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Date: Sun, 7 Dec 2014 10:36:49 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: reload ssh configuration without stopping and starting the service?
Message-ID: <20141207093649.GF3810@calimero.vinschen.de>
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On Dec  7 07:45, Marilo wrote:
> I know linux has ways to reload configuration files without restarting a =
service.
>=20
> Is there a way with cygwin's sshd to reload the configuration files witho=
ut stopping and starting it.
>=20
> I know of net start sshd, net stop sshd, and I have checked cygrunsrv=20=
=20
> http://web.mit.edu/cygwin/cygwin_v1.3.2/usr/doc/Cygwin/cygrunsrv.README  =
 I see options for start stop install and remove.=20
>=20
> I don't see any way to reload configuration.

The concept of reloading configuration is not supported on the Windows
service level.  However, something like `systemctl reload' on Linux is
just a layer on top of the "real thing", too.  See the sshd.service
configuration file on Fedora:

  $ grep -i reload /usr/lib/systemd/system/sshd.service
  ExecReload=3D/bin/kill -HUP $MAINPID

So that's what really happens, systemctl calls kill -HUP on the sshd
master process.  That's what you can do as well on Cygwin, as long
as you're running a shell with admin privileges, for instance:

  $ ps -e | grep -E 'sshd|cygrunsrv'
  3116    4292    3116       1820  ?  1049583 10:29:51 /usr/sbin/sshd
  4292    3912    4292       4536  ?  1049583 10:29:34 /usr/sbin/sshd
  3912       1    3912       3912  ?  1049583 10:29:34 /usr/bin/cygrunsrv

As you can see, the sshd process started by cygrunsrv has the pid 4292,
so

  $ kill -HUP 4292

as admin should do the trick.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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