[mythtv-users] Changing Backend from Localhost to IP

[Michael T. Dean]

On 02/21/2010 02:06 PM, Mark Goldberg wrote:
> I've got a combined frontend / backend that has localhost specified in
> the various setups. I want to add another frontend and it appears that it
> is necessary to change the master backend from localhost to it's static
> IP address. I already changed the database to allow access from other
> machines on the network and added the new frontend. It added a new
> set of settings for the new frontend that could be seen in mythweb, but
> after a restart, myth is broken, with no recorded programs seen, and
> mythweb has the message at the top:
> User Notice at /var/www/html/mythweb/classes/MythBackend.php, line 102:
> Unexpected response to MYTH_PROTO_VERSION '50':
>
> I did not make any changes yet to myth setup on the master fe/be but it does
> seem that adding another fe to the database has messed things up.
>
> I restored the database to what it was before adding the new frontend and
> things seem to be OK, but I'd like to know how to do this correctly.
>
> I found the following:
>
> http://www.mythtv.org/docs/mythtv-HOWTO-23.html#ss23.14
>
> which addresses most of this change, but does not mention the following
> places.
>
> 1.
> Mythtv Setup
> General
> Host Address Backend Setup
>
> Local Backend (localhost.localdomain)
> IP Address (currently 127.0.0.1)
>
> Master Backend
> IP Address (already set to static ip of combined fe/be)
>
> 2.
> Frontend Setup
> General
> Database Configuration 1/2
> Hostname (currently localhost)
>
> I've got two questions:
>
> Is the doc above still valid for 0.22-fixes?

Actually, it was specifically updated for 0.22.

>   Some of the references to
> it in the archives
> are not exactly correct and I had to find it.
>
> What changes in the two setups above need to be done and in what order, combined
> with the database changes in the Howto?
>
> Thanks for any insight.
>    

You can not have 127.0.0.1 /anywhere/ in the MythTV configuration if you 
have more than one host involved.  Therefore, change the master backend 
IP address to the real (routable) address of the master backend.  Then, 
on /every/ host, change the "this" backend IP address to the real 
(routable) address of the current host (this on the master backend /and/ 
the remote frontends/backends).

Also, you'll likely want a real hostname for the master backend (as well 
as all remote hosts), so change the localhost.localdomain to something 
more appropriate.

All of the above is in your 1. above.  If you do that, 2. won't need 
changing (or, at the least, when it automatically prompts you for the 
information on startup, just type in the same values you used in 
mythtv-setup for the hostname and IP addresses).

Mike