Securing Your Network With Free Utilities. presented at Blackhat USA 1997
by Peter Shipley,
Summary : Contrary to popular managerial belief, there is a plethora of free and useful utilities and software packages for establishing, maintaining and monitoring secure systems and networks. The trick is knowing where to find them, and implementing them in the most appropriate fashion. This session will cover: SSH, S/KEY, Tripwire, Satan 2.X, tcp_wrappers, toneloc, scotty, FreeBSD, SWAN, and other freeware solutions used to fill in a complete security picture.