Richard Chamberlain articles - 99 total
OS Updates on the Corporate Linux Desktop
Remember when please update your systems ASAP emails meant crossing your fingers? There's a better way.
Controlling Software on the Corporate Linux Desktop
Ever worked somewhere that did software audits? Remember the scrambling to uninstall unapproved tools...
Making Linux Work as a Corporate Desktop
🔒 Corporate Linux Desktop Security: The Immutable Advantage Quick take: Traditional Linux...
Prototyping Enterprise Infrastructure in Proxmox: 11+ VMs, 8 VLANs, and Ansible Automation
Building a complete SMB environment using 100% open-source tools—no proprietary licensing, no vendor lock-in. Proxmox for virtualization, OPNSense for routing/firewall, Ansible for automation, Rocky Linux for VMs.
Building Enterprise Security for Small Business with Linux and Open Source
The most dangerous phrase in the language is, 'We've always done it this way.'" — Grace Hopper For...
Is Linux Finally Ready for the Corporate Desktop?
For over a decade, people have proclaimed the "Year of the Linux Desktop." It never quite...
When One Witness Isn't Enough: Remote Verification for AIDE
Building a Distributed Integrity Network with Remote Backup and Cryptographic Verification
A Hungry Tale About File Permissions
Understanding Linux File Permissions Through a Story About Burgers
AIDE Automation Framework From Integrity Checks to Self-Verification
Modular scripting, cryptographic signing, and a tamper-evident ledger for Linux integrity management
When RHEL 9 Meets a Legacy Windows Server - A Crypto Policy Story
Navigating Cipher Compatibility with Custom Crypto Policies on RHEL 9
Secure SSH Shell Applications - Planning Guide
Securing SSH shell applications is straightforward and can be done quickly with a few well-placed configurations. This article walks through how to set up a terminal-based application accessed via SSH and secure it in a way that restricts users to just the application..
Build Your Own AIDE Automation - Guide
Learn to Design and Implement Custom AIDE Automation with Cryptographic Verification from First Principles
AIDE Daily Automation Build - Checklist Your Implementation Roadmap
A Complete Step-by-Step Checklist for Deploying Signed, Verifiable AIDE Integrity Monitoring
AIDE in Motion Automating and Signing System Integrity Checks
Proving System Integrity with GPG Signatures and Cryptographic Verification of AIDE Baselines and Reports
SSH Access to Proxmox Without Exposing Your Lab
How I Use a Hardened Jump Box, Yubikey MFA, and QubesOS Vaulting to Securely Manage My Proxmox Server
AIDE - File Integrity Monitoring for System Security
Implement Silent File Verification with AIDE to Detect Unauthorized Changes Before Attackers Cover Their Tracks
Fine-Tune Access, Visibility, and Security
Take Control of Individual Shares with Precise Permissions, IP Restrictions, and User-Based Access Rules
Securing Samba at the Global Level – Controlling the Server’s DNA
Lock Down Your Linux Samba Server with Encryption, Access Controls, and Logging for a Hardened SMB Setup
The Network in QubesOS – Architecture, Routing, and Real-World Tests
A Deep Dive Into QubesOS Network Isolation and How to Verify Your VPN, TOR, and Inter-VM Firewalling Actually Works
Samba on Linux - File Sharing for Mixed Environments
Enable Controlled File Access Between Windows and Linux with This Step-by-Step Samba Guide
Qubes OS A Journey to a “Reasonably Secure Operating System”
I used to think Linux was secure by default—until I tried Qubes OS. It flipped my assumptions and...
Where do long-dwell attackers hide inside modern networks?
Open question for sysadmins and security folks: which blind spot lets attackers live inside networks for months or years?
Making CUPS Classes Work for You
Simplifying Load Balancing and Failover Printing in Business Environments
QubesOS A Hypervisor as a Desktop
Exploring Compartmentalization, dom0, and the Security Mindset Behind Qubes
Securing Printers with CUPS Why It Matters
Hardening Linux Print Infrastructure with Role-Based Access Control and Policies
Securing CUPS with Role-Based Access Control (RBAC)
Manage User Permissions for Centralized Printing with Fine-Grained Access Contro
Linux Printing with CUPS
CUPS Print Server with Network Printer Access
Customizing Password Policies in Linux Using PAM and User Groups
Learn how to define group-specific password policies using PAM substacks in Linux.
How to Secure Different User Types in Linux: A Guide for IT Teams
Learn how to implement tailored security policies for various Linux user types including system admins, developers, and business users.
Secure SSH Shell Applications
Learn how to safely expose terminal-based apps over SSH without giving users unrestricted shell access. Step-by-step guidance with configuration examples and security best practices.