The NIOS appliance allows you to view certain information that is stored in the DNS cache. You can do the following:

• View DNS configuration

• View DNS cache details

• View statistics

Viewing DNS Configuration

The NIOS appliance enables you to view DNS configuration details. You can view the configuration details by using a browser. To view DNS configuration:

1. From the Data Management tab, select the DNS tab -> click the Members tab.

2. 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 { <loopback address>; 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 <loopback address> port 953
allow { <loopback address>; } 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; };

Corresponding Dashboards and Settings

• The infoblox-top-query-log-interval 60 setting logs the DNS top queries with an interval of 60 seconds.

• The infoblox-top-query-name 500 setting captures the DNS top query domain names with the limit of 500.

• The infoblox-top-query-client 500 setting corresponds to the DNS Domain Queried by Client dashboard. For more information about the dashboard, see Predefined Dashboards.

• The infoblox-top-query-rpz and infoblox-top-query-rpz-items-per-client settings are RPZ-specific settings. They correspond to the Top N Limit and Total RPZ Entries per Client fields under Grid Reporting Properties > DNS > DNS RPZ Rule Hit Configuration. For more information, see Grid Reporting Properties.

• You can also choose the number of filter options to display by using the Top N . The default is 10. For more information, see About Dashboards.

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:

1. From the Data Management tab, select the DNS tab -> click the Members tab.

2. 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:

1. From the Data Management tab, select the DNS tab -> click the Members tab.

2. Expand the Toolbar, click View -> View Cache.

You can view statistics in the DNS Statistics for Member dialog box.