Home > Articles > Operating Systems, Server > Linux/UNIX/Open Source

  • Print
  • + Share This
This chapter is from the book

Print Services

Printer sharing ranks right up with file sharing as a major motivation for networking. Network printing has definitely evolved over the years to where almost any printer can be shared over a network. However, printers have primarily been accessed through Windows workstations, and the common printing scenario involves using the Windows printer manager to direct print jobs.

Two things have changed that, for many organizations, makes network printing slightly more complex. These changes include the Internet with its ability to connect to any resource, anywhere in the world, and the emergence of Linux and its integration within the enterprise network arena. Technology from Novell and the open source community that leverages the Internet and integrates Linux printing includes Novell iPrint and CUPS.

How Internet Printing Works

Both iPrint and CUPS are based on the Internet Printing Protocol (IPP). IPP is a printing protocol that is designed to work over Internet protocol (IP) and support printer access control, authentication, and encryption. It is much more secure, especially for public networks, than earlier printing protocols. Common Unix Printing System (CUPS) was developed for the Unix and Linux communities as a standard printing system that simplifies the accessing of printers and writing of print drivers, which has historically been a problem as all variants of Unix had their own printing system. A single print driver written to CUPS can support a wide range of file formats. CUPS is an open source solution and, as of this writing, the CUPS database includes 244 drivers for 1,233 different printers.

Using CUPS, a printer can be identified using a uniform resource identifier (URI) and, if configured to do so, can be accessed from any device on the Internet. Printers can be standalone units with built-in print servers (software/hardware combinations that deliver print data to a particular printer), or can be attached to workstations (Windows, Linux, and so forth) that include the print serving software. CUPS can deliver print jobs to an attached printer, to a printer on the local area network, or to a printer connected via IP across the Internet.

Novell iPrint provides similar Internet printing capability, but also adds some useful functionality. One of the primary difficulties in printing to remote locations across the Internet is in locating and correctly identifying a specific printer. URI and uniform resource locator (URL) names are hard to keep track of. iPrint solves the problem by providing Hypertext Markup Language (HTML) web-accessible map images that provide users with the capability to graphically search or drill down to find the desired printer in a specific location. Locating a printer for remote printing is simple and intuitive. Novell iPrinter utilities allow administrators to easily create any custom printer map to give end users simple ways to find and install printers (see Figure 3.7).

Figure 3.7Figure 3.7 Novell iPrint helps locate remote printers and automatically configures the workstation for printing.

Users printing from a workstation to a network printer can only do so if the print drivers for that particular printer model have been installed and configured on that particular workstation. Remote or unfamiliar printers tend to present driver location and configuration problems, which iPrint now alleviates. When a user locates any printer hosted by iPrint, the appropriate drivers for that printer are automatically downloaded, installed, and configured and appear as part of the standard Windows printer selection list. Desired driver settings can be determined by the administrator prior to the printer being installed on the workstation. Printing across the Internet becomes as easy as printing to the printer on your desk.

How Internet Printing Is Implemented

You have multiple options for installing IPP-based printing using either iPrint or CUPS. Novell iPrint includes three components: the iPrint server software, the iPrint client, and the iPrint Map Designer. The iPrint server software installs on NetWare or Linux and handles all the IPP requests. The iPrint client is a plug-in for a standard browser that acts as a gateway, translating Windows print requests to IPP and sending those requests to the Novell IPP server. The iPrint Map Designer is a browser-based design tool that administrators can use to create a graphical representation of the location of iPrint printers.

Installing an iPrint server is accomplished via the standard install methods for each operating system. iPrint installs as part of a new server installation or at a later point using the iPrint install CD. When installed, iPrint is managed and accessible to users via a web page. To install the iPrint client, users simply go to the iPrint web page, click the Install iPrint Client option, and the client plug-in is installed automatically.

To locate a printer, users again go to the iPrint web page, navigate an iPrint map to locate the desired printer, and then click on it. The drivers are downloaded and configured on the workstation automatically. With a Windows client workstation, iPrint installs the printer in the Windows print manager, and it appears as any other local or network printer. The iPrint client is also available for Linux clients.

One of the great advantages of iPrint is that driver information for all printers is centralized. As part of iPrint setup, you create an iPrint Driver Store that maintains a collection of drivers for all types of printers. There's never a need to go looking for print drivers when a new client needs to be configured.

iPrint can be managed using Novell eDirectory, with access to printer objects and drivers based on a user's identity. Individual users, groups, or complete organizations (containers) can be granted access to individual printers or groups of printers. Novell's iManager, a browser-accessible management interface, also can be used to manage iPrint (and printer access management as well).

iPrint server works virtually the same way installed on Linux with access to IPP services via a web browser. The iPrint server includes the driver store, specific printer agents redirect printer-ready files to a printer (see Figure 3.8), and the entire solution can be managed for access through eDirectory (which also runs on Linux as well as NetWare and Windows).

Figure 3.8Figure 3.8 Novell iPrint configuration for Linux.

IT managers have the option of implementing traditional Linux printing services as well. As mentioned, Linux Internet printing is based on CUPS and provides access to printers through Linux-based printer servers and print queues. CUPS can be installed and printers administered through YaST. Printing from Linux can be done either through the Linux command line, from a graphical interface such as KDE, or from an application. Linux also supports LPRng and lpdfilter, traditional Linux printing services.

Samba, the open source Microsoft SMB/CIFS emulator, can also play a major printing role when Linux print servers and print queues are used with Windows clients. Samba allows CUPS printers to be printed to and accessed from Windows workstations, just like a common Windows or NetWare network printer. Samba handles the print job forwarding, queuing, and print management. Samba lets a Linux computer function as a Windows server by enabling the computer to provide Windows print services to end users. Samba also lets a Linux workstation function as a Windows client by enabling it to access and use Windows print services, whether they originate on a Windows server or a Linux server with Samba installed. The Samba implementation provided by Novell focuses on providing authenticated file services from the Linux server to Windows clients with access control being managed by eDirectory.

You can see that that there are multiple print options whether you are running a Linux-only shop or, like most organizations, a mixture of Windows, Linux, and NetWare. With a straight Linux data center operation, you can still enjoy the benefits of iPrint with mapped access to Internet-connected printers. Client workstations (Windows or Linux—it doesn't matter) can access printers regardless of the print server platform. Linux can access Windows print services and vice versa. iPrint simplifies locating printers, driver storage, and workstation configuration for everyone.

  • + Share This
  • 🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.

Overview


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information


To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information


Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children


This site is not directed to children under the age of 13.

Marketing


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information


If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information


Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020