Weird encryption requirement with cups-1.2.x

[Kurt Pfeifle]

Daniel Kasak <dkasak at nusconsulting.com.au> wrote (Monday 03 July 2006 02:37):

> I just upgraded to cups-1.2.1 on my print server ( a 350 Mhz G3 ... it
> took quite some time to build cups, ghostscript, gimp-print, etc ), and
> I can't connect to the web admin thing to do anything :(
> 
> I removed my old cups *completely* ( including /etc/cups ) and installed
> the default /etc/cups/cupsd.conf
> 
> I then allowed 192.168.1.* to connect and do admin stuff, restarted
> cups, and connected from my laptop with firefox.
> 
> Cups detected my printer ( Epson R800 ) and offered a link to set it up.
> When I got to the page where you select a PPD, the correct PPD was
> already selected. When I hit the 'add' button, I get a message saying
> that I have to connect to an https server, and my browser was redirected
> to an https server, but with my fully qualified hostname ( which fails
> because only the local network is allowed to connect ).
> 
> I then edited my /etc/hosts file on the print server, and fully
> qualified hostname ( I left the internal name that's in my laptop's
> /etc/hosts file ), and tried again. I got a *little* further. I was
> redirected to the correct address, but then Firefox told me that it was
> unable to connect to the server, because it couldn't figure out an
> encryption method that both server & client understands. I assure you
> that encryption works with Firefox - I use it to connect to a fair few
> encrypted sites already. I checked in about:config and everything that
> had anything to do with encryption was already enabled.
> 
> I then downloaded and installed QT and Opera. I went through the same
> process. Using Opera, the web admin pages loaded a LOT slower - I waited
> for about 5 minutes while the images for each button loaded. When I
> finally got to the page where I hit 'add' to connect a PPD to the
> printer, I got redirected to the https site, and then I got a 404 error.
> 
> I checked on the server, and the cupsd process had died. I looked in the
> error log, and there was an error along the lines that cups had died,
> and I should turn up the logging level to 'debug'. I did that, restarted
> cups, went through the whole process again, and cups died again, but
> didn't say anything further in the error log.
> 
> I tried a few more times with Firefox and Opera. Firefox always says it
> can't find a common encryption method to use. Opera always crashes cups.
> 
> I have also tried commenting out the line that says 'Encryption
> Required' in the Admin location ( and restarting ). This has no effect -
> I am always forced to use encryption when adding a printer.
> 
> Any ideas?

It will definitely help to see the complete output of 

    grep -v ^# /etc/cups/cupsd.conf | grep -v ^$

(that's the cupsd.conf sans comments and empty lines). What exactly
was the version you used? The 1.2.1 release source tarball? Or a 
checkout from subversion?

Cheers,
Kurt