Viewing DNS Cache Entries
The NIOS appliance allows you to view certain information that is stored in the DNS cache. You can do the following:
Viewing DNS Configuration
The NIOS appliance supports View Configuration feature that enables you to view DNS configuration details. You can view the configuration details through a browser.
To view DNS configuration:
- From the Data Management tab, select the DNS tab -> click the Members tab.
- Expand the Toolbar, click View -> View Configuration.
Sample Output
include "/infoblox/var/named_conf/tsig.key";
options {
zone-statistics yes;
directory "/infoblox/var/named_conf"; version none;
hostname none; recursion yes;
listen-on { 127.0.0.1; 10.34.1.18; };
query-source address 10.34.1.18 port *; notify-source 10.34.1.18 port *; transfer-source 10.34.1.18;
minimal-responses yes; max-cache-size 536870912; infoblox-top-query yes;
infoblox-top-query-log-interval 60;
infoblox-top-query-client 500;
infoblox-top-query-name 500;
infoblox-top-query-rr-type 500;
infoblox-top-query-nxdomain 500;
infoblox-top-query-servfail 500;
infoblox-top-query-rpz 99;
infoblox-top-query-rpz-items-per-client 100;
lame-ttl 600;
# for service restart: allow_bulkhost_ddns = Refusal allow-transfer { any; };
forwarders { 10.32.0.177; };
avoid-v4-udp-ports { 2114; 2113; 2115; 8000; 8089; 9997; 2222; 7911; 7912; 8000; 8089; 9997;
8080; 9000; 9999; 9004; 2022; 3374; 3115; 1194; };
transfer-format many-answers;
};
# Worker threads: default
# Bulk Host Name Templates:
#Four Octets: "$1$2-$3-$4" (Default)
#One Octet: "-$4"
#Three Octets: "$2$3-$4"
#Two Octets: "$3$4"
include "/infoblox/var/named_conf/dhcp_updater.key";
include "/infoblox/var/named_conf/rndc.key";
controls {
inet 127.0.0.1 port 953
allow { 127.0.0.1; } keys { "rndc-key"; };
};
logging {
channel ib_syslog { syslog daemon; severity info;
};
category default { ib_syslog; }; category rpz { null; };
};
acl all_dns_views_updater_keys { key DHCP_UPDATER_default; key DHCP_UPDATER1; key DHCP_UPDATER3; };
Viewing DNS Cache Details
You can view data stored in cache for the DNS views that are configured in the NIOS appliance. You can view the details through a browser.
To view cache details:
- From the Data Management tab, select the DNS tab -> click the Members tab.
- Expand the Toolbar, click View -> View Cache.
Sample Output
;; Start view _default
;;; Cache dump of view '_default' (cache _default)
;$DATE 20121018180555
; authanswer a.test.com.23876IN A4.4.4.4
;; Address database dump
;; Dump complete
Viewing Statistics
The View Statistics feature enables you to view DNS Statistics of a Grid member. You can view statistics through a browser.
To view statistics:
- From the Data Management tab, select the DNS tab -> click the Members tab.
- Expand the Toolbar, click View -> View Cache.
You can view statistics in the DNS Statistics for Member dialog box.