Backtrack 4: Information Gathering: DNS: LBD – Check a domain for load balancing
The next tool up for review in the DNS section of the Backtrack 4 menu is a short script called lbd.sh. This is a small shell script with only one purpose and that is to check whether a domain is using load balncing. A common host in front of a bank of Web servers may be a load-balancing device or a Web redirector, so this information can be good to know.