ADMIN - Explore the new world of system administration! Special introductory offer! Order by September 30th to save 10% off the regular subscription price! Each issue delivers technical solutions to the real-world problems you face every day. Learn the latest techniques for better:
network security
system management
troubleshooting
performance tuning
virtualization
cloud computing
on Windows, Linux, Solaris, and popular varieties of Unix.
KEY EXPERIENCE
The sys admin's daily grind: Single-packet authentication
Aug 26, 2008
Conventional, woodpecker-style port knocking is open to sniffing and brute force knocking attacks. Sending an encrypted packet with an access request to the server is safer and more modern. Learn more about Firewall Knock Operator, a.k.a. Fwknop.
Mozilla has just released version 3.0.1 of the Firefox browser; the first maintenance update removes a couple of vulnerabilities and fixes a some minor bugs.
SPAM SLAM
Comparing antispam appliances and services
Jul 11, 2008
Spam filters can help smooth the waves in your inbox, as long as they are reliable and don’t have too many side effects. We’ll show you what we found when we tested five antispam appliances and two service providers.
For many admins, the security of a web application is more important than its performance. If you have a web server with multiple users, the Suexec module can help you avoid problems associated with globally writable directories.
Firefox has a reputation of being the most innovative Web browser. We show you how to apply Firefox’s distribution-specific tools to make browsing the web safer for your children.
