On the Web - Linux Users, Old and New
Back in November 2002, Nick Moffitt wrote a brief tutorial titled “Busting Spam with Bogofilter, Procmail and Mutt” (/article/6439) for the Linux Journal Web site. He provided a Bogofilter configuration that made it easy to mark incoming messages as spam or non-spam. Nick's article still receives a number of hits as people continue to look for ways to manage their mailboxes. The problem, however, is command-line switches to Bogofilter have been reversed as of March 2003, “so they now have the exact opposite effect”. In other words, follow the original article and you'll be training your spam filter to keep the spam and ditch the legit mail. To save readers some frustration, Nick wrote a follow-up article for our Web site, “Busting Spam with Bogofilter, Procmail and Mutt, Revisited” (/article/7436). If you used Nick's first implementation or are looking for another spam-fighting tool, be sure to read his update.
If you're in charge of a network whose servers use asymmetric TCP/IP routing, you may have noticed artificial bandwidth bottlenecks as all traffic goes out one interface, leaving the other idle. In “Overcoming Asymmetric Routing on Multi-Homed Servers” (www.linuxjournal.com/article/7291), Patrick McManus explains how to use source-based routing capabilities, similar to the ones used in high-end networking gear, to improve traffic flow in server environments. Specifically, he discusses the iproute2 package, which can be used to control routing behavior as well as to “set up interfaces, control arp behavior, do NAT and establish tunnels”. As Patrick states, “the key difference in an iproute2 world is the system may contain many different destination-based routing tables instead of a single global system table.”
When William Yu and Dominique Cimafranca were given the green light to install Linux on the desktops of a pilot group at their company, they were told the work had to be completed in half a day. Plus, if the pilot group didn't like the Linux desktops, their Windows desktops needed to be reinstated just as quickly. Given the age of the machines they were working with, plus memory limitations and the presence of a decent Ethernet infrastructure, they decided thin clients would be the best approach. Their article, “Desktop Guerilla Tactics: a Portable Thin Client Approach” (www.linuxjournal.com/article/7109), details their experience with using the VNC remote display system, assembling a floppy-based distribution and setting up a fat server. Read their article on-line to see how the pilot group reacted to the new desktop.
As more and more people make the move to Linux, whether it be at work or at home, interest in end-user applications grows. In response, the Linux Journal Web site has acquired some new columnists, including Dave Phillips, Chris DiBona and Bruce Byfield, who will write regularly on such topics as Linux audio, tasks for new Linux users and OpenOffice.org. Dave's Linux audio series already has a few columns posted providing introductions to AGNULA and Planet CCRMA. His March column, “At the Sounding Edge: OpenMusic and SuperCollider3” (www.linuxjournal.com/article/7432), discusses two new Mac audio application ports to Linux.
If there's a topic or application you'd like to see covered on the Linux Journal Web site, or if you'd like to write an article, drop me a line at email@example.com.
Heather Mead is senior editor of Linux Journal.
Getting Started with DevOps - Including New Data on IT Performance from Puppet Labs 2015 State of DevOps Report
August 27, 2015
12:00 PM CDT
DevOps represents a profound change from the way most IT departments have traditionally worked: from siloed teams and high-anxiety releases to everyone collaborating on uneventful and more frequent releases of higher-quality code. It doesn't matter how large or small an organization is, or even whether it's historically slow moving or risk averse — there are ways to adopt DevOps sanely, and get measurable results in just weeks.
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|Secure Server Deployments in Hostile Territory, Part II||Jul 29, 2015|
|Hacking a Safe with Bash||Jul 28, 2015|
|KDE Reveals Plasma Mobile||Jul 28, 2015|
|Huge Package Overhaul for Debian and Ubuntu||Jul 23, 2015|
|diff -u: What's New in Kernel Development||Jul 22, 2015|
|Shashlik - a Tasty New Android Simulator||Jul 21, 2015|
- Secure Server Deployments in Hostile Territory, Part II
- Hacking a Safe with Bash
- Huge Package Overhaul for Debian and Ubuntu
- The Controversy Behind Canonical's Intellectual Property Policy
- KDE Reveals Plasma Mobile
- Shashlik - a Tasty New Android Simulator
- Home Automation with Raspberry Pi
- Embed Linux in Monitoring and Control Systems
- diff -u: What's New in Kernel Development
- General Relativity in Python