Session-IDs in Hostnames

Interesting use of Wildcard-Records in the DNS to encode Session-IDs in Hostnames. Interesting, because if you are using relative URLs on your site, you do not need to do anything to prepare your URLs after the initial redirect. See http://www.fahrschulportal.de/ for the site. Below is their DNS setup. I have been toying with wildcard host records for some time now, but I did not make a package out of it. Seems that Sevenval created a complete shopping package based on that idea. Seems that they applied for a software patent for that idea (What for? For wildcard host records? That would be truly strange.) > server ns.fahrschulportal.de Default Server: ns.fahrschulportal.de Address: 195.82.89.227 > ls fahrschulportal.de [ns.fahrschulportal.de] $ORIGIN fahrschulportal.de. @ 1D IN SOA ns hostmaster ( 1999051003 ; serial 8H ; refresh 2H ; retry 1W ; expiry 1D ) ; minimum 1D IN NS sec2.piro.net. 1D IN NS ns.piro.net. 1D IN NS ns2.piro.net. 1D IN MX 20 mail-in-02.piro.net. 1D IN MX 100 mail-in-03.piro.net. 1D IN MX 10 mail-in-01.piro.net. 1D IN A 195.82.89.227 * 1D IN A 195.82.89.227 1D IN HINFO "IBM-PC" "UNIX" mail 1D IN A 195.82.89.227 1D IN HINFO "IBM-PC" "UNIX" localhost 1D IN A 127.0.0.1 ns 1D IN A 195.82.89.227 1D IN HINFO "IBM-PC" "UNIX" @ 1D IN SOA ns hostmaster ( 1999051003 ; serial 8H ; refresh 2H ; retry 1W ; expiry 1D ) ; minimum Kristian -- Kristian Köhntopp, NetUSE Kommunikationstechnologie GmbH Siemenswall, D-24107 Kiel, Germany, +49 431 386 436 00 Using PHP3? See our web development library at http://phplib.netuse.de/ (We have moved! Update your bookmarks!)