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Re: How Unix manages processes in userland
On Fri, 6 Dec 2013 08:42:19 +0000
David Holland <dholland-tech%netbsd.org@localhost> wrote:
> I think if we want to improve the state of the art in this regard the
> way to do it is to look at what a "service" is (in the sense of things
> like "service nfsd start", not /etc/services) and try to come up with
> some abstractions that make sense and aren't oversimplified or
As a sysadmin, I often care less about the internal details, and more about
what a system provides. What I want to see:
1) Easy to define/install a new service
2) Easy to manipulate a service (enable/disable/restart/etc)
3) Easy to query a service's state.
IMHO, #3 is the ticky part. People often assume things are 'up' or 'down' and
ignore the scope of all the other failures in between.
I think the question of what a service is, is in fact simple: anything in
userland you can configure on or off, and anything userland that might break.
Daemons, firewall state, inetd-driven processes, possibly even network
interfaces and filesystems are fair game.
Aaron B. <aaron%zadzmo.org@localhost>
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