ltm rule command DNS enable

iRule(1)		      BIG-IP TMSH Manual		      iRule(1)



DNS::enable
       Sets the service state to enabled for the current DNS packet.

SYNOPSIS
       DNS::enable (DNS_COMPONENT)+

DESCRIPTION
       This iRules command sets the service state to enabled for the current
       DNS packet.

       Note: This command requires the DNS Profile, which is only enabled as
       part of GTM or the DNS Services add-on.

       Syntax

       DNS::enable 

	    * Sets the service state to enabled for the current DNS packet (reset
	      to default for future packets)
		 + all - all services listed below
		 + dns-express/dnsx - DNS Express
		 + dnssec - DNS security extensions
		 + gtm/gslb - Global Traffic Manager
		 + bind - BIG-IP BIND
		 + cache - DNS caching
		 + rpz - DNS Cache Response Policy Zone enforcement

RETURN VALUE
VALID DURING
       DNS_REQUEST, DNS_RESPONSE, GLOBAL_GTM

EXAMPLES
	# Only use dns express to resolve requests from a specific ip,
	# disable dns express for all other requests
	when DNS_REQUEST {
	    DNS::disable dnsx
	    if { [IP::client_addr] equals "192.168.1.245" } {
		DNS::enable dnsx
	    }
	}

HINTS
SEE ALSO
CHANGE LOG
       @BIGIP-11.0.0 --First introduced the command.  @BIGIP-11.2.0 --Added
       subcommand: cache @BIGIP-11.6.0 --Added subcommand: rpz



BIG-IP				  2017-01-31			      iRule(1)