We are currently using CAS for multiple directory authentication. AD for internal users, AD LDS for external users. I've read that NLB is a possible solution, but wondering if this is possible with SRV records, and how about you would correctly configure that. With our AD directory, I can bind with olddomain.local, and hit any of the DCs in the domain. We don't want to hardcode servernames into CAS, so the end goal is to bind with LDSdomain.gov. nslookup -type=srv _ldap._tcp.LDSdomain.gov returns _ldap._tcp.LDSdomain.gov SRV service location: priority = 0 weight = 100 port = 1025 svr hostname = server01 _ldap._tcp.LDSdomain.gov SRV service location: priority = 0 weight = 200 port = 1025 svr hostname = server02