Re: EFS certificate renewal

From: Miha Pihler (mihap-news_at_atlantis.si)
Date: 07/29/04

  • Next message: Steve Duff [MVP]: "Re: SBS remote access issue" 
    Date: Thu, 29 Jul 2004 23:31:32 +0200

    Hi Jason,

    my answers are in-line. I hope they help,

    "Jason Darst" <jason_register20002yahoo.com> wrote in message
    news:Xns9535A60259B9jasonregister2000yah@207.46.248.16...
    > We use EFS in our organization and have a Windows 2003 Enterprise CA
    > issueing the certificates for it. We are approaching the renewal time
    > and I was looking for some details about how Windows 2000 or Windows XP
    > handles the renewal process from the client. I know the high level of
    > once the renewal period is reached, if auto-enrollment and renewal is
    > allowed in group policy the computer will request a renewal
    >
    > The questions come in because we have laptops that go for a long period
    > of time not connected to our network. So the following questions arise:
    >
    > What triggers a renewal request? Access of an EFS certificate? Login to
    > the PC? First bootup? Change in network interfaces? Change in IP
    > address?

    Group Policy. When client boots up, it will look for DC to connect to.

    > If the computer is not connected when the renewal period is first
    > reached, what happens?

    Nothing. Again client tries to connect to DC and update group policy and
    perform tasks defined in group policy.

    > If the first renewal request is not successful because the Enterprise CA
    > is not reachable (laptop is external to the network at the time) will it
    > retry?

    Yes, it will "retry" -- or better said it will try to renew once it can
    connect to DC and CA server.

    > If it retries, what is the trigger for it to retry and how often does it
    > do it?

    I would say, till it has a valid certificate -- but it can depend on your
    settings...

    > If the expiration period is reached, and group policy says it is to use a
    > specified Enterprise CA and that CA is not reachable, will it still
    > generate a self signed certificate?

    Yes.

    > Any answers to these questions would be much appreciated. The technet
    > documentation I can find just doesn't go to this level of detail. And
    > I'm worried that I'm going to have laptops that are sporadically
    > connected missing their renewal chances and issueing self signed
    > certificates, whicih would be a mess.
    >
    > Thank you.

  • Next message: Steve Duff [MVP]: "Re: SBS remote access issue"

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