 July
2003 • Volume 12 • Number 7
Features
Securing Wireless Campus Networks •
Clark Gaylord and Steven Lee
The authors provide implementation details for a wireless access control setup,
as well as a design for user-level access based on Virtual Private Networks (VPNs).
Date Arithmetic with the Shell • Kyle Douglass and Ed
Schaefer
Schaefer and Douglass survey various tools for acquiring the number of seconds
from the Epoch, and present several techniques for performing date arithmetic
and date comparison.
Clusterpunch: Distributed Cluster Resource Monitoring •
Martin Krzywinski
Krzywinski describes Clusterpunch, a distributed execution system developed to
provide administrators and users with a means to
measure the computational availability of cluster nodes.
Monitoring Latency with Smokeping • Bill Kramp
Kramp discusses the Smokeping tool, which complements the traditional ping
utility and uses pings, http requests, or SMTP requests to the server or network
service to collect latency information.
Testing an iptables Firewall from within the Host • Edward
L. Haletky
Haletky shows how to configure an iptables firewall host with User-Mode Linux,
so it can test its own external firewall rules.
Columns
Questions and Answers • Amy
Rich
The Simplicity of Sockets •
Randal L. Schwartz
The Truth about Tapes, Backups, and Restores
• Peter Baer Galvin
Departments
Call for Papers
New Products
|
