Intro to Linux System Hardening

Learn essential Linux system hardening techniques in this 36-minute video from Derbycon 2012. Explore topics such as disabling unnecessary services, securing SSH, configuring firewalls, and implementing best practices for Ubuntu and CentOS systems. Discover how to change passwords, manage open ports, enable logging, and apply critical patches to enhance your Linux security posture. Gain practical insights into creating virtual hard drives, customizing system settings, and leveraging additional resources for ongoing system protection.

Intro to Linux System Hardening
The Lab
Ubuntu Open Ports
Turning off CUPS - Centos
Changing the Password
Things to change in SSHD
A few extras
Virtual Hard Drive
Change the name
Change the root password
Open UDP ports
Enable firewall
Nmap firewall + netcat
Firewall + logging
Configure sshd
Patching
Last step
Resources