Features

Understanding Firewalld in Multi-Zone Configurations  by Nathan R. Vance and William F. Polik

Discover the power and flexibility of zones in firewalld.

Hard Drive Rescue with a Raspberry Pi and Relay  by Andrew Nii Addo

Learn how you can trigger a chain process to recover a failing hard disk.

Columns

Dave Taylor's Work the Shell   Let's Go to Mars with Martian Lander  

Kyle Rankin's Hack and /   Papa's Got a Brand New NAS  

Shawn Powers' The Open-Source Classroom   My Childhood in a Cigar Box  

Under the Sink—Guest Columnist Andrew Kirch   SNMP  

Doc Searls' EOF   Identity: Our Last Stand  

In Every Issue

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Letters  

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