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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Problems with NS*.worldnic.com
In message <[email protected]>, "Christ opher L. Morrow" writes: > > >On Tue, 26 Apr 2005, Randy Bush wrote: > >> lots of folk sent email to me and not the list. most report >> worldnic responding with tcp 53 and not udp. would love to >> hear confirmation on list. can think of a number of causes, >> one possible, but just a stab in the dark, would be an >> intentional hack as a defense to a spoofed-ip attack. >> >> what are some names known to be hosted on worldnic? > >we had problems reported with: > >www.calairmail.com >www.holidaycardwebsite.com > >I did some poking around lastnight with dig and some local unix hosts that >I hadn't tried this before on and got no change to tcp :( (so no truncate >and returned results via UDP) though today I see: > >[email protected]:~$ dig www.holidaycardwebsite.com. @ns7.worldnic.com >;; Truncated, retrying in TCP mode. > >and failures (which is PROBABLY my silly iptables config...) > >[email protected]:~$ dig www.holidaycardwebsite.com. @ns8.worldnic.com > >; <<>> DiG 9.2.2rc1 <<>> www.holidaycardwebsite.com. @ns8.worldnic.com >;; global options: printcmd > >interesting that both servers aren't doing the same thing? > Both work for me, from two different places, one of which has v6 connectivity and one of which doesn't. --Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb
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