problems with dns-cache
 

Hello.

My dns-cache is going down every some hours as this,and when all dns are down,dns die:)

Any idea of what can be happening?

Kokolisso

[root@mail root]# dig ns

; <<>> DiG 9.2.2 <<>> ns
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13709
;; flags: qr rd ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 1

;; QUESTION SECTION:
;. IN NS

;; ANSWER SECTION:
. 515734 IN NS M.ROOT-SERVERS.NET.
. 515734 IN NS A.ROOT-SERVERS.NET.
. 515734 IN NS B.ROOT-SERVERS.NET.
. 515734 IN NS C.ROOT-SERVERS.NET.
. 515734 IN NS D.ROOT-SERVERS.NET.
. 515734 IN NS E.ROOT-SERVERS.NET.
. 515734 IN NS F.ROOT-SERVERS.NET.
. 515734 IN NS G.ROOT-SERVERS.NET.
. 515734 IN NS H.ROOT-SERVERS.NET.
. 515734 IN NS I.ROOT-SERVERS.NET.
. 515734 IN NS J.ROOT-SERVERS.NET.
. 515734 IN NS K.ROOT-SERVERS.NET.
. 515734 IN NS L.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
J.ROOT-SERVERS.NET. 602134 IN A 192.58.128.30

;; Query time: 6 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sat May 17 23:32:36 2003
;; MSG SIZE rcvd: 244