Articles

On-Screen  

A monitoring system helps avoid unpleasant surprises during operations, but admins need to modify existing solutions to fit a containerized world.

Stacking Up  

Abstraction layers are the alpha and omega in the design of complex architectures. The Linux Storage Stack is an excellent example of well-coordinated layers. Access to storage media is abstracted through a unified interface, without sacrificing functionality.

Locked Down  

We look at some common sense tips and open source tools for securing IoT devices.

Thing Minder  

Although the MQTT protocol is usually associated with the Internet of Things, it also works in some very different situations, such as monitoring, for example.

Everything Under Control  

OpenQRM is a web-based, open source, data center management and cloud platform that offers many popular Linux tools with no major configuration overhead. We show you how to use it.

The Scribe  

Nmap does a great job with standard penetration testing tasks, but for specific security analyses, you will want to develop your own test scripts. The Nmap Scripting Engine makes this possible.

The new office  

We show how to set up Google Apps for Work and how to configure them for company use.

Recon  

The recon-ng web reconnaissance framework is an important tool in penetration testing.

Slimming System  

Deduplicating filesystems like SDFS store redundant data, such as that created by backups, only once, thereby saving valuable disk space. Additionally, the filesystem can distribute the data to be stored across multiple computer nodes.

Not Just Addresses  

Even if you don't have to have DHCP on your IPv6 network, you might want it anyway. Dhcpy6d is a promising DHCP option for IPv6.