Linux whitelist-based Mandatory Access Control instead of a blacklist-based model

I’m trying to harden a Linux installation on a personal computer – I decided to try both SELinux and AppArmor as a Mandatory Access Control (MAC) to supplement the default Discretionary Access Control (DAC) that Linux comes with by default… Continue reading Linux whitelist-based Mandatory Access Control instead of a blacklist-based model

Restrict privileged users from accessing certain directories on Linux servers with Grsecurity?

My question is similar to these:

Protect sensitive data from sysadmin prying eyes
Restrict access to a specific directory on Linux

From those, I understand that SELinux could accomplish my goal. But we do not have the r… Continue reading Restrict privileged users from accessing certain directories on Linux servers with Grsecurity?

apparmor: How to enable dbus feature of apparmor (‘dbus mediation’), in the linux kernel?

Would very much like to use apparmor to restrict specific dbus communications within my system. However the following line appears in my syslog:

Dec 28 09:36:21 apex snapd[1127]: AppArmor status: apparmor is enabled but some features are … Continue reading apparmor: How to enable dbus feature of apparmor (‘dbus mediation’), in the linux kernel?