Hello everyone, and welcome to yet another installment of the Linux newsletter. This week, we've focused on security.
Thirty years of Unix have seen many changes, writes Shelly Powers. The essential elegance and familiar old tools have remained. In her "Today's Unix: New All Over Again," the coauthor of "Unix Power Tools, 3rd Edition," explores the state of Unix. It's easier to use, thanks to the free software and the open source movement.
An essential tool in any system administrator's toolbox is the venerable SSH utility. Far more than just a replacement for telnet, it offers a wealth of configuration options--at the price of learning some new terms and concepts. But that's why we have Dru Lavigne. This week our FreeBSD Basics columnist explains "The SSH Cryptosystem." Installation's easy with her article as your guide.
It's good to secure your network on the inside, but you also must keep out the bad guys. Glenn Graham, who runs a small colo facility out of his "bomb shelter," is thrilled with a tripartite suite of intrusion detection systems from TriSentry. Interested in catching portscanners, monitoring suspicious login activity, and scanning logs for breaches? Try "TriSentry, a Unix Intrusion Detection System."
To subscribe to the Linux newsletter (or any O'Reilly Network newsletters), visit https://epoch.oreilly.com/account/default.orm and select the newsletters you wish to receive in your user profile (you'll need to log in with your existing O'Reilly Network account -- if you don't yet have an account, you'll need to create one).
To change your newsletter subscription options, please visit https://epoch.oreilly.com/account/default.orm and click the"Manage My Newsletters" link. For assistance, send email to
Finally, Jacek Artymiak, our favorite security guru, reports from the TRUSTSECURE 2002 conference. What were the experts discussing this year? What will we be discussing next year? Favorite quote: "... one could almost see the lines of kernel code flying in the air...." Jacek also includes an interesting, if controversial idea for funding projects such as OpenBSD. Read more in "TRUSTSECURE 2002 Report".
That's all for this week. Upcoming articles include, but are not limited to, WebDAV, Falcon's Eye, independent gaming, and Linux in education.
Until next time,
Linux/Open Source/Technical Editor
Linux Multithreading Advances
Linux multithreading has traditionally lacked full POSIX compatibility. Recent development kernels have seen the addition of two competing thread replacements. Jerry Cooperstein examines the history and implementation of both NPTL and NGPT in plain English.
Top Five Open Source Packages for System Administrators
The countdown continues this week with number three, GRUB. This is the third installment in a five-part series on the most useful and widely applicable open source administrative tools, by AEleen Frisch, author of Essential System Administration, 3rd Edition.
Today's Unix: New All Over Again
Shelley Powers, coauthor of the recently released Unix Power Tools, 3rd Edition, says today's Unix is sexier and friendlier than yesterday's Unix. Gone is its tough, geeks-only image. In this article, Shelley maps out why Unix's blend of old and new has made it more easily accessible to everyone.
Running Zebra on a Unix Machine: An Alternative to a Real Router?
Iljitsch van Beijnum, author of O'Reilly's BGP, looks at whether Zebra, the host-based routing software, can be used as an alternative to a real router.
Trip Mapping with PHP
Do PHP and cartography go together? David Sklar thinks so. In this article from the PHP Cookbook coauthor, he demonstrates how to plot your trips with PHP and census data.
Return to the list of Linux Newsletters.
Return to the Linux DevCenter.
Copyright © 2009 O'Reilly Media, Inc.