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Figure 1: Virsh passes the commands on to the other libvirt package components.

Virsh Libvert Tool

With the command-line tool virsh, a part of the libvirt library, you can query virtual machines to discover their state of health, launch or shut down virtual machines, and perform other tasks – all of which can be conveniently scripted.

PowerShell Part 3: Keeping PowerShell in the Loop

PowerShell’s ability to use loops extends its reach to remote systems and performs repetitive operations.

Figure 1: Open your web browser on https://localhost:8834.

Pen Test Tips

The powerful Metasploit framework helps you see your network as an intruder would see it. You might discover it is all too easy to get past your own defenses.

Figure 1: In LR-DIMMs, all of the signal lines (including the data) run through an intermediate chip; this reduces the electrical load on the memory controller.

RAM Revealed

Virtualized systems are inflationary when it comes to RAM requirements. Storage access is faster when excess RAM is used as a page cache, and having enough RAM helps avoid the dreaded performance killer, swapping. We take a look at the current crop of RAM.

Figure 1: Windows 7 Services highlighting the disabled Windows Defender service.

PowerShell Part 2: Manipulating Services, Processes, and Commands

In this installment of our multipart PowerShell series, you learn how to control services, processes, and commands on your local and remote systems.

Figure 1: The web interface looks modern and reacts quickly thanks to Ajax.

Chive

Generations of web admins have used phpMyAdmin or SQL Buddy to communicate with their databases. Newcomer Chive has the potential to send the legacy tools into early retirement, thanks to its state-of-the-art Ajax interface and impressive feature scope.

Figure 1: Apart from RDNSS, all of the IPv6 parameters are configured correctly on Windows 7.

Autoconfiguring IPv6 Clients

Most clients on a network need both an address and some environmental information such as a name server or a web proxy. This article investigates whether a recent operating system on an IPv6-only LAN can handle this.

Figure 1: The various modes of PortSentry.

Customizing PortSentry

Do you have a sentry to keep an eye on your servers? We’ll show you how to customize PortSentry’s response to suspicious activity.

PowerShell Part 1: Retrieving System Information

Windows administrators, like Unix or Linux administrators, look for ways to perform their duties with ease and elegance through automation. PowerShell allows administrators to gather information, change Registry parameters, work with Active Directory, manipulate services, look at events, work with Windows Management Instrumentation (WMI), and much more. PowerShell is a Windows administrator’s best friend.

Figure 1: PHP Shell is recognizable as a web application.

Shell in a Browser

PHP Shell and Shell In A Box put a shell in your browser, thus facilitating web server management – even from the nearest Internet café and without SSH access.

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