UbuntuHelp:UbuntuLTSPJauntyPrinting
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| This page is specific to Ubuntu versions 9.04 |
Parent: UbuntuLTSP If you find this information applicable to additional versions/releases, please edit this page and modify this header to reflect that. Please also include any necessary modifications for this information to apply to the additional versions.
目录
Printing with local applications
This howto assumes you have already performed a default LTSP installation from the Ubuntu Alternate CD with two network cards. It also assumes all these steps from the below linked pages have been performed, resulting in an LTSP setup in which each Thin Client is successfully running local applications: https://help.ubuntu.com/community/UbuntuLTSP/LTSPLocalAppsJaunty https://help.ubuntu.com/community/UbuntuLTSP/LTSPLocalAppsFirefox https://help.ubuntu.com/community/UbuntuLTSP/ThinClientHowtoNAT/ https://help.ubuntu.com/community/UbuntuLTSP/LocalAppsResolvConf Now we are ready to add printing support for local applications. We have here two cases. In first case USB printer is added directly to the LTSP server. In another case we have remote printer in CUPS server.
Case 1: Direct added local printer
Add printing support in chroot
First we need to add printing support in the chroot.
admin-ltsp5@ubuntu-ltsp5:~$ sudo chroot /opt/ltsp/i386 apt-get install cups-bsd [sudo] password for admin-ltsp5:
admin-ltsp5@ubuntu-ltsp5:~$ sudo ltsp-update-image
Add support in CUPS (Common Unix Printing Solution)
We have already added printer support in the LTSP server.
Now we need to change CUPS to accept printing from thin clients' local applications.
After the changes /etc/cups/cupsd.conf should look something similar to this:
LogLevel debug
SystemGroup lpadmin
# Allow remote access
Port 631
Listen /var/run/cups/cups.sock
# Enable printer sharing and shared printers.
Browsing On
BrowseOrder allow,deny
BrowseAllow all
BrowseAddress @LOCAL
DefaultAuthType Basic
<Location />
# Allow shared printing and remote administration...
Order allow,deny
Allow all
</Location>
<Location /admin>
# Allow remote administration...
Order allow,deny
Allow all
Encryption Required
</Location>
<Location /admin/conf>
# Allow remote access to the configuration files...
Order allow,deny
Allow all
AuthType Default
Require user @SYSTEM
</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>
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>
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 CUPS-Authenticate-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
# Only the owner or an administrator can cancel a job...
<Limit Cancel-Job>
Order deny,allow
Require user @OWNER @SYSTEM
</Limit>
</Policy>
Restart your CUPS after any changes.
sudo /etc/init.d/cupsys restart
Printing with Firefox and OpenOffice.org
Here are screenshots related to printing in localapps:
Firefox:
Openoffice:
Printed pages in CUPS:
Case 2: Printing with remote CUPS printer
If you already have a CUPS printer server, you can use it this way. Add in lts.conf file this line under Default section. In this case LTSP server is 192.168.1.102 and CUPS server 192.168.1.101.
[Default] CUPS_SERVER = 192.168.1.101
Do not use hostname of CUPS server! Even it is right in LTSP server's /etc/hosts file.
Add remote printer to the LTSP server normal way. We have in this example USB printer in CUPS server and we have added it to the LTSP server.
CUPS server:
LTSP server:
Both servers have this same kind of /etc/cups/cupsd.conf file.
LogLevel debug
SystemGroup lpadmin
# Allow remote access
Port 631
Listen /var/run/cups/cups.sock
# Enable printer sharing and shared printers.
Browsing On
BrowseOrder allow,deny
BrowseAllow all
BrowseAddress @LOCAL
DefaultAuthType Basic
<Location />
# Allow shared printing and remote administration...
Order allow,deny
Allow all
Allow 127.0.0.1
Allow 192.168.1.0
Allow 192.168.0.0
Allow @LOCAL
</Location>
<Location /admin>
# Allow remote administration...
Order allow,deny
Allow all
Encryption Required
</Location>
<Location /admin/conf>
# Allow remote access to the configuration files...
Order allow,deny
Allow all
AuthType Default
Require user @SYSTEM
</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>
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>
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 CUPS-Authenticate-Job>
Require user @OWNER @SYSTEM
Order deny,allow
</Limit>
<Limit All>
Order deny,allow
</Limit>
</Policy>
We can check, that thin client get right CUPS server for itself.
root@ltsp201:~# cat /etc/cups/client.conf ServerName 192.168.1.101 root@ltsp201:~#
We are now able to print from local application to the CUPS server.
