Cache problem
Wael Shahin
wael.shahin at gmail.com
Tue Jan 30 10:03:53 UTC 2007
Dear List,
I have a problem with my DNS cache which I can’t know exactly what it is.
Today a record could not be resolved and when I issued the command “rndc
flush” the server started resolving again
Here is the record I was trying to resolve
; <<>> DiG 9.3.3rc2 <<>> bluepages.com.sa
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 936
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;bluepages.com.sa. IN A
;; ANSWER SECTION:
bluepages.com.sa. 85233 IN A 207.106.22.33
;; Query time: 1 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jan 30 12:42:37 2007
;; MSG SIZE rcvd: 50
This is happening with my two servers and the two servers are described
below
Master:
OS: FC5
BIND Version: 9.3.3rc2
-------
Named.conf
-------------
options {
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
version "Get Lost";
allow-query { any; };
allow-recursion { localhost; trusted; };
minimal-responses yes;
blackhole { badguys; };
notify yes;
max-ncache-ttl 1;
allow-transfer { secondaries; };
also-notify {192.168.1.101; 192.168.10.9;}; // all zones
allow-notify { secondaries; };
recursive-clients 30000;
};
---------
Slave:
OS: RH AS 4
BIND Version: 9.2.4
Named.conf
options {
directory "/var/named"; // Working directory
pid-file "named.pid" ;
blackhole { bogusnets; };
version "Get Lost";
allow-query { any; };
allow-recursion { our-nets; localhost; };
minimal-responses yes;
notify no;
max-ncache-ttl 1;
recursive-clients 300000;
};
I have posted something like this earlier and it was solved by setting the
ncache to 1 now i think it is back again, however the named -4 didn’t really
help doing anything
I have bind V8 as well and it never faces this problem
Do I need to send more information?
Thank you
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