Re: [TUHS] daemons are not to be exorcised

On Mon, Mar 19, 2018 at 10:40:44PM -0600, Grant Taylor via TUHS wrote: There are also ways in which Unix is just simply deficient. For example, take syslog. It's simple, sure, but it has an extremely simple structure, and it's not nearly flexible enough for more sophisticated use cases. As a result, *many* commercial Unix systems have tried reinventing an event logging system which had more structure. Tru64 (OSF/1) had uerf. AIX had eventlog. Solaris had a structured event log as part of ILOM. And, guess what? syslog-ng came up with a set of extensions to add structure. And sytemd has come up journald. People can point at journald and laugh, and say, why so complicated? Why not the pure, simple Unix approach that was good enough for BSDh 4.3? But I'll point out that *many* commercial Unix systems had decided that syslog was not good enough, and tried to invent their own. Some that were pretty good, IMHO, and some that were a creeping horror. (And your opinion may be different than mine about which were the creeping horror. :-) So it's not so simple. Unix dind't have to deal with hardware which was hot-pluggable, for example. How you handle devices that appear and disappear after boot with a static set of device nodes in /dev is another case where different commercial Unix systems have had their own divergent idea of how to solve the system --- and of course, some completely punted and coulthdn't deal with things like USB devices at all. Early NetBSD and FreeBSD systems required a reboot when you inserted a PCMCIA card, and would crash if you ever tried to eject a PCMCIA card. You may not like Linux's solution for supporting these sorts of hardware --- but tell me: How would you hack V7 Unix to support them? - Ted