Short Guides

• Some tips on hardening Linux Servers
• Linux Cheatsheet
• Ubuntu Hardening

Modern System Hardening

• The United States Government Configuration Baseline (USGCB)
• Common Configuration Enumerations at Mitre

Microsoft

• Microsoft Security Compliance Manager
• Mitre CCE for Windows 7
• USGCB For Windows
• usgcb gpos (Group Policy Objects)

Linux (RH Enterprise 5, but most things apply)

• Guide to the Secure Configuration of Red Hat Enterprise Linux 5
• Mitre CCE for RH5 Enterprise Linux
• USGCB for RH5 Enterprise Linux