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.
Planning and scheduling jobs can mean a lot of work, especially if they are spread across multiple machines. Here's a tool to make that task a lot easier.
Today R1Soft announced the beta release of Hot Copy for Linux, a command-line utility that takes instant readable and writeable snapshots of disks or volumes on any Linux server.
Aimed at small to mid-sized businesses, the Systems z10 Business Class (BC mainframe is IBM's leaner, cheaper version of the high-end mainframe released in February.
How much power is your system really using? And how much can you actually save with the new generation of energy-conserving techniques and components? This month we study the phenomenon known as Green IT.
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.
