Today's topic of the #90DaysOfDevOps challenge is file permissions and Access Control Lists (ACL) in Linux.
The tasks covered in today's challenge include: Basic file permissions, permission management script, ACL implementation, ACL permission script, special permissions, and permission backup.
Key takeaways from today's challenge include the importance of file permissions for security, the use and benefits of ACL for granular access control, the purpose of special permissions, and the significance of regular permission backups.
This is Day 6 of the #90DaysOfDevOps journey, focusing on Linux, DevOps, security.