Bruce Smith used his Toshiba laptop running SuSE Pro v9.3 with the KLUG InFocus SVGA projector to reveal the power of the Linux CLI. He worked from the terminal window of the Gnome Desktop to give us a live demonstration. There were many good questions addressed and helpful comments exchanged.
Bruce started by showing and telling us about BASH. This is also known as the GNU Bourne Again Shell. He went through the basic commands that are needed to navigate Linux without a Graphical User Interface. Originally Linux had no GUI and the CLI was where it all happened. We saw how to look at the "man pages" to find out the command syntax and switch options. If you want to see the commands you type man –k and they appear on your screen. Bruce’s laptop only had 2,600 commands in his CLI $PATH available. WOW!
He then discussed the dynamics of alias, pipe, more, less, type, jobs, tar, su, echo $PATH, find, grep, which, and others. Unless we were going to sit there jabbering until Midnight… Thankfully, Bruce ended the presentation after a mere two hours. We barely got past the basics of the extremely powerful Linux CLI.
Eric thoroughly reviewed Thomas Greene's new book "Computer Security for the Home and Small Office." Published by Apress in 2004, the book sells for $39.99. Eric used his Sony VAIO laptop running Mandrake Linux, OpenOffice v2.0 Presentations, and the KLUG InFocus SVGA projector to make this presentation .
Tom Greene covers cybercrime, computer, and network security for The Register (www.the register.co.uk). This is an online journal whose motto is "Biting the Hand that Feeds IT". He presents a wide-ranging, practical treatment of his topic, leading to his concluding chapter, "Trust Nothing, Fear Nothing." Constantly lurking in the background and occasionally bursting to the foreground are the visions of Orwell's "1984" and Kafka's "The Trial" as Greene considers not only the risks from "script kiddies" and hackers, but also from Big Business and Big Government. Computer Security for the Home and Small Office by Thomas C. Greene http://www.apress.com/book/bookDisplay.html?bID=318
Introduction Chapter 1 - The Dark Side Chapter 2 - Vectors Chapter 3 – Social Engineering Chapter 4 - From Newbie to Power User Chapter 5 - Treasure Hunt Chapter 6 - Open Source Escape Hatch Chapter 7 - Trust Nothing, Fear Nothing Appendix A - Glossary Appendix B - Procedure, Processes, and Ports Appendix C – Online Resources
(19 Linux Enthusiasts Attending) [click on the pictures below to enlarge them]
OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol. In a continuing series of presentations focused at Linux network service administration, Adam used his laptop running SuSE Pro v9.2 and OpenOffice's Presentations software with the KLUG InFocus SVGA projector to give us an outstanding lesson in LDAP administration and advanced topics. Adam fielded questions during and after the presentation. He prepared 44 slides.
The three areas of discussion included –
Performance Tuning: * Configuring multiple caches Set cache sizes * BDB database utilities (Sleepycat) db stat, db archive, db recover, & db checkpoint The two main database files are dn2is.bdb & id2entry.bdb.
Access Control : * Access Control Info (ACI) * Access Control List (ACL) Advantages and disadvantages were discussed & how it works Security Strength Factor (SSF)
Conditional Replication & Back-LDAP: * syncrepl application Replication can include a filter * LDAP’s virtual backend Used for mangling Dit data or joining one Dit into another
(22 Linux Enthusiasts Attending) [Thanks to Robert G. Brown for providing the two pictures below.]
Tonight was KLUG’s April General Assistance Meeting. Only one install request was received for this month. The request was for a dual booting SuSE 9.2 Pro and Microsoft Windows XP Pro desktop workstation.
Andrew Thompson, KLUG’s kind Installmaster helped Tom to get SuSE 9.2 Pro installed. The target PC had an ABIT NF7 motherboard, AMD Athlon (2 GHz) XP Mobile CPU, 1 Gb of RAM, two 80 Gb Western Digital hard drives, a DVD reader, a DVD writer, and an nVidia Fx5900xt video adapter with 128 Mb of RAM. YaST performed all the install tasks with practically no need for human intervention. There were four package errors encountered. udev, evms-gui, i4l-isdnlog, and ed packages failed install.
After the initial install an update was performed and four more packages failed to install. Andrew showed Tom how to manually install these from the RPM’s. No clue why these errors were encountered. Tom also saw how to set up the root password and a user name with a login password. It was noted that you type in the user name "root" when the SuSE 9.2 GUI first boots.
Tom will get more guidance from Andrew over the next few weeks by e-mail and there is always help available from the KLUG mailing lists. He was shown the KLUG technical library and told about other tech support information sources.
While the install was going on a group gathered in the back of the room to answer general newbie questions. Questions and answers were flying at a brisk pace.