How do i fix old 404 errors and redirect them to my new stuff?

.htaccess redirect it for a 301 perm redirect. Search google for the info

I'm pretty sure you can set the new redirect up easily right in CPanel too. There is usually an icon that says "redirects" in CPanel and when you click that it will let you choose between 301, 404, etc and you just enter what you're redirecting and where to.

Useful post and good answers. Well done

Here is how I do it with Perl and htaccess

But, it's for this format only:
http://site.com/keyword.html

in the .htaccess:
RewriteEngine On
RewriteRule ^([^/]*).html$ r.cgi?url=$1 [L]

and the perl script called r.cgi

#!/usr/bin/perl -T
my $F = CGI::new();
my $keyword = $F->param(url);
# do whatever you want with the url, like map it to a table of urls
# or send it to a mysql stop off to record the click and get the referrer, etc

# the line below is manual, but like I said above, for thousands of links
# you can have a small inline text database built into the script that routes
# them wherever.

# make this your destination
my $to = qq~http://your.cool.nifty.com/link~;

# this prints a 301 header (permanently moved), by default.
# To specify 302 header (temporarily moved), you need a change it
print $F->redirect($to);
# end the r.cgi script



The .htaccess has to be different depending on what you want it to match and redirect.

It's the guts of my script at Link Redirection Service --- suprisingly nobody has messaged me asking about, so I guess it's only useful to me I'll shutup about it from now lol

If you need help installing a custom version of this for yourself I'd love to get some testimonies in exchange for a few freebies (though I suspect all the seasoned IM'ers already have something like this)

If anyone wants to know how to do it in php, asp, or just plain html post the request and I'll write up a tutorial