Lazy network operators - NOT

Mike Jezierski - BOFH bofh at digitalfarmers.org
Mon Apr 19 03:55:33 UTC 2004


Yes I was being mostly facetious. But as others pointed out- 
Micro$not is as much to blame for the spam problem as Road Runner and 
CommieCast with their extremely shoddy software. Open proxies, worms, 
relays, spyware ad nauseum.

><late-night-humor>
>I was amused at this and decided to look real quick.. OpenBSD's pf 
>can block on OS fingerprints.. effectively doing exactly what you 
>are kidding about (at least I'd hope so.. well, maybe) even in the 
>man page example they put:
>
># Do not allow Windows 9x SMTP connections since they are typically
># a viral worm. Alternately we could limit these OSes to 1 connection each.
>block in on $ext_if proto tcp from any os {"Windows 95", "Windows 98"} \
>       to any port smtp
>
>The OS fingerprint list they have is rather extensive..
></late-night-humor>
>
>:)
>
>
>Mike Jezierski - BOFH wrote:
>
>{sniped}
>
>>the damned operating system Micro$haft. If there was a blackhole 
>>list to block all Windows lUsers it would be more effective - 
>>granted that would also reduce email down to about 10% of the 
>>computing population.
>>
>>No zombies on my Macintosh regards.....




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