[cups.general] Adding Encrypted Printer

[Michael R Sweet]

Sebastian James wrote:
> Is
> 
> /usr/sbin/lpadmin -p rwssl4 -E -v "ipp://209.119.222.222:631/?encryption=always" -m raw
> 
> equivalent to:
> 
> /usr/sbin/lpadmin -p rwssl4 -E -v "https://209.119.222.222:631" -m raw

Yes.  "always" means dedicated SSL/TLS.  "required" means to use the
HTTP Upgrade protocol.  Both will work for CUPS 1.2 and higher, while
only "always" works for most printers (since they don't support the
HTTP Upgrade spec...)

FWIW, you can also make a symlink to allow https URIs to work:

     ln -s ipp /usr/lib/cups/backend/https

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______________________________________________________________________
Michael R Sweet                        Senior Printing System Engineer