Linux Guides: Systems, Hardware, Data, and History

Find a starting point, solve an operating problem, or understand the history behind a Linux system. Each guide below explains what to check, how to interpret the evidence, or where a technology fits.

Start and learn

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Debian GNU/Linux: Choose, Install, and Maintain a Stable System

Choose a Debian release, prepare hardware and backups, and plan installation, routine updates and release upgrades.

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Linux PCs

Evaluate Linux hardware, certification, firmware, peripherals and support before buying or installing.

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Understanding the Linux Kernel

Understand how the kernel manages processes, memory, devices, files, networks and isolation.

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Red Hat Linux and the Fedora Project

Trace Fedora's origins and understand its community, upstream role and different operating-system editions.

Run and maintain systems

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Linux Kernel Updates: Versions, Drivers, and Recovery

Identify running and installed kernels, prepare driver and boot checks, and recover from update regressions.

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Red Hat on HP and HPE Servers: Certification and Support

Verify the exact server, RHEL release, firmware and support contract before deployment or an operating-system upgrade.

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Linux Enterprise Desktops: Plan a Pilot Before a Rollout

Plan a pilot around applications, documents, hardware, identity, support and clear acceptance tests.

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Linux Web Applications: Deploy a Small, Maintainable Service

Follow a small Debian web-service example through process management, a reverse proxy, HTTPS and recovery planning.

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Running a CMS on Linux: Choose and Maintain the Architecture

Compare database-backed, flat-file and static publishing; test editorial work and complete restores.

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Linux Standard Base and Application Compatibility Today

Understand ABI boundaries and investigate Linux loader, library, architecture and packaging mismatches.

Protect systems and data

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Linux Data Recovery

Prioritize preservation, imaging and recovery from copies across damaged filesystems, disks and storage layers.

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Secure Linux and SELinux

Understand SELinux enforcement, labels, policy and its role alongside other Linux security measures.

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Linux Security Certification

Read Common Criteria certificates, assurance levels and the configuration limits of a security evaluation.

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Open-Source Licenses: A Practical Compliance Workflow

Build a component inventory, examine license obligations and assemble evidence for a software release.

Databases and large-scale computing

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IBM Db2 on Linux: Availability, Scaling, and Recovery

Compare Db2 HADR, pureScale and database partitioning, then define recovery targets and test the complete application.

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Red Hat Container Storage: Persistence and Migration Planning

Understand persistence, access modes, failure domains, backups and migration planning for older container storage.

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High-Performance Linux: Find the Bottleneck Before Tuning

Measure CPU, memory, NUMA and storage evidence before changing a workload's configuration.

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How a Linux HPC Cluster Runs a Job

Follow a Slurm job through compute nodes, parallel tasks, result checks and a worked scaling comparison.

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Linux Supercomputers: Architecture and Performance Explained

Read supercomputer specifications and benchmarks, distinguish peak from measured performance, and compare time and energy for a real workload.

Devices and communication

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Linux Email Clients and Mulberry

Compare Linux email workflows, IMAP, offline search, authentication and desktop integration through Mulberry's legacy.

Linux Phones

Explore Android and alternative mobile Linux systems, application needs, hardware support and practical tradeoffs.

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Archos Pocket Media Assistant: Linux Handhelds and Media Preservation

Understand the PMA400's place in Linux handheld history and preserve accessible files through copying, verification and format documentation.

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IP Video Phones and Broadband Video Calling

Understand how embedded Linux, codecs and IP signaling helped video calling move from appliances into everyday software.

History and legacy systems

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Linux Guides: Systems, Hardware, Data, and History - Yenra