Questions

Here's a brief quiz about some of the essential concepts that were covered in this chapter:

1. Enumerate at least a couple of ACMs that are used in Linux.
2. Enumerate the fields of the SELinux security context.
3. What is a domain in SELinux?
4. Can you think of a significant difference between SELinux and AppArmor in terms of enforcing security policies?
5. What is the AppArmor command-line utility for retrieving the current application profiles?
6. How do we toggle an AppArmor application profile between the enforce and complain modes?
7. How many chains can you think of in the Linux kernel networking stack?
8. What is the default firewall management solution in RHEL/CentOS 8? How about Ubuntu?
9. Can you think of a best practice for designing firewall rules?
10. If you had to pick a packet filtering framework, which one would you choose? Why?