North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: DDoS Question
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > They randomize the name on the subject line. Is this any particular > virus/malware/zombie signature and any suggestion on how to defend > against it besides what I'm already doing (which is all of the > obvious, rbls, spam appliances, hot cocoa, etc.)? > > This happened right around the time I started securing the name server > infrastructure with BIND upgrades and recursor/authoritative NS > splitting. :-) RBLs are only effective against perhaps 50% of spam traffic, because so much of it comes from never-seen-before zombies. What appliances are you running? You might want to look at some kind of edge email traffic shaping layer. Regards, Ken - -- Ken Simpson CEO, MailChannels Fax: +1 604 677 6320 Web: http://mailchannels.com MailChannels - Reliable Email Delivery (tm) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFG/EGb2YHPr/ypq5QRAuKNAKCYqf7uVoJmSAdKSSFH1NOTsLsZ6gCgk1Id 7+dI9UOemZtgqAI5pM+LwY4= =V0fG -----END PGP SIGNATURE-----
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