『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
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  • How to Use Linux Namespaces for Network Isolation

    How to Use Linux Namespaces for Network Isolation
    2026/06/08
    Episode 39 of Linux Server Admin dives into Linux network namespaces for isolating server processes without full container runtimes. Lucas and Luna break down a real scenario: running a legacy monitoring agent that can't be containerized but must be network-separated from production traffic. They walk through creating a namespace, assigning a virtual Ethernet pair, and routing traffic through a dedicated bridge. Specific commands include 'ip netns add', 'ip link add veth', and iptables rules for NAT. The episode also covers debugging with 'nsenter' and 'ip netns exec', plus pitfalls like systemd integration and DNS resolution inside namespaces. By the end, listeners can isolate any process's network stack with five commands. The conversation includes a brief donation segment highlighting Fexingo's ad-free model at buy me a coffee dot com slash fexingo. #Linux #Sysadmin #ServerEngineering #NetworkNamespaces #NetworkIsolation #Bash #TechPodcast #DevOps #Containerization #iptables #VethPair #ipCommand #nsenter #Systemd #ServerSecurity #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    9 分
  • How to Use Linux Auditd for Server Security Monitoring

    How to Use Linux Auditd for Server Security Monitoring
    2026/06/08
    Lucas and Luna dive into Linux auditd, the powerful auditing subsystem that tracks security-relevant events on your servers. They walk through a real-world scenario: detecting unauthorized file access attempts using auditctl rules, interpreting ausearch output, and generating daily reports with aureport. The episode covers how to configure auditd without overwhelming your logs, common pitfalls like rule ordering and log rotation, and a practical example of monitoring /etc/shadow for suspicious reads. By the end, you'll know how to set up a simple but effective audit trail that helps catch intruders and meet compliance requirements. No fluff, just actionable sysadmin techniques. #Linux #Sysadmin #Auditd #Security #ServerMonitoring #Compliance #Forensics #Auditctl #Ausearch #Aureport #FileIntegrity #Logging #Technology #FexingoTech #FexingoBusiness #BusinessPodcast #ITSecurity #LinuxSecurity Keep every episode free: buymeacoffee.com/fexingo
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    11 分
  • 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
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