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Certificate Services and Synching with Exchange

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Subject Author Date
Certificate Services and Synching with Exchange deane.barker 08-10-2006
Posted by deane.barker on August 10, 2006, 12:54 pm
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On two separate client domains, I suddenly have a lot of people with
PocketPCs that want to synchronize with the Exchange server. (I
remember the good 'ol days when the network stopped at the firewall...
:-)

In most cases, the PocketPC is failing and complaining about a
certificate it needs from the server. I've seen this now with two
Motorola Qs and another Samsung device, all running the latest version
of the OS and ActiveSync.

A few questions to help me get my bearings:

Will installing Certificate Services and self-signing a certificate
solve this problem?

Will I need to manually export and install the certificate on the
handheld devices, or will the Exchange Server automatically issue /
distribute the certificate to the devices that attempt to connect?

Can I self-sign, or do I need to buy a certificate? I understand the
reasoning behind buying one, but will the handhelds care if the
certificate is purchased or self-signed?



Deane


Posted by Chris De Herrera on August 13, 2006, 3:44 pm
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Hi,
A self signed cert will work if you want to use that. However you will have
to install it on every device. If you purchase a public cert it will work
without this requirement.

See http://www.pocketpcfaq.com/faqs/digital_certificates.htm for other
issues related to using digital certificates.

--
Chris De Herrera
http://www.pocketpcfaq.com
http://www.tabletpctalk.com
http://www.pocketpctalk.com
http://www.mobilitytalk.com

ActiveSync 4.x Troubleshooting Guide -
http://www.pocketpcfaq.com/faqs/activesync/tshoot-as4x.htm

> On two separate client domains, I suddenly have a lot of people with
> PocketPCs that want to synchronize with the Exchange server. (I
> remember the good 'ol days when the network stopped at the firewall...
> :-)
>
> In most cases, the PocketPC is failing and complaining about a
> certificate it needs from the server. I've seen this now with two
> Motorola Qs and another Samsung device, all running the latest version
> of the OS and ActiveSync.
>
> A few questions to help me get my bearings:
>
> Will installing Certificate Services and self-signing a certificate
> solve this problem?
>
> Will I need to manually export and install the certificate on the
> handheld devices, or will the Exchange Server automatically issue /
> distribute the certificate to the devices that attempt to connect?
>
> Can I self-sign, or do I need to buy a certificate? I understand the
> reasoning behind buying one, but will the handhelds care if the
> certificate is purchased or self-signed?
>
>
>
> Deane
>



Posted by deane.barker on August 14, 2006, 1:05 am
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Thanks, Chris.

I did get this working after all. To answer my own questions:

1. Yes, installing the cert and self-signing worked, but only because
my device allowed it. During my research, I found that a lot of
devices do not allow self-signed certs because they don't trust the
root. Luckily, the first device I had to work with doesn't have that
problem.

2. Yes, I had to manually export and install it, but it was trivially
simple. You export the cert from the MMC to a .cer file. Manually
transfer that to the device, and double-click it.

3. See #1.

Deane



Chris De Herrera wrote:
> Hi,
> A self signed cert will work if you want to use that. However you will have
> to install it on every device. If you purchase a public cert it will work
> without this requirement.
>
> See http://www.pocketpcfaq.com/faqs/digital_certificates.htm for other
> issues related to using digital certificates.
>
> --
> Chris De Herrera
> http://www.pocketpcfaq.com
> http://www.tabletpctalk.com
> http://www.pocketpctalk.com
> http://www.mobilitytalk.com
>
> ActiveSync 4.x Troubleshooting Guide -
> http://www.pocketpcfaq.com/faqs/activesync/tshoot-as4x.htm
>
> > On two separate client domains, I suddenly have a lot of people with
> > PocketPCs that want to synchronize with the Exchange server. (I
> > remember the good 'ol days when the network stopped at the firewall...
> > :-)
> >
> > In most cases, the PocketPC is failing and complaining about a
> > certificate it needs from the server. I've seen this now with two
> > Motorola Qs and another Samsung device, all running the latest version
> > of the OS and ActiveSync.
> >
> > A few questions to help me get my bearings:
> >
> > Will installing Certificate Services and self-signing a certificate
> > solve this problem?
> >
> > Will I need to manually export and install the certificate on the
> > handheld devices, or will the Exchange Server automatically issue /
> > distribute the certificate to the devices that attempt to connect?
> >
> > Can I self-sign, or do I need to buy a certificate? I understand the
> > reasoning behind buying one, but will the handhelds care if the
> > certificate is purchased or self-signed?
> >
> >
> >
> > Deane
> >


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