From LQWiki

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.

Contents 1 General Security 2 Physical security 3 Disk security 4 Network Security 4.1 Wireless network security 4.2 Network services 4.3 FireWalling 5 Email Security 6 See also

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)