Viewing the cache
Make sure the following variable is set in your named.conf so that rndc knows where to dump the data
options {
...
#Make sure the path below is writable
dump-file "/var/tmp/named.db";
...
};Note that if you are running in a chrooted environment, the directory root will be something like /var/named/chroot/
Run the following command as root
# rndc dumpdb
View the file with your favorite editor
;
; Start view _default
;
;
; Cache dump of view '_default'
;
$DATE 20080327201925
; authanswer
. 425153 IN NS A.ROOT-SERVERS.NET.
425153 IN NS B.ROOT-SERVERS.NET.
425153 IN NS C.ROOT-SERVERS.NET.
425153 IN NS D.ROOT-SERVERS.NET.
425153 IN NS E.ROOT-SERVERS.NET.
425153 IN NS F.ROOT-SERVERS.NET.
425153 IN NS G.ROOT-SERVERS.NET.
425153 IN NS H.ROOT-SERVERS.NET.
425153 IN NS I.ROOT-SERVERS.NET.
425153 IN NS J.ROOT-SERVERS.NET.
425153 IN NS K.ROOT-SERVERS.NET.
425153 IN NS L.ROOT-SERVERS.NET.
425153 IN NS M.ROOT-SERVERS.NET.
; glue
com. 79553 NS A.GTLD-SERVERS.NET.
79553 NS B.GTLD-SERVERS.NET.
79553 NS C.GTLD-SERVERS.NET.
79553 NS D.GTLD-SERVERS.NET.
79553 NS E.GTLD-SERVERS.NET.
79553 NS F.GTLD-SERVERS.NET.
79553 NS G.GTLD-SERVERS.NET.
79553 NS H.GTLD-SERVERS.NET.
79553 NS I.GTLD-SERVERS.NET.
79553 NS J.GTLD-SERVERS.NET.
79553 NS K.GTLD-SERVERS.NET.
79553 NS L.GTLD-SERVERS.NET.
79553 NS M.GTLD-SERVERS.NET.
; glue
google.com. 79554 NS ns1.google.com.
79554 NS ns2.google.com.
79554 NS ns3.google.com.
79554 NS ns4.google.com.
; glue
l.google.com. 86283 NS a.l.google.com.
86283 NS b.l.google.com.
86283 NS c.l.google.com.
86283 NS d.l.google.com.
86283 NS e.l.google.com.
86283 NS f.l.google.com.
86283 NS g.l.google.com.
; glue
a.l.google.com. 86283 A 209.85.139.9
; glue
b.l.google.com. 86283 A 64.233.179.9
; glue
c.l.google.com. 86283 A 64.233.161.9
; glue
d.l.google.com. 86283 A 66.249.93.9
; glue
e.l.google.com. 86283 A 209.85.137.9
; glue
f.l.google.com. 86283 A 72.14.235.9
; glue
g.l.google.com. 86283 A 64.233.167.9
; authanswer
www.l.google.com. 183 A 64.233.167.99
183 A 64.233.167.104
183 A 64.233.167.147
; glue
ns1.google.com. 79554 A 216.239.32.10
; glue
ns2.google.com. 79554 A 216.239.34.10
; glue
ns3.google.com. 79554 A 216.239.36.10
; glue
ns4.google.com. 79554 A 216.239.38.10
; authanswer
www.google.com. 511554 CNAME www.l.google.com.
; glue
a3.nstld.com. 172789 A 192.5.6.32
; glue
c3.nstld.com. 172789 A 192.26.92.32
; glue
d3.nstld.com. 172789 A 192.31.80.32
; glue
e3.nstld.com. 172789 A 192.12.94.32
; glue
g3.nstld.com. 172789 A 192.42.93.32
; glue
h3.nstld.com. 172789 A 192.54.112.32
; glue
l3.nstld.com. 172789 A 192.41.162.32
; glue
m3.nstld.com. 172789 A 192.55.83.32
; glue
edu. 172789 NS a3.nstld.com.
172789 NS c3.nstld.com.
172789 NS d3.nstld.com.
172789 NS e3.nstld.com.
172789 NS g3.nstld.com.
172789 NS h3.nstld.com.
172789 NS l3.nstld.com.
172789 NS m3.nstld.com.
; authauthority
oakland.edu. 3592 NS ns1.oakland.edu.
3592 NS ns2.oakland.edu.
3592 NS dns1.merit.net.
3592 NS dns2.merit.net.
3592 NS dns3.merit.net.
; glue
NS1.oakland.edu. 172792 A 141.210.2.2
; glue
NS2.oakland.edu. 172792 A 141.210.2.3
; authanswer
www.oakland.edu. 3592 A 141.210.12.15
; glue
YALE-SERVER.UCHICAGO.edu. 172789 A 128.135.249.140
; authauthority
yale.edu. 10789 NS serv1.net.yale.edu.
10789 NS serv2.net.yale.edu.
10789 NS serv3.net.yale.edu.
10789 NS serv4.net.yale.edu.
10789 NS yale-server.uchicago.edu.
; authanswer
elsinore.cis.yale.edu. 10789 A 130.132.51.8
; glue
SERV1.NET.yale.edu. 172789 A 130.132.1.9
; glue
SERV2.NET.yale.edu. 172789 A 130.132.1.10
; glue
SERV3.NET.yale.edu. 172789 A 130.132.1.11
; glue
SERV4.NET.yale.edu. 172789 A 130.132.89.9
; authanswer
www.yale.edu. 10789 CNAME elsinore.cis.yale.edu.
; glue