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Aren't networks fun? - 'Twas brillig, and the slithy toves did gyre and gimble in the wabe [entries|archive|friends|userinfo]
Thomas

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Aren't networks fun? [Friday 12th August 2011 at 7:54 pm]
Thomas

boggyb
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[Feeling |annoyedannoyed]
[Playing |Super Mario RPG - The Road Goe ~ Tyler Heath (Unknown)/]

My ISP can't decide which IP address it should give me for a particular domain:

C:>nslookup [domain removed]
Non-authoritative answer:
Name:    [domain removed]
Address:  74.54.206.194


C:>nslookup [domain removed]
Non-authoritative answer:
Name:    [domain removed]
Address:  74.53.204.214


C:>nslookup [domain removed]
Non-authoritative answer:
Name:    [domain removed]
Address:  74.54.206.194


C:>nslookup [domain removed]
Non-authoritative answer:
Name:    [domain removed]
Address:  74.53.204.214

I changed it from 74.54.206.194 to 74.53.204.214 last night. My registrar uses a TTL of 1 day, so presumably one of my ISP's resolvers queried it while I had the old address and the other after I changed it. And now it's pot luck which resolver a DNS request will be routed to (as both are hiding behind the same IP address). This is a wonderful example of failing at maintaining a coherent cache.

Aren't networks fun?

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