Articles

One Step Ahead  

Nmap and Nessus can help you search for vulnerabilities on Active Directory domain controllers and shut them down. We show you how to use Nmap scans, set up Nessus, and test a DC.

Baseline  

Puppet lets you enforce consistent, secure workstation configurations by emphasizing the use of declarative infrastructure and system-level protections such as chattr and systemd to prevent unauthorized changes and support a resilient security posture.

Phone Booth  

FreePBX is a first-class replacement for commercial phone systems, even in complex setups.

Weathering the Storm  

The Kopia open source system for automating the creation and transfer of backups supports a wide range of remote storage devices, making it particularly useful as a backup tool in cloud environments. The convenient GUI for Windows installations holds its own against commercial products, despite its short development history.

Pathfinders  

We take a deep dive into two powerful tools for tracing network paths and troubleshooting connectivity issues: Test-NetConnection and mtr.

Silent Observer  

In the deep waters of scalable environments, observability is more important than ever. Coroot enters the scene with eBPF to intercept traffic and collect data that is of interest for monitoring and attack detection.

Digital Docs  

A NAPS2 PDF scanner, the C# language, and the .NET Framework set the stage for a CLI app for scanning documents.