Cleo VLProxy is an automated firewall proxy tool that allows you to place Cleo Harmony®, Cleo LexiCom®, or Cleo VLTrader® inside your firewall and keep your documents secure while communicating with your trading partners. It normally runs in the DMZ (demilitarized zone) and forwards requests between Cleo Harmony, Cleo LexiCom, and Cleo VLTrader inside the company (behind the firewall) and external hosts on the Internet.