『Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering』のカバーアート

Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering

Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering

著者： Fexingo
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Lucas and Luna sit down at a pair of thin laptops, terminal windows flickering with abstract patterns, to talk Linux server administration as it's actually practiced—bash scripting, systemd quirks, Nginx tuning, SSH hardening, and the daily grind of keeping production services online. Each episode picks a single sysadmin problem: how to diagnose a slow database query without panic, why that cron job keeps failing at 3 AM, or the right way to automate backups with rsync and rclone. Lucas brings the journalistic rigor—he'll cite real-world incidents like the 2021 AWS Kinesis outage that broke monitoring for half the internet, or the time a misplaced chmod command took down a major e-commerce site for an hour. Luna pushes back with hands-on experience: she's the one who asks whether you really need Docker for a three-service stack, or why your fail2ban config is banning your own IP. Together they cut through vendor hype—no Kubernetes if you have five servers, no Ansible if a shell loop will do—and focus on the tools and habits that keep systems boringly stable. The listener is someone who manages servers—maybe a solo IT generalist at a mid-size company, a DevOps engineer tired of conference talk, or a hobbyist running a home lab who wants professional-grade discipline. No whiteboarding abstract architectures; just concrete decisions, error messages, and the trade-offs between uptime and complexity. Can you afford to ignore SELinux? When is it smarter to reboot than to debug a memory leak? And how do you explain a 99.9% uptime SLA to a manager who thinks 'the cloud' fixes everything? #LinuxServerAdmin #Sysadmin #Bash #ServerEngineering #SSH #Nginx #Systemd #DevOps #Infrastructure #Automation #Backup #Security #Technology #FexingoBusiness #BusinessPodcast #DailyPodcast #ServerRoom #Terminal Keep every episode free: buymeacoffee.com/fexingo© 2026 Fexingo. All rights reserved. 経済学
エピソード
  • How to Use Linux Control Groups for Resource Limits

    How to Use Linux Control Groups for Resource Limits
    2026/06/07
    Episode 37 of Linux Server Admin with Fexingo dives into control groups (cgroups) — the kernel feature that lets you limit CPU, memory, and I/O per process. Lucas and Luna walk through a real scenario: a runaway PHP-FPM pool consuming all server RAM on a shared hosting box. They explain how to set memory and CPU limits with cgroups v2, how to monitor usage with systemd-cgtop, and why this beats trusting nice values alone. Practical commands, real output, and a warning about the cgroup filesystem hierarchy. Perfect for sysadmins who want to stop one noisy neighbor from killing the whole server. #Linux #ControlGroups #Cgroups #ResourceLimits #Sysadmin #ServerManagement #PHPFPM #MemoryLimit #CPUQuota #Systemd #CgroupsV2 #LinuxKernel #ServerPerformance #NoisyNeighbor #Technology #FexingoBusiness #BusinessPodcast #LinuxServerAdmin Keep every episode free: buymeacoffee.com/fexingo
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    12 分
  • How to Benchmark Linux Server Disk I/O with FIO

    How to Benchmark Linux Server Disk I/O with FIO
    2026/06/07
    Episode 36 of Linux Server Admin with Fexingo dives into disk I/O benchmarking with FIO. Lucas and Luna walk through a real-world scenario: a database server showing intermittent slow queries, traced to unexpected I/O latency. They explain how to install FIO, construct a basic random-read/write test, interpret the output (IOPS, latency percentiles, bandwidth), and compare against expected performance for SSDs and HDDs. The episode covers why default test parameters can mislead, how to match workloads (e.g., 4K random vs. 64K sequential), and a simple three-run methodology for reliable baselines. Specific numbers include typical NVMe IOPS (500k+ random read), SATA SSD thresholds (80k IOPS), and how to spot controller saturation. No fluff—just practical steps to benchmark before tuning or blaming hardware. #Linux #Sysadmin #ServerEngineering #DiskIO #FIO #Benchmarking #StoragePerformance #IOPS #Latency #DatabasePerformance #NVMe #SSD #ServerTuning #Technology #FexingoBusiness #BusinessPodcast #LinuxServerAdmin #PerformanceTuning Keep every episode free: buymeacoffee.com/fexingo
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    10 分
  • Why Your Linux Server Needs a Dedicated Patch Automation Schedule

    Why Your Linux Server Needs a Dedicated Patch Automation Schedule
    2026/06/06
    Episode 35 tackles the hidden risk of inconsistent patching on Linux servers. Lucas and Luna walk through a real-world case: a mid-sized e-commerce company that suffered a 12-hour outage after applying kernel patches manually on a Friday afternoon. They break down why most sysadmins still rely on ad-hoc updates, how unattended-upgrades can backfire, and what a structured patch window looks like — including pre-patch snapshots, staged rollouts, and post-patch smoke tests. You'll learn the specific dangers of skipping patch automation: silent dependency drift, security gaps, and configuration drift across fleets. The episode also covers tools like cron-apt, yum-cron, and Ansible playbooks for patch orchestration, and why you should always test patches on a canary node first. Lucas and Luna don't just tell you to automate — they show you the cost of not doing it, from a real outage postmortem. By the end, you'll have a concrete checklist for building your own patch schedule, tailored to production workloads. #LinuxServerAdmin #Sysadmin #PatchManagement #LinuxSecurity #ServerAutomation #BashScripting #Ansible #KernelUpdates #UnattendedUpgrades #DevOps #ProductionOutage #CanaryDeployments #Snapshots #CronJObs #RiskManagement #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    11 分
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