[$] A security model for systemd

Linux has many security features and tools that have evolved overthe years to address threats as they emerge and security gaps as theyare discovered. Linux security is all, as Lennart Poettering observed at the All Systems Go! conference heldin Berlin, somewhat random and not a "clean"design. To many observers, that may also appear to be the case forsystemd; however, Poettering said that he does have a vision for howall of the security-related pieces of systemd are meant to fittogether. He wanted to use his talk to explain "how the individualsecurity-related parts of systemd actually fit together and why theyexist in the first place".