cupsd no longer allows using cname (alias) mustuse hostname

[scott henry]

thanks, that fixed it!

When I went to edit the conf file, I noticed that I even had

  Listen print:631

and it didn't....

-- scott henry

> You are running into the (relatively new) DNS rebinding attack =
> protection code. Sadly, while we do our best at startup we don't always =
> catch all of the aliases for a given server. To work around this, add =
> ServerAlias directives to your cupsd.conf file, either the "allow =
> anything" version:
>
>     ServerAlias *
>
> or one per hostname, e.g.:
>
>     ServerAlias name1.example.com
>     ServerAlias name2.example.com
>     ServerAlias name3.example.com
>
> On Mar 13, 2011, at 5:39 PM, scott henry wrote:
>
> > I was running debian Lenny on my server, and had a hostname alias =
> (CNAME) setup
> > using dnsmasq (since I had to move the printer around, it was easier =
> to
> > move the alias than to change the /etc/cups/client.conf on every other =
> computer
> > on the network). Lenny was running version 1.3.8. I upgrade the server =
> to
> > debian Squeeze, which is running cups v1.4.4, and I can no longer use =
> the
> > alias to access the printer server, I must use the hostname of the =
> server.
> > If I use the hostname, things work:
> >=20
> > $ lpstat -h filess:631 -t
> > scheduler is running
> > system default destination: hp940c
> > device for hp940c: usb://HP/DESKJET%20940C?serial=3DXXXXXXXXXXXXX
> > device for PDF_to_file: cups-pdf:/
> > hp940c accepting requests since Sun Oct 28 12:27:34 2007
> > PDF_to_file accepting requests since Wed Oct  3 11:28:25 2007
> > printer hp940c is idle.  enabled since Sun Oct 28 12:27:34 2007
> > printer PDF_to_file is idle.  enabled since Wed Oct  3 11:28:25 2007
> >=20
> > $ lpstat -h print:631 -t
> > scheduler is running
> > no system default destination
> > lpstat: Bad Request
> > lpstat: Bad Request
> > lpstat: Bad Request
> > lpstat: Bad Request
> > lpstat: Bad Request
> >=20
> > And I get similar bad behavior on other commands or using the web =
> admin
> > (note that the server is headless). All of the machines on this =
> network
> > are Linux or Mac OSX.
> >=20
> > The error_log file shows:
> > E [13/Mar/2011:17:31:22 -0700] Request from "192.168.55.24" using =
> invalid Host: field "print"
> > however that is a valid CNAME for the host, and it works for every =
> other use.
> >=20
> > Is this a configuration error on my part? I can't find anything about =
> this
> > in the docs or searching this site, though I might be looking for the =
> wrong
> > thing. I want my old behavior back!
> > _______________________________________________
> > cups mailing list
> > cups at easysw.com
> > http://lists.easysw.com/mailman/listinfo/cups
>
> ________________________________________________________________________
> Michael Sweet, Senior Printing System Engineer, PWG Chair
>