System Administration Crossword

3. Files typically found in /var/log used for auditing and troubleshooting security events.
5. The user interface for access to an operating system's services; examples include bash, zsh, and sh.
6. The bootloader; securing this prevents unauthorized users from booting into single-user mode.
9. A background process that handles requests for services.
11. The command or function that determines the default permissions for newly created files.
13. The specific file in /etc/ that stores encrypted user passwords.
14. The unique name assigned to a device on a network.
16. A file that contains a list of commands to be run at specified times.
17. The standard for message logging that separates the generator from the storage.
19. Command used to change the owner and group of a file or directory.
20. A custom shortcut for a command.
22. Command used to execute programs with the security privileges of another user.
23. The unique numerical identifier assigned by Linux to each user on the system.

1. Command-line utility for querying and displaying logs from systemd-journald.
2. The core of the OS.
4. The configuration file located at /etc/ that determines which users have super privileges.
7. A shell script run every time a new interactive shell starts.
8. System configuration file that contains information about all available disk partitions and mount points.
10. The file that contains basic user information, though not the actual passwords in modern systems.
12. The conventional name of the user who has all rights or permissions in all modes on Linux.
15. A cryptographic network protocol for operating network services securely over an unsecured network.
18. A collection of users; permissions can be assigned to this entity to manage access for multiple people.
19. The utility used to change file system access permissions.
21. A permission bit set on a directory that allows only the item's owner to delete or rename files.