Fedora Linux

Select 'Connect to a printer on the Internet or on a home or office network,' and enter a URI in this form:

http://server :631/printers/printername

Replace server with the hostname of the CUPS server if the Windows system can resolve that hostname using DNS; if you haven't configured DNS, use the IP address instead. Replace printername with the name of the printer as it is known to CUPS.

Click Next.

Select the manufacturer and printer model, and click Next (or, if the printer drivers are on a CD, click 'Have a Disk' and select the disk location). Then click Finish to set up the printer. You can now use the CUPS printer from any Windows applications.

7.4.2. How Does It Work?

CUPS uses the Internet Print Protocol (IPP), which is based on the same HTTP protocol used by the Web. One shared virtual directory is mapped to each printer.

The CUPS configuration files are stored in /etc/cups , and the format of the main configuration file /etc/cups/cupsd.conf is very similar to the Apache configuration file (discussed in Lab 7.5, 'Using the Apache Web Server '). Printer sharing is therefore enabled and disabled using Allow and Deny directives in the same way that they would be used to control access to an Apache directory. For example, global access to the printer laser0 could be configured like this:

<Location /printers/laser0>
 Order Deny,Allow
 Allow From All
</Location>

7.4.3. What About...

7.4.3.1. ...a client that uses the older LPD protocol?

If you wish to share the printer with a client that knows only the older Line Printer Daemon (LPD) protocol, such as an older Linux/Unix system or a Windows NT system, you will need to install the cups-lpd package.

To enable the service, start the Services tool (System>Administration>Services), select the On Demand Services tab, select the checkbox labeled 'cups-lpd,' and click Save. You can also enable the service by editing /etc/xinetd.d/cups-lpd, which looks like this:

# default: off
# description: Allow applications using the legacy lpd protocol
# to communicate with CUPS
service printer
{
 disable = yes
 socket_type = stream
 protocol = tcp
 wait = no
 user = lp
 server = /usr/lib/cups/daemon/cups-lpd
}

Change the disable line to the following:

 disable = no

Save the file and restart the xinetd service:

# service xinetd restart
Stopping xinetd: [ OK ]
Starting xinetd: [ OK ]

LPD printer sharing requires the printer port 515 (printer:tcp) to be opened in your firewall.

LPD emulation is enabled globally; there is no provision to share only some printers, or to share only with certain clients

7.4.3.2. ...configuring sharing from the command line?

Fedora does not provide a facility for configuring printer sharing from the command line. The only available option is to edit /etc/cups/cupsd.conf and insert the appropriate Allow and Deny directives (or, if you're accessing from a remote system, you may want to use X tunneling via SSHsee Lab 4.10, 'Remote Management Using SSH ').

7.4.4. Where Can I Learn More?

? The CUPS manual: http://localhost:631/documentation.html

? The manpage for cups-lpd

7.5. Using the Apache Web Server

Apache is the most widely used web server and is a standard part of Fedora Core. One of the reasons that it has garnered a majority market share is that it is highly configurable and can therefore meet a wide range of web-serving needs. Despite the number of options available, Fedora Core ships Apache with a default configuration that is ready to meet most basic web-serving needs.