Join Sean Colins for an in-depth discussion in this video Understanding Booleans, part of Linux: Firewalls and SELinux.
- [Instructor] As I promised before, we're going to talk…about booleans now, Booleans are kind of neat.…In SELinux, so you've got the idea of contexts,…you know that the definition of how SELinux is actually…applying security is all coming down from policies that…are written, and I didn't mention this before,…but actually, all of the SELinux kernel extensions…and the reference policies and all of this stuff,…the best source of information about this…is all over at the NSA, nsa.gov.…And that's because they are the original source of SELinux.…They needed a way to apply mandatory security policies…on government systems, and this is how they're doing it.…
So that's, I think, kind of interesting.…Anyway, so we talked about the policies,…but what if there's a policy set,…and there's a context set on a directory,…or a file, or maybe a port that you don't like,…that doesn't work for you.…Obviously, you're not going to rewrite the entire policy,…you're not going to rewrite into the policy.…That would be ludicrous, if you could.…
- Working with iptables
- Installing Firewalld
- Exploring zones and services
- Allowing the Apache web server
- Allowing FTP and SFTP servers
- Installing SELinux utils
- Setting discretionary or mandatory access
- Installing SELinux man pages
- Working with Booleans
- Changing context labels
- Running sepolicy
- Finding SELinux logs
- Making domains permissive
- Disabling and reenabling SELinux
Skill Level Intermediate
Linux: Multitasking at the Command Linewith Scott Simpson39m 1s Intermediate
1. Firewall Basics on Linux
2. Configuring Firewalld for Local Protection
3. SELinux Fundamentals
4. Working with SELinux
5. SELinux Troubleshooting
Next steps3m 4s
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