[cisco-voip] Changing DNS entries in Call Manager 8.6.2

[Anthony Holloway]

The easiest way to view the license MAC, is to SSH to the server, and issue
the show status command.

Also, http://cisco.com/go/license enables you to rehost your own license
files without opening a case.  Of course, I don't guarantee you'll be
successful, but it's nice to know this option exists.

[image: Inline image 1]

Another thing to note, you will get 30 days to rehost your license before
anything bad happens to your servers, but if you're in a pinch, and you're
like on day 28 and you need like 10 more days, you can revert your change,
then make the same change again, to restart the 30 day period.

If that was confusing, let me use this example.  If my primary DNS was
1.1.1.1, and I changed it to 2.2.2.2, I would have 30 days to rehost my
licenses.  On day 28, I set the primary DNS back to 1.1.1.1, then
immediately back to 2.2.2.2, and the 30 days starts over.

Last, buy certainly not least, if you are changing DNS settings, it would
be imperative for you to consider what might happen if you changed your DNS
suffix.  I cannot speak to your environment exactly, but suffice it to say,
certificates are based on names, and names sometimes contain DNS suffixes.
You might start a chain reaction of changes, and as such you should plan
that piece out more carefully.  If you're only changing DNS server
addresses, then you can ignore this last paragraph.

Good luck.

On Mon Jan 26 2015 at 4:43:19 PM Gyrion, Larry <Larry.Gyrion at deancare.com>
wrote:

>  Looking for some guidance on updating the DNS entries on our CUCM
> cluster.  A colleague went through the process, but upon entering the
> command received a warning stating that the change would invalidate our
> licenses.  Has anybody come across this before, and if so, what was the
> proper course of action to ensure license preservation?
>
> CUCM 8.6.2
>
>
>
>
>
> Thank you,
>
> *Larry Gyrion** | Telecommunications Analyst | Information Technology*
> Dean Clinic - Corporate offices
> 1800 W. Beltline Hwy
> Madison WI. 53713
> Phone 608.294.6201 | 5406201| Fax 608.280.6852
> larry.gyrion at deancare.com | www.deancare.com
>
> *Partners who care*
>
>
>
>
>  The information contained in this e-mail message and any attachments may
> be proprietary and is intended only for the confidential use of the
> designated recipient named above. If the reader of this message is not the
> intended recipient or an agent responsible for delivering it to the
> intended recipient, you are hereby notified that you have received this
> document in error and that any review, dissemination, distribution or
> copying of this message is strictly prohibited. If you have received this
> communication in error please notify us immediately at the e-mail address
> listed above. Thank you.
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20150126/f348f091/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 16825 bytes
Desc: not available
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20150126/f348f091/attachment.png>