Security & Networking
HTTPS, security best practices, networking protocols
CORS
Cross-Origin Resource Sharing configuration and headers.
CSRF & XSS Prevention
Preventing Cross-Site Request Forgery and Cross-Site Scripting attacks.
DNS
Domain Name System records and configuration.
HTTPS & SSL/TLS
Password hashing, salting, and best practices.
JSON Web Tokens
JSON Web Tokens structure, creation, and validation.
OAuth 2.0
OAuth 2.0 authentication flows and grant types.
SSH
Secure Shell connection, keys, and configuration.
TCP/IP
TCP/IP protocol layers and networking fundamentals.