Tuesday, April 7, 2009

Tips for Hardening a System

# Keep track with the latest vulnerabilities and patch your system

# Be aware about the services running and disable unneded services and ports

# Protect running services with tcp_wrappers if possible

# On the Internet, use only secure services

# Protect running network services with netfilter firewall

# Verify open ports and firewall rules with port scans

# Protect sensitieve data exchange over the internet with encryption

# On multi-user systems, protect access to user accounts (password hashes), set correct permissions on home directories, set disk quotas, establish user policies regarding passwords, applications, data, etc.

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