[cups] Proxying IPP requests

[Michael Sweet]

Alex,

At this time there is no supported way to do IPP over a proxy with CUPS.  Conceptually you could do this with DNS/host file tricks (where the local hosts file or DNS server points clients to a proxy server for all printers, which then forwards requests to the actual printer), and I'm aware of a few people that use ssh port forwarding, but that's about it.

(as for the "why", it is mainly because proxy servers typically do not like proxying POST requests containing gigabytes of upstream data, and some still lack proper support for chunking...)


> On Apr 27, 2017, at 4:29 PM, Alex Korobkin <korobkin+cups at gmail.com> wrote:
> 
> Is it possible to proxy IPP requests on Linux, or use IPP-connected
> printers via proxy?
> 
> I can't seem to figure out how to make ipptool do that, or how to make
> Linux printing clients do that.
> 
> -- 
> -Alex
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer