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I'm running OSX Yosemite as my development machine. I run a VPS for the product I'm developing at cursiveclojure.com. Every so often (3 times now over the last month or so) my Mac somehow gets into a state where it can't resolve that domain, even though it seems to work from elsewhere and the server is available. So right now:

~/d/riddley (master)> ping cursiveclojure.com
ping: cannot resolve cursiveclojure.com: Unknown host
~/d/riddley (master)> dig cursiveclojure.com  ANY +noall +answer
; <<>> DiG 9.8.3-P1 <<>> cursiveclojure.com ANY +noall +answer
;; global options: +cmd
cursiveclojure.com. 10799   IN  MX  10 cursiveclojure.com.
cursiveclojure.com. 10799   IN  A   95.170.82.135
cursiveclojure.com. 10799   IN  TXT "v=spf1 a mx ip4:95.170.82.135 ip6:2a01:7c8:aab0:51f::1 -all"
cursiveclojure.com. 10799   IN  NS  rush.easydns.com.
cursiveclojure.com. 10799   IN  NS  nirvana.easydns.net.
cursiveclojure.com. 10799   IN  NS  motorhead.easydns.org.
cursiveclojure.com. 10799   IN  SOA dns1.easydns.com. zone3.easydns.com. 1411422284 43200 10800 1209600 10800
~/d/riddley (master)> ping 95.170.82.135
PING 95.170.82.135 (95.170.82.135): 56 data bytes
64 bytes from 95.170.82.135: icmp_seq=0 ttl=48 time=300.551 ms

A friend has confirmed that the site works fine from elsewhere. The only solution I have found is to restart my machine, flushing the DNS caches with sudo discoveryutil udnsflushcaches doesn't seem to help.

Does anyone know what's going on?

migrated from serverfault.com Jan 7 '15 at 12:00

This question came from our site for system and network administrators.

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From time to time I have the same problem - specially with my own MX server. More or less default DNS setup for this DNS entry.

Restart helps, but disconnecting and reconnecting the network cable works too. You could also try to change your network location.

Every of these solutions suck, I know. But it's ATM the fastest one before figuring out the real problem (one of the thousands other problems that came with Yosemite).

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