet, and a few on the web. [My CGI script runs from the command line but not the browser. (500 Server Error)] [How can I get better error messages from a CGI program?] [How do I remove HTML from a string?] [How do I extract URLs?] [How do I download a file from the user's machine? How do I open a file on another machine?] [How do I make a pop-up menu in HTML?] [How do I fetch an HTML file?] [How do I automate an HTML form submission?] [How do I decode or create those %-encodings on the web?] [How do I redirect to another page?] [How do I put a password on my web pages?] [How do I edit my .htpasswd and .htgroup files with Perl?] [How do I make sure users can't enter values into a form that cause my CGI script to do bad things?] [How do I parse a mail header?] [How do I decode a CGI form?] [How do I check a valid mail address?] [How do I decode a MIME/BASE64 string?] [How do I return the user's mail address?] [How do I send mail?] [How do I read mail?] [How do I find out my hostname/domainname/IP address?] [How do I fetch a news article or the active newsgroups?] [How do I fetch/put an FTP file?] [How can I do RPC in Perl?]