25% spam hit rates

Vernon Schryver vjs@calcite.rhyolite.com
Tue Sep 4 02:00:17 UTC 2001


`cdcc "host dcc.rhyolite.com; stats"` produces:

  dcc.rhyolite.com calcite.rhyolite.com 192.188.61.3,6277
	  server-ID 101  19:53:06
      version 1.0.28  DB locked  tracing ANON CLNT 
    90109 hash entries  66617 used   3460080 DB bytes
      1 ms delay 236 NOPs     45 ADMN   108 query   12 clients
   1056 reports    0>10        0>100      0>1000    39 many
       answers   385>10      107>100      0>1000   102 many   34 whitelisted
      0 bad IDs   11 passwds   0 error responses    30 retransmitted
      0 answers rate-limited   0 anonymous           0 rejected reports
      flood on   9 streams   5 out active 5 in      8766 total flooded in
   2337 accepted  23 stale  6406 dup      0 white    0 delete  0 bad id
    100 mmap   146453 hashed 68138 records mapped   3368 added
    since Sep 02 09:28:57.381686 MDT

That says that in the 10.5 hours starting from 9:30 am until about 8 pm,
my server has received 1056 reports of the checksums of messages. 
Of those, 385 or 36% look like spam because they have addressee counts
above 10.  (10 is a reasonable threshold for my vanity domain, and
for the other clients of my DCC server, all of which seem similar.)
Assuming that a substantial fraction of the remaing 64% were not spam
implies a much better than 25% effectiveness against the spam seen
around here.


Vernon Schryver    vjs@rhyolite.com



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