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OpenBSD's Packet Filter Gains OS Fingerprinting

Posted by CowboyNeal on from the no-more-amigas-on-my-networks dept.

basilpronoun writes "The PF packet filter / firewall that comes with OpenBSD has just been improved to allow firewalling decisions to take place based not only on the source of a connection, but the operating system of that source. There are both good and evil applications, not the least of which is blocking the spam from infected Windows machines."

2 of 18 comments (clear)

  1. Worm warning by ptaff · · Score: 2, Interesting

    Then if there is a Windows worm in the wild, all OpenBSD routers on the net can redirect the Windows traffic to windowsupdate.com ...?

  2. be nice by muirhead · · Score: 2, Interesting
    From the article:
    Or maybe I think SCO sucks sweaty monkey balls and their customers should be redirected to a web page of ranting and ravings about why they should cancel their contracts or somesuch.
    Okay, so they made a mistake, be nice.
    Don't you think that SCO's customers are suffering enough already?