Cache not expiring...

Stephen Amadei amadei at dandy.net
Sun Sep 3 04:25:02 UTC 2000



Hey guys.

While I've never gotten a complaint from my users, I have a reseller
who keeps moving hosts and ips on a separate network from mine.  Then
since his customers use my dial-up and DNS, they are not seeing the DNS
changes right away.  In fact, sometimes it takes days... usually until
I rehup my named for a DNS change on my network.  His complain is that
our DNS returns old cached data for days after other DNS server's (Uu.net,
Digex, MSN, etc.) serve up the fresh data.

My bind is 8.2.2-P5 and I don't have the option "cleaning-interval" set in 
my config.  Reading the Grasshopper book, it states that versions of Bind
after 8 will default to a cleaning interval of 60 minutes, at which time
records over thier TTL will be discarded... He claims his TTL is
one day, and judging by the behavior of other servers, I tend to believe 
him... Why is my name server not discarded stale cache data?

Thanx in advance.

					----Steve
Stephen Amadei
Dandy.net CTO
Atlantic City, NJ





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