proxy to node based on hostname

After some searching, I found the following code that will proxy based on hostname. Unfortunately NAME::lookup/NAME::response does not return any results. I have read through the SOL on DNS resolution and tried each but without success. The result is just empty NAME_RESOLVED:

 

 

Does anyone know why the NAME::lookup does not work in the follow code:

 

when RULE_INIT {

 

 

The hostname to resolve to an IP address

 

set ::myhostname "something.domain.com"

 

 

The number of requests to use the cached DNS answer for

 

set ::max 100

 

 

Force a DNS lookup on the first request to get a current answer

 

set ::count 100

 

}

 

 

when CLIENT_ACCEPTED {

 

 

Increment the count of requests

 

incr ::count

 

 

Only look up the address every 100 resolutions

 

Modify this as needed by changing $::max in RULE_INIT

 

if { $::count >= $::max } {

 

set ::count 0

 

NAME::lookup $::myhostname

 

}

 

 

Set the selected node to the current resolved IP address and the port the client requested.

 

The port could be hard coded to any value.

 

node $::server_ip [TCP::local_port]

 

}

 

 

when NAME_RESOLVED {

 

 

log local0. "NAME_RESOLVED: [NAME::response]"

 

 

can we just use [NAME::response 0], is the response a list?

 

set ::server_ip [lindex [split [NAME::response] " "] 0]

 

}