glider
glider is a forward proxy with multiple protocols support
...Flexible proxy & protocol chains. Load balancing with the following scheduling algorithm, rr: round robin, ha: high availability, lha: latency based high availability, dh: destination hashing. Rule & priority based forwarder choosing: Config Examples. DNS forwarding server. Force upstream querying by TCP. Association rules between dns and forwarder choosing. Association rules between dns and ipset. dns cache support. Custom dns record. IPSet management (linux kernel version >= 2.6.32). Add ip/cidrs from rule files on startup. ...