Hello all, while doing some experiments with dig using a .fm domain I made a small typo. Much to my surprise the whole fm zone was transferable by anyone. It's obvious this is a fabulous source for dictionary spammers who just mail to generic addresses at as much domains as they can possibly find. (info@xxxxxxxxxxx, sales@xxxxxxxxxxx, ...) Intrigued by the .fm zone, I did a quick scan to see which other top level domains allowed zone transfers. It was no surprise to me that some small zones of developing countries were open, but one top level domain immediately caught my eye: getting the complete .ca zone (Canada), 48 Mb in total, serving 471.686 domains is as easy as doing 'dig axfr ca @ca01.cira.ca.' Some zones weren't transferable at the master nameservers, but were transferable at slave servers. Other publicly transferable zones: (quick and dirty count, divide by +/- 3 to get the number of domains, as this lists multiple name servers per domain) wc -l *.zone 432 ao.zone 5050 ba.zone 15 biz.et.zone 4645 bo.zone 45 bt.zone 923 bw.zone 1031788 ca.zone 20 cf.zone 11167 com.eg.zone 208 com.er.zone 377 com.ye.zone 313 cv.zone 5216 dj.zone 3724 ec.zone 51054 ee.zone 36 eg.zone 42 er.zone 54 et.zone 10063 fm.zone 498 ga.zone 482 gd.zone 6829 ge.zone 885 gp.zone 27 gq.zone 13622 gs.zone 45 gu.zone 31 gw.zone 541 gy.zone 16522 jm.zone 2732 kg.zone 76 kh.zone 17 km.zone 1467 kn.zone 210 lc.zone 36 mh.zone 75 mp.zone 22047 ms.zone 69 mt.zone 3697 museum.zone 2013 mw.zone 156 mz.zone 264 na.zone 732 org.eg.zone 415 org.mt.zone 26665 pk.zone 4280 sm.zone 3172 sn.zone 17495 tc.zone 38 td.zone 1999 tp.zone 171 uk.zone 16 um.zone 70 uy.zone 2407 vc.zone 15645 vg.zone 3308 vu.zone 61 ye.zone 220 yu.zone This does not include some second level domains like net.** and org.**, as my quick and dirty script didn't check these. After a much too long introduction here comes my questions: is this deliberate? I can understand that Chad has bigger things to worry about than 24 domains getting on yet another spam list, but why Canada makes nearly half a million domains as easy to grab as this really is a mystery to me. What do you think? Best regards, Lode Vermeiren __ lode@xxxxxxx
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