Proxy Sentinel? and Firewall Sentinel? are actually the industry's best Internet proxy server and Internet firewall solutions there are. Proxy Sentinel? and Firewall Sentinel? act as real "Protection Sentinels" in the real sense of the word. To ensure maximum Internet protection of any corporate IT network and to keep unwanted intruders outside, Proxy Sentinel? and Firewall Sentinel? are actually installed at the very entrance of where the Internet connects to the outside world and then connect in series to the network they are intended to protect.