CUPS server error

[atentik]

After upgrading to Karmic, my printer was nowhere to be found. I tried adding a new printer System->Administration->Printing... but whenever I do, I get the following error:

CUPS server error
There was an error during the CUPS operation: 'client-error-bad-request'

I spent about 2 hours trying to figure out what the problem might be but to no avail. I reinstall cups but nothing... Any suggestions?

[atentik]

It is a shame nobody got a clue

[atentik]

Ok, when I did

tail /var/log/cups/error_log

, I get the following error.

Request from "localhost" using invalid Host: field ""

How do I change the localhost name?

[Queue29]

Ok, when I did , I get the following error.

How do I change the localhost name?

Sounds like the update screwed your /etc/cups/cupsd.conf file. You need to open it up and fix things by hand.

Here's a generic one that I made:
http://bozosort.com/dloads/cupsd.conf

You need to edit the ip's at the bottom to match your LAN.

[atentik]

Sounds like the update screwed your /etc/cups/cupsd.conf file. You need to open it up and fix things by hand.

Here's a generic one that I made:
http://bozosort.com/dloads/cupsd.conf

You need to edit the ip's at the bottom to match your LAN.

Thanks for the information. I tried modifying my cupsd.conf file to reflect the one you sent but the error message

Request from "localhost" using invalid Host: field ""

persist. I changed the IP address as you advised. Any other alternative?

[sloopveedub]

I'm certainly no expert and arrive at this thread whilst dinking around with my own CUPS issues, but perhaps it would be helpful to post your /etc/cups/cupsd.conf file here. Could be something as simple as a typo that another pair of eyes catches.

[atentik]

I'm certainly no expert and arrive at this thread whilst dinking around with my own CUPS issues, but perhaps it would be helpful to post your /etc/cups/cupsd.conf file here. Could be something as simple as a typo that another pair of eyes catches.

Hey, thanks. That's a good idea. Here we go.

LogLevel warn
MaxLogSize 1m
SystemGroup lpadmin
# Allow remote access
ServerName 123.456.78.9
ServerAlias *
Port 631
Listen /var/run/cups/cups.sock
# Share local printers on the local network.
Browsing On
BrowseOrder allow,deny
BrowseAllow all
BrowseRemoteProtocols
BrowseAddress @LOCAL
BrowseLocalProtocols cups

DefaultAuthType Basic

<Location />
# Allow shared printing...
Order allow,deny
Allow all
</Location>
<Location /admin>
# Restrict access to the admin pages...
Order allow,deny
</Location>
<Location /admin/conf>
AuthType Default
Require user @SYSTEM
# Restrict access to the configuration files...
Order allow,deny
</Location>

<Policy default>
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job CUPS-Get-Document>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices>
AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
<Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs>
AuthType Default
Require user @SYSTEM
Order deny,allow
</Limit>
<Limit Cancel-Job CUPS-Authenticate-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>
<Policy authenticated>
<Limit Create-Job Print-Job Print-URI>
AuthType Default
Order deny,allow
</Limit>
<Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job CUPS-Get-Document>
AuthType Default
Require user @OWNER @SYSTEM
Order allow,deny
</Limit>
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
AuthType Default
Require user @SYSTEM
Order allow,deny
</Limit>
<Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs>
AuthType Default
Require user @SYSTEM
Order allow,deny
</Limit>
<Limit Cancel-Job CUPS-Authenticate-Job>
AuthType Default
Require user @OWNER @SYSTEM
Order allow,deny
</Limit>
<Limit All>
Order allow,deny
</Limit>
</Policy>

[sloopveedub]

Are you able to access the CUPS web interface?

[atentik]

Are you able to access the CUPS web interface?

Yes. I am able to do that. When I did that though, only the computers that have Ubuntu system connected to the server were able to print. All the others are unable to print, including the main server.

[atentik]

My eyes are hurting reading from the monitor everyday. Still can't print from my server. Any suggestion?