I have a new RedHat print server running 2.6.18-128.1.6.el5. I am
testing printing across to a RedHat system running 2.4.21-58.ELsmp
and a Mac system running 10.5.6
I originally started with the system-config-printer to install the
print queues. For each print queue Under Settings I checked
enabled
accept
shared
Under Access Control
I have set Allow everyone except - there are no exceptions
listed.
When this did not allow printing across the network to the server,
I started editing /etc/cups/cups.conf. I do restart cups after each
change in cupsd.conf
The current contents of cups.conf is
MaxLogSize 20000
# Show troubleshooting information in error_log.
LogLevel debug
SystemGroup sys root
# Allow remote access
Port 631
Listen /var/run/cups/cups.sock
# Enable printer sharing and shared printers.
Browsing On
BrowseOrder allow,deny
# (Change '@LOCAL' to 'ALL' if using directed broadcasts from another
subnet.)
BrowseAllow @LOCAL
BrowseAddress @LOCAL
BrowsingLocalProtocols CUPS
BrowseShortNames yes
DefaultShared yes
UseNetworkDefault no
Allow ALL
AuthType None
AuthInfoRequired none
<Location />
Allow From *.subnet.edu
Allow From particularcomputer.edu
# Allow shared printing...
Order allow,deny
Allow all
</Location>
<Location /admin>
Encryption Required
# 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-Noti
fications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-
Job CUPS-Move
-Job>
Order deny,allow
</Limit>
<Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-
Class CUPS-Del
ete-Class CUPS-Set-Default>
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-P
rinter Restart-Printer Shutdown-Printer Startup-Printer Promote-Job
Schedule-Job-Af
ter 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 allow,deny
</Limit>
<Limit All>
Order allow,deny
</Limit>
</Policy>
cupsctl
MaxLogSize=20000
SystemGroup=sys root
BrowsingLocalProtocols=CUPS
BrowseShortNames=yes
DefaultShared=yes
UseNetworkDefault=no
AuthType=None
AuthInfoRequired=none
_debug_logging=1
_remote_admin=0
_remote_any=1
_remote_printers=1
_share_printers=1
_user_cancel_any=0
With these settings, the client RedHat system is still getting the
message that
Network host 'name' is busy, down, or unreachable; will retry in 30
seconds.
The client Mac gets the message:
Printer Paused. Yesterday it was getting that access was forbidden.
The cups error_log on the Mac contains
cupsdReadClient: 14 POST / HTTP/1.1
D [07/May/2009:08:38:32 -0400] cupsdAuthorize: No authentication data
provided.
D [07/May/2009:08:38:32 -0400] Get-Printer-Attributes ipp://localhost/
printers/test
D [07/May/2009:08:38:32 -0400] cupsdProcessIPPRequest: 14
status_code=0 (successful-ok)
On the server, I get the following errors at boot time:
May 5 16:10:14 geops2 cupsd[11379]: *** WARNING *** The programme
'cupsd' uses the
Apple Bonjour compatiblity layer of Avahi.
May 5 16:10:14 geops2 cupsd[11379]: *** WARNING *** Please fix your
application to
use the native API of Avahi!
May 5 16:10:14 geops2 cupsd[11379]: *** WARNING *** For more
information see <http
://0pointer.de/avahi-compat?s=libdns_sd&e=cupsd>
D [07/May/2009:08:40:10 -0400] Report: jobs-active=0
D [07/May/2009:08:40:10 -0400] Report: printers=102
D [07/May/2009:08:40:10 -0400] Report: printers-implicit=0
D [07/May/2009:08:40:10 -0400] Report: stringpool-string-count=81388
D [07/May/2009:08:40:10 -0400] Report: stringpool-alloc-bytes=33880
D [07/May/2009:08:40:10 -0400] Report: stringpool-total-bytes=1384952
D [07/May/2009:08:40:10 -0400] cupsdNetIFUpdate: "lo" = localhost...
D [07/May/2009:08:40:10 -0400] cupsdNetIFUpdate: "eth0" = serversname...
D [07/May/2009:08:40:10 -0400] cupsdNetIFUpdate: "lo" = localhost...
D [07/May/2009:08:40:10 -0400] cupsdNetIFUpdate: "eth0" =
fe80::222:19ff:fe2b:7ccc%
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