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Apple Computing Products:
macOS - Operating System
Snow Leopard keeps dropping DNS
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<blockquote data-quote="hphoto" data-source="post: 912124" data-attributes="member: 122581"><p>Thanks for the hint. Same problem with my Macbook Pro after upgrade. Aside from sleep, applications will not resolve local domain hostnames after a few minutes after boot. Disabling and renabling DHPC in Snow Leopard would cure this problem until a few minutes later and same problem occurs.</p><p></p><p>Seems like Snow Leopard is not respecting DNS ttl value of 0 by not querying the DNS server? I use DNSMasq (in a dd-wrt router) and that is the ttl default for local domain hostnames. Use "dig myhostname any" to confirm. I modified DNSMasq ttl to 1 second by adding this option:</p><p>local-ttl=1</p><p></p><p>and I no longer experience this problem. I hope this information can help someone.</p></blockquote><p></p>
[QUOTE="hphoto, post: 912124, member: 122581"] Thanks for the hint. Same problem with my Macbook Pro after upgrade. Aside from sleep, applications will not resolve local domain hostnames after a few minutes after boot. Disabling and renabling DHPC in Snow Leopard would cure this problem until a few minutes later and same problem occurs. Seems like Snow Leopard is not respecting DNS ttl value of 0 by not querying the DNS server? I use DNSMasq (in a dd-wrt router) and that is the ttl default for local domain hostnames. Use "dig myhostname any" to confirm. I modified DNSMasq ttl to 1 second by adding this option: local-ttl=1 and I no longer experience this problem. I hope this information can help someone. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Snow Leopard keeps dropping DNS
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