Resources follow links to download ssh files to be unpacked and compiled. I used ssh v1.2.26, the high-water mark of v1. v2 differs in internal code and licensing. download ssh in RPM form, installable pre-compiled binaries. Easier to install, but you forego making certain configuration choices that can be set only at compile time. links among other things. MS machines need their own client to interact with sshd on a Linux server. ssh (secure shell) FAQ, frequently asked questions. getting started with ssh.

man pages for ssh, sshd, ssh-keygen and README.SSH. sudo home page, to download sudo. source of pty-redir, needed for the VPN. “Introduction to the Internet Protocols” I don't remember the last time I got this much more than my money's worth., comp.os.linux.networking: newsgroups

The Linux Network, Fred Butzen and Christopher Hilton, IDG Books Worldwide, Inc., 1998.

Practical Unix and Internet Security, Simson Garfinkel and Gene Spafford, O'Reilly & Associates, Inc., 1996.

Linux Network Toolkit, Paul G. Sery, IDG Books Worldwide, Inc., 1998.

“Post-Installation Security Procedures”, Eddie Harari, Linux Journal, December 1999.

“Transparent Firewalling”, Federico and Christian Pellegrin, “Strictly On-Line”, Linux Journal, December, 1999.