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Update content/posts/linux/Desktop Linux Hardening.md

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Co-authored-by: wj25czxj47bu6q <96372288+wj25czxj47bu6q@users.noreply.github.com>
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@ -247,7 +247,7 @@ firewall-cmd --add-service=dhcpv6-client --permanent
firewall-cmd --reload
```
On some distributions, it may be possible for applications running as a `wheel` or `sudo` user to make firewall changes through polkit. To disable this, enable firewalld _lockdown mode_ with `sudo firewall-cmd --lockdown-on`.
On some distributions, it may be possible for applications running as a `wheel` or `sudo` user to make firewall changes through polkit. To prevent this, enable firewalld _lockdown mode_ with `sudo firewall-cmd --lockdown-on`.
These firewalls use the [netfilter](https://netfilter.org/) framework and therefore cannot (without the help of strict [mandatory access control](#mandatory-access-control)) protect against malicious software running privileged on the system, which can insert their own routing rules that sidestep firewalld/ufw.