[Outages-discussion] [outages] 8x8 issues?

[T.Suzuki]

On my honeypot, 
http://www.e-ontap.com/dns/openresolver/
I found these logs of the Water Torture attack against 8x8.com.

Jun 24 01:46:39 unbound[64364:0] error: SERVFAIL <partner.us.8x8.com. A IN>: all servers for this domain failed, at zone 8x8.com. no server to query nameserver addresses not usable
Jun 24 01:46:39 unbound[64364:0] error: SERVFAIL <sial-dr.lcs.8x8.com. A IN>: all servers for this domain failed, at zone 8x8.com. no server to query nameserver addresses not usable
(snip)
Jun 24 01:53:19 unbound[64364:0] error: SERVFAIL <r12744310.sync.app.app.8x8.com. A IN>: all servers for this domain failed, at zone 8x8.com. no server to query nameserver addresses not usable
Jun 24 01:53:19 unbound[64364:0] error: SERVFAIL <off-03.vty.8x8.com. A IN>: all servers for this domain failed, at zone 8x8.com. no server to query nameserver addresses not usable

JST (UTC+0900,PST+17:00)

-- 
T.Suzuki / Chukyo University