How to configure single server to listen on multiple TCP ports

(This question was asked at AOLSERVER@LISTSERV.AOL.COM mailing lists and was answered by Dossy.)

Single instance of AOLServer can be configured to listen on more than one TCP port simple by loading the "nssock" module twice. Following example shows what modifications are necessary in aolserver config file.

Modify Socket driver module section

   #
   # Socket driver module (HTTP)  -- nssock
   #
   ns_section "ns/server/${servername}/module/nssock"
   ns_param   port            80
   ns_param   hostname        $hostname
   ns_param   address         $address

   ns_section "ns/server/${servername}/module/nssock2"
   ns_param   port            81
   ns_param   hostname        $hostname
   ns_param   address         $address

Modify Modules section

   #
   # Modules to load
   #

   ns_section "ns/server/${servername}/modules"
   ns_param nssock ${bindir}/nssock.so
   ns_param nssock2 ${bindir}/nssock.so