How to select a pool based on client's hostname?

Again, thanks for taking the time to work up that code. For the sake of simplicity, I'm going to try a version that avoids needing any data groups. This iRule is focused on matching the hostname and not the domain name, or the end of the FQDN.

 

 

when RULE_INIT {

    Log debug to /var/log/ltm? 1=yes, 0=no.
   set static::dns_debug 0
   set static::dns_server 10.10.9.8
}

when CLIENT_ACCEPTED {

    Get PTR for client's IP address
   set ptr [RESOLV::lookup @$static::dns_server -ptr [IP::client_addr]]
   if {$static::dns_debug}{log local0. "[IP::client_addr]:[TCP::client_port]: Resolved $ptr"}

    Check if a pointer record was returned
   if {$ptr eq ""}{
       No PTR, so use the VS default pool
      if {$static::dns_debug}{log local0. "[IP::client_addr]:[TCP::client_port]: No PTR!"}
  pool [LB::server pool]

   } else {

switch -glob -- [string tolower $ptr] {
   "wtscern*" { pool pool_Multum_prod }
   "wtsc4prod*" { pool pool_Multum_prod }
   "wtsc4test*" { pool pool_Multum_nonprod }
   "wtsc4cert*" { pool pool_Multum_nonprod }
   "wtsc4edu*" { pool pool_Multum_nonprod }
   "vmqa*" { pool pool_Multum_nonprod }
  }
 }
}