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XDM (display manager)
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<h2 id="functions">Functions</h2> <p>XDM is used to boot an X.org based <a href="/facts/Desktop_environment/VXBpMWnG">desktop environment</a>.<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a> It can control a display directly or indirectly in order to start an X session and supports remote login.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> XDM is initialized on system startup.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> </p><p>It can be edited through the use of a configuration file, modules, or scripts.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a><a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> The configuration file is usually found in /usr/lib/X11/xdm/xdm-config.<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p> <h2 id="history">History</h2> <p>XDM is one of the earliest display managers for Linux.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> It was developed by Keith Packard after he joined the X Consortium due to his frustration using a text-based environment to try and configure X.<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> </p><p>XDM is available but unused on most systems because of its rudimentary nature.<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a> Desktop environments released afterwards tended to include their own display manager, such as dtlogin on <a href="/facts/Common_Desktop_Environment/Tama5QTW">CDE</a>.<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a> </p> <h2 id="see-also">See also</h2> <ul> <li>Free and open-source software portal</li></ul> <ul><li><a href="/facts/X_display_manager/1Y0ob6da">X display manager</a></li> <li><a href="/facts/GNOME_Display_Manager/lcrFoqL9">GDM</a></li> <li><a href="/facts/KDE_Display_Manager/cbQXcoQl">KDM</a></li></ul> <h2 id="further-reading">Further reading</h2> <ul><li>Mui, Linda & Pearce, Eric (July 1993). <i>X Window System Volume 8: X Window System Administrator's Guide for X11 Release 4 and Release 5</i> (softcover) (3rd ed.). O'Reilly and Associates. <a href="/facts/ISBN_(identifier)/15AdSPa9">ISBN</a> 0-937175-83-8.</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Impson, Jeremy (2002-01-01). "VNC, Transparently". www.linuxjournal.com. Retrieved 2024-05-13. <a href="https://www.linuxjournal.com/article/5499" target="_blank">https://www.linuxjournal.com/article/5499</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Anderson, Robin; Johnston, Andy (2002). Unix Unleashed. Sams Publishing. ISBN 978-0-672-32251-8. <a href="978-0-672-32251-8" target="_blank">978-0-672-32251-8</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Edward, Robert (2024-03-18). "What Are Display Managers and How Do They Work?". Baeldung. Retrieved 2024-05-13. <a href="https://www.baeldung.com/linux/display-managers-explained" target="_blank">https://www.baeldung.com/linux/display-managers-explained</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Quercia, Valerie; O'Reilly, Tim (1993). X Users Guide Motif R5: Motif Edition. "O'Reilly Media, Inc.". ISBN 978-1-56592-015-6. <a href="978-1-56592-015-6" target="_blank">978-1-56592-015-6</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Barkakati, Naba (2005-09-19). Red Hat Fedora Linux Secrets. John Wiley & Sons. ISBN 978-0-471-77492-1. <a href="978-0-471-77492-1" target="_blank">978-0-471-77492-1</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>Levi, Bozidar (2002-05-29). UNIX Administration: A Comprehensive Sourcebook for Effective Systems & Network Management. CRC Press. ISBN 978-1-4200-0003-0. <a href="978-1-4200-0003-0" target="_blank">978-1-4200-0003-0</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>Edward, Robert (2024-03-18). "What Are Display Managers and How Do They Work?". Baeldung. Retrieved 2024-05-13. <a href="https://www.baeldung.com/linux/display-managers-explained" target="_blank">https://www.baeldung.com/linux/display-managers-explained</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>O'Neal, Miles (1996-07-10). "Taming The X Display Manager". www.rru.com. Retrieved 2024-05-13. <a href="http://www.rru.com/~meo/pubsntalks/xrj/xdm.html" target="_blank">http://www.rru.com/~meo/pubsntalks/xrj/xdm.html</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>Gerganov, Hiks (2024-03-18). "Linux Display Managers (LightDM, SLiM, XDM, GDM, SDDM, KDM, Ly): Install and Uninstall Guide". Baeldung. Retrieved 2024-05-13. <a href="https://www.baeldung.com/linux/display-managers-install-uninstall" target="_blank">https://www.baeldung.com/linux/display-managers-install-uninstall</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>Anderson, Robin; Johnston, Andy (2002). Unix Unleashed. Sams Publishing. ISBN 978-0-672-32251-8. <a href="978-0-672-32251-8" target="_blank">978-0-672-32251-8</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> </ol>