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Message: [QUOTE="blz3r, post: 4814777"] Thanks for the information about this small problem. I actually found a quick guide online for obtaining a users IP Address in the following manner: [code] #!/usr/bin/perl use warnings; use strict; use CGI qw/:standard/; my $remote_ip = $ENV{'REMOTE_ADDR'}; print header; print "Your IP is: $remote_ip\n"; [/code] Would it be best to try to parse this and check it against domain to see if its in the same domain or would it be best to get the user's hostname and call to dig or nslookup to check if its from the same domain? I wasn't sure if perl had a way of getting the user's hostname and I believe all the machines that will be coming in should have some sort of hostname, so would that be best to use and if so, does anyone know how it could be done to check whether the person trying to access the script is from the same domain as the one hosting the script and if they're not, print error message. [/QUOTE]