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From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: openssh installed, but ssh-daemon not starting
Date: Mon, 13 Nov 2017 10:52:25 +0100
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In-Reply-To: <20171112155156.353bb2b5@graviton.instanton> (Marco van Hulten's
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To: Marco van Hulten <marco@hulten.org>
Cc: help-guix <help-guix@gnu.org>

Hello,

Marco van Hulten <marco@hulten.org> skribis:

> It now works with the (service openssh-service-type).  I did not change
> the default configuration.  I feel a bit fuzzy about the exact keywords
> used, sometimes services take only one keyword:
>
>   (services (cons* (xfce-desktop-service)
>                    (service openssh-service-type)
>                    %desktop-services))
>
> For XFCE we use a singlet, whereas for OpenSSH a pair is used.  Must
> one use such a pair if there are (optionally) configuration parameters
> to be defined for the respective service?

This is mostly =E2=80=9Chistorical baggage=E2=80=9D: before we=E2=80=99d de=
fine a procedure like
=E2=80=98xfce-desktop-service=E2=80=99, where the current convention is to =
set users
write:

  (service TYPE CONFIG)

or

  (service TYPE)

=E2=80=98service=E2=80=99 is a record constructor: it produces a =E2=80=9Cs=
ervice=E2=80=9D object with
the given type and config.

We=E2=80=99ve started removing the =E2=80=9Cold-style=E2=80=9D service proc=
edures, but we should
keep doing that to avoid the confusion.

HTH!

Ludo=E2=80=99.