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Old 09-29-2006, 11:04 PM   #1
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Registered: Sep 2006
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Question DNS lookup again before expiring TTL

My system configuration:
- Linux ver : embedded linux

When target system dns query to server and receive effective ip address including ttl.
But next query about after 5 min. resolver lookup again even if the TTL did not expired yet.
Where can I find the source code and fix this problem ?
Old 09-30-2006, 03:54 PM   #2
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I think that you need to install a DNS caching mechanism on your client such as dnsmasq or a full DNS server such as bind that takes the TTL into account. A resolver doesn't do that.

I use dnsmasq for what you describe and it works well.


dns, lookup, ttl

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