Package balance

TCP load-balancing proxy server with round robin and failover mechanisms

http://www.inlab.de/balance.html

Balance is a simple but powerful generic tcp proxy with round robin
load balancing and failover mechanisms. The program behaviour can
be controlled at runtime using a simple command line syntax.

General Commands (Section 1)
balance
Balance is a simple, generic "userland" TCP proxy, which allows simple round-robin load balancing and graceful failover between several destination servers...