Security

Wikipedia structures (information) security into three parts: confidentiality, integrity and availability. This article deals with confidentiality and integrity, for securing your data's availability, see backup.

= General Security =
 * Linux Security Basics
 * Basic Linux file system attributes
 * Linux security vulnerabilities
 * Obtaining security updates
 * Community security resources
 * Identifying and disabling extraneous services
 * Check for weak passwords

= Physical security = This chapter is about Hardening against users with physical access.
 * Securing the BIOS
 * Securing LILO
 * Securing GRUB

= Disk security =
 * encrypt a disk

= Network Security =
 * SSH
 * Using SSH
 * Securing ssh
 * Configuring the OpenSSH SSH daemon
 * Use SCP and SFTP to transfer files
 * Mounting remote folders using sshfs
 * X11 forwarding with OpenSSH
 * Tunneling with OpenSSH

Wireless network security

 * Wireless network security
 * WEP
 * WPA

Network services

 * Securing Apache
 * Securing SAMBA

FireWalling

 * Firewall - Iptables, configuration, firewall software
 * Detecting portscans

= Email Security =
 * Sender Verification
 * Spam Filtering
 * detect if your mailserver is used as a spambot
 * Using GPG
 * Using MailScanner/Postfix/SpamAssassin/ClamAV in Gentoo Linux
 * Postfix with clamav-milter

= See also =
 * areas
 * Linuxsecurity.com
 * Linux Security HOWTO
 * Debian Linux Security Configuration
 * List of Linux security tools (January 3rd, 2007)