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.
Klaus Knopper is the creator of Knoppix and co-founder of the LinuxTag expo. He currently works as a teacher, programmer, and consultant. If you have a configuration problem, or if you just want to learn more about how Linux works, send your questions to: klaus@linux-magazine.com
The sys admin's daily grind: Single-packet authentication
Oct 01, 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.
Linux users and sys admins rely on the SSH secure shell for remote access and management. But SSH can do much more. This month, we explore some advanced techniques for secure communication with SSH...
more »
Free Video Archives! CeBIT Open Source Forum 2011
The presentations were streamed live from CeBIT and are now available in the Linux New Media video archive!
