I believe I have the same issue, I have package cups 1.6.2-1ubuntu5.
When I try and do any admin task via the web interface, I get:
E [15/Sep/2013:18:51:03 +0800] [Client 11] Unknown MD5 username "rob"
In my cupsd.conf file, I have the following (relevant bits only):
DefaultAuthType BasicDigest (this machine is visible on a domestic LAN only)
Require user @lpadmin (in various locations that previously had "require user @SYSTEM")
I've tried the workarounds mentioned above, but these have not fixed the problem for me.
In /var/log/kern.log, I'm seeing lots of the following: Sep 15 18:50:25 robs-computer kernel: [ 3865.265435] type=1400 audit(1379242225.411:40): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=18814 comm="apparmor_parser" Sep 15 18:50:25 robs-computer kernel: [ 3865.265732] type=1400 audit(1379242225.411:41): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=18814 comm="apparmor_parser"
I believe I have the same issue, I have package cups 1.6.2-1ubuntu5.
When I try and do any admin task via the web interface, I get:
E [15/Sep/ 2013:18: 51:03 +0800] [Client 11] Unknown MD5 username "rob"
In my cupsd.conf file, I have the following (relevant bits only):
DefaultAuthType BasicDigest (this machine is visible on a domestic LAN only)
Require user @lpadmin (in various locations that previously had "require user @SYSTEM")
I've tried the workarounds mentioned above, but these have not fixed the problem for me.
In /var/log/kern.log, I'm seeing lots of the following: 5.411:40) : apparmor="STATUS" operation= "profile_ replace" name="/ usr/lib/ cups/backend/ cups-pdf" pid=18814 comm="apparmor_ parser" 5.411:41) : apparmor="STATUS" operation= "profile_ replace" name="/ usr/sbin/ cupsd" pid=18814 comm="apparmor_ parser"
Sep 15 18:50:25 robs-computer kernel: [ 3865.265435] type=1400 audit(137924222
Sep 15 18:50:25 robs-computer kernel: [ 3865.265732] type=1400 audit(137924222