Security

GPG (GNU Privacy Guard)

GPG allows you to encrypt, decrypt, sign and verify messages and files.

• What Is GPG?
• Why And When To Use GPG
• How GPG Works
• GPG Pitfalls
• Installation
• Testing And Configuration
• Public Key Distribution
• GPG And Mail Programs

MSEC

In this article from http://www.mandrakesecure.net/">~MandrakeSecure , Vincent Danen introduces the Mandrake Linux security system, MSEC.

• Introduction
• What Does msec Do?
• Configurable Variables
• Customizing msec With Overrides
• What Security Level To Choose?
• Default Server Activation
• Changing Your Security Level

One-Pagers

One-page articles on various security related topics.

• HTTPS And Webmin : What Is It? / Installation And Testing / Securing Webmin {Mar. 05, 02}
• Securing A POP3 Server Using stunnel Contributed by Justin Keane. Introduction / Creating A Certificate / Configuring xinetd / Checking & Client Configuration {Sept. 21, 01}

SSH

SSH provides encrypted and authenticated network connections.

• What Is SSH?
• How SSH Authentication Works
• Installing And Testing ~OpenSSH
• Generating Your Own Key Pair
• Distributing Your Key
• Keeping Keys In System Memory
• Configuring The Client
• Configuring The Server
• Copying Files With 'scp'
• Copying Files With 'sftp'
• Copying Files using 'rsync'
• Copying Files Via Tunneled FTP
• Tunneling Basics
• Tunneling POP
• Tunneling X
• Tunneling VNC
• Tunneling Linuxconf
• Tunneling Webmin