Hi All,
A few people in the office, at about 1 pm yesterday, complained about some
sites returning "no address" errors from our proxy. At first I thought the
proxy had just lost the plot and so restarted squid and flushed its DNS
cache; still no joy.
So I did some more digging. Seemed any site (including qantas.com.au and
scholastic.com.au) that was using Telstra's DNS servers "ns0.telstra.net"
and "ns1.telstra.net" were not resolving an IP - for anything; hosts, MX ot
NS records...nadda. Also (after extracting the valid IP's from other
sources) those sites couldn't be pinged either with a "no route to
host" (traceroute = !H) from a Telstra router in Sydney.
Did Telstra's hosting service have a hic-up for an hour or two? Anyone here
know more? We have a customer in Singapore with their panties in a bunch
coz our internal systems couldn't send e-mail to scholastic.com.au. I
think the two are related - not 100% sure though.
Cheers,
James
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