- Security - axim worm - https://www.zdnet.com/article/microsoft-warns-azure-customers-of-exim-worm/
- Security - Attack surface analyzer - https://github.com/Microsoft/AttackSurfaceAnalyzer
- Certification prep course ($) - https://www.oreilly.com/library/view/linux-foundation-certified/9780134783253/
- Exam nots - Linux Foundation Certified System Admin - https://github.com/simonesavi/lfcs