4 ms·

Obscure Facebook URL

• WestCoastJustin 13y ago
  > https://www.wwww.wwww.wwww.wwww.wwww.0.facebook.com/rdnation https://www.wwww.wwww.wwww.wwww.wwww.0.facebook.com/rdnation Looks like anything.0.facebook.com is an alias for z.c10r.facebook.com. So... $ host hackernews.0.facebook.com hackernews.0.facebook.com is an alias for z.c10r.facebook.com. $ host www.xyz.hackernews.0.facebook.com www.xyz.hackernews.0.facebook.com is an alias for z.c10r.facebook.com. It is called a Wildcard DNS record [1], which allows you to have ~.example.com go to a single IP address and have the server handle it. This is really useful for web hosting, etc, and 37signals uses it for hosting basecamp [2], so each customer gets unique name at ~.basecamp.com. [1] http://en.wikipedia.org/wiki/Wildcard_DNS_record http://en.wikipedia.org/wiki/Wildcard_DNS_record [2] http://37signals.com/svn/posts/1512-how-to-do-basecamp-style-subdomains-in-rails http://37signals.com/svn/posts/1512-how-to-do-basecamp-style...
  • spoiledtechie 13y ago
    Why would you obscure it as such?
  • mcpherrinm 13y ago
    I couldn't help but wonder if c10r was an abbreviation (is there a name for this form of shortening?): % grep '^c..........r$' /usr/share/dict/words cabinetmaker calligrapher carpetbagger cartographer cheeseburger chiropractor collaborator commissioner communicator confectioner conquistador counteroffer countertenor
    • deleted 13y ago
      [deleted]
    • cokernel_hacker 13y ago
      Yep, numeronyms. http://en.wikipedia.org/wiki/Numeronym http://en.wikipedia.org/wiki/Numeronym
    • nly 13y ago
      I think c10r is probably just c-ten-r => center