[SunRay-Users] Customizing firmware for SunRay DTUs?

Ivar Janmaat ijanmaat at xs4all.nl
Tue Mar 23 17:25:12 EET 2010

Hello Torsten,

Are all sunrays placed under a common domain?
All Sun Ray get their domain and DNS servers from the DHCP server.
The Sun Ray will then query the DNS server for the following names:

So if you register the sunray-servers in the top domain it should work 
out of the box.


Torsten Kasch schreef:
> Hi,
> we are currently in the process of redesigning our SunRay infrastructure and 
> need to switch from a dedicated interconnect setup to a "remote shared 
> subnet" setup for technical and administrative reasons. In the new setup we 
> will neither have control over the DHCP parameters provided to the DTUs nor 
> the DNS name space so we cannot easily configure the list of SunRay and 
> firmware servers for the DTUs.
> Deploying the "GUI firmware" and configuring each DTU manually works fine but 
> isn't really an option for 250+ terminals. Apart from that it really seems 
> attractive to not have a settings menu where a user might (accidentally or 
> intentionally) misconfigure the device.
> It would be really nice if there were some kind of mechanism that allows us to 
> generate a custom firmware that either
> - contains a fixed list of (names or addresses) of SunRay and/or firmware
>   servers to contact, or
> - issues DNS queries for the full qualified names sunray-servers.my.domain
>   and/or sunray-config-server.my.domain.
> Equipped with such a firmware, the DTUs spread across the campus would be 
> really "zero-admin" devices for us.
> So the question is: does anyone know if it is possible to get/buy such a 
> toolset that allows to create a custom firmware? Of course other hints to 
> achieve the same result are welcome as well... :-)
> cheers,
> 	Torsten
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