[dozzie]

And then we go back to processes, System V-like IPC (shmget()/semget()/msgget()), and network configuration subsystem (routing, firewall, bringing interfaces up or down, and the like; netlink is only a recent development, after 2000).

What was it about the mantra again?

[gpderetta]

Well, the mantra is of course an aspiration. In practice things are not always done that way, especially in the past. SysV ipc is hopefully a thing of the past though.

(I did upvote you btw)