LPIC-3: Security - Exam 303, version 3.0

SELinux clicked after drilling these questions. Passed.

I struggled most with the access control topics - PAM and LDAP integration are more nuanced than they look. Practice questions here exposed exactly where my gaps were.

Hardest LPI exam I've sat. Worth every practice round.

Solid preparation for the threat and vulnerability assessment domain. The questions pushed me to think about tooling and methodology, not just definitions.

I've held LPIC-1 and LPIC-2 for years but 303-300 is a different animal. The certificate authority and PKI questions here forced me to understand trust chains and revocation rather than guess from context. Cleared it on the second attempt and felt I actually earned this one.

The cryptography domain covers more ground than I expected - GPG key management, cipher suites, and TLS config all in one. These questions filled the gaps my notes missed.