Dive deep into Server-Side Request  Forgery (SSRF) protection techniques for Flask applications through hands-on  implementations. Learn to prevent internal service access, cloud metadata  exposure, network security bypasses, and out-of-band data exfiltration that  compromise application security. Explore domain whitelisting strategies with  `urlparse`[9], IP range blocking, request timeout configurations, and  OWASP-recommended input validation patterns. Develop skills to create  resilient web services that properly validate, sanitize, and control external  requests while implementing allowlist-based security.