Using BGP for realtime import and export of OpenBSD spamd entries

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what is this spamd uses IP host entries, to whitelist, blacklist or greylist hosts spamd can import and export these lists trivia: IP host entries can be represented as a route bgp is used to distribute IP route lists tie the two together, to simplify distributing these addresses 2/27
spamd written by Bob Beck included in OpenBSD since 3.3, greylisting added in 3.5 uses greylisting to force unknown senders to retry delivery (very effective against bot-nets sending spam) uses blacklisting to reject mail from “known bad” senders fetches blacklists at the top of the hour from a web server 3/27
Page 1: Using BGP for realtime import and e
Page 5 and 6: gp communities allows you to mark a
Page 7 and 8: openbgpd everything we use is alrea
Page 9 and 10: tying them together exporting IP ad
Page 11 and 12: spamd-source first, select known go
Page 13 and 14: spamd-source whitelist semi-trusted
Page 15 and 16: oute server only accept addresses f
Page 17 and 18: client whitelist adds whitelist ent
Page 19 and 20: client blacklist why not simply use
Page 21 and 22: client blacklist $ cat /usr/local/s
Page 23 and 24: security concerns where do we get t
Page 25 and 26: future work accelerate adding addre
Page 27: Questions? 27/27

Using BGP for realtime import and export of OpenBSD spamd entries

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