Bind 8 caching problems
Gildas PERROT
perrot at FranceNet.fr
Tue Feb 8 13:50:18 UTC 2000
Hi,
Regularly, I notice some problems with my Bind 8.2.2p5 servers (one on Solaris
2.6 and one on FreeBSD 3.3). For certain zones for which they are not
authoritative, they are unable to answer to requests due to their cache.
Ex :
; <<>> DiG 8.2 <<>> @hyperbate www.livinghair.com
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;; www.livinghair.com, type = A, class = IN
;; AUTHORITY SECTION:
com. 2h17m14s IN SOA A.ROOT-SERVERS.NET.
hostmaster.internic.NET. (
2000020700 ; serial
30M ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
;; Total query time: 1 msec
;; FROM: vectra.francenet.fr to SERVER: hyperbate 193.149.97.80
;; WHEN: Tue Feb 8 10:17:29 2000
;; MSG SIZE sent: 36 rcvd: 113
The contents of the cache :
;livinghair 10496 IN SOA A.ROOT-SERVERS.NET.
hostmaster.internic.
NET. (
; 2000020700 1800 900 604800 86400 );com.;NXDOMAIN ;-$
;Cr=auth
$ORIGIN livinghair.com.
;www 10464 IN SOA A.ROOT-SERVERS.NET. hostmaster.internic.NET. (
; 2000020700 1800 900 604800 86400 );com.;NXDOMAIN ;-$
;Cr=auth
If I restart the server, the cache is emptied and the problem is solved.
It seems that the cache is not expired after the TTL of the record.
Any idea about that problem ?
How often is it suggested to restart named ?
Thanks in advance for your help. Gildas.
--
Gildas PERROT, perrot at francenet.fr __o
FranceNet, 28 rue Desaix, 75015 Paris ---_ \<,_
http://www.francenet.fr ---- (_)/ (_)
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