Articles

Lead Image © Ioannis Kounadeas, Fotolia.com

Lead Image © Ioannis Kounadeas, Fotolia.com

Troubleshooting and analyzing VoIP networks

A special VoIP analyzer lets you control the available bandwidth and quality of voice transmission by monitoring relevant network parameters.

Protect Azure resources with Network Security Groups

Security segmentation into zones has long been the norm in data centers. Microsoft Azure Network Security Groups offers this kind of granular defense-in-depth security, including multilevel configuration of access rules.
Photo by Ray Aucott on Unsplash

Photo by Ray Aucott on Unsplash

OCI containers with Podman

The Podman alternative to Docker is a daemonless container engine with a run time that executes on request in root or user mode.
Lead Image © Sergejus Bertasius, 123RF.com

Lead Image © Sergejus Bertasius, 123RF.com

Domain name resolution with DNS over HTTPS

The new DNS over HTTPS standard from the Internet Engineering Task Force is meant to eliminate some of the known vulnerabilities of the Domain Name System.
Photo by Almos Bechtold on Unsplash

Photo by Almos Bechtold on Unsplash

Getting started with the Apache Cassandra database

The open source Apache Cassandra database claims to be fail-safe, economical, highly scalable, and easy to manage. A few exercises show whether it lives up to its advertising.
Lead Image © sandra zuerlein, Fotolia.com

Lead Image © sandra zuerlein, Fotolia.com

Arm yourself against cloud attacks

We present approaches and solutions for protecting yourself against attacks in the cloud.
Lead Image © Lucy Baldwin, 123RF.com

Lead Image © Lucy Baldwin, 123RF.com

Logical Bombs for Fun and Benchmarking

The admin can generate load a number of ways with shell commands.
Lead Image © lightwise, 123RF.com

Lead Image © lightwise, 123RF.com

Samba pitfalls in daily operation

Once you install Samba, you can still encounter errors, problems, and inconsistencies that plague your file server. We address some of these issues.
Lead Image Photo by Pierre Bamin on Unsplash

Lead Image Photo by Pierre Bamin on Unsplash

Test JavaScript programs with Karma

Web developers can test increasingly complex JavaScript applications in multiple browsers with the Karma testing environment.
Lead Image © Andrey KOTKO, 123RF.com

Lead Image © Andrey KOTKO, 123RF.com

Static code analysis finds avoidable errors

Static code analysis tools like JSLint, Splint, RATS, and Coverity help you find code vulnerabilities.