Dev/prod parity achieved with Spring Testcontainers! Reduce testing risks & ensure accurate results by containerizing databases, message brokers & more. Learn how to write robust integration tests with a production-like environment.

Port knocking vulnerable to brute-force attacks, replay attacks & DoS. Mitigate with one-time passwords, ban IP after failed attempts & validate sequence freshness.

Firewalls aren't foolproof but can be cleverly used with Port Knocking, a method that gives authorized users secret steps to gain access by temporarily opening ports for a limited time.