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 wi
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What is Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering?
Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering is a business podcast hosted by Fexingo, with 154 episodes on record and a Required Pod Score of 80. PitchCentric scores this show on Booking Probability, Listen Score, and live audience signals refreshed every 24 hours.
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Fexingo hosts Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering, a business show with 154 episodes published.
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Episode #160
How to Use Linux Server tmpfs for RAM Backed Storage
Aug 20, 202611 minS4
In this episode of Linux Server Admin, Lucas and Luna dive deep into tmpfs on Linux servers — a filesystem that lives entirely in RAM. They explain what tmpfs actually is under the hood, how it differs from ramfs and swap-backed storage, and walk through a practical setup for a web server's session cache. You'll learn the exact mount options to use, how to set size limits so you don't OOM your box, and when tmpfs is the right tool versus when you should reach for something like Redis or a disk-backed directory. The hosts also cover persistence gotchas, including what happens on reboot, and share real-world monitoring tips using df and free. Whether you're running nginx, PostgreSQL, or just want faster /tmp, this episode gives you the specific commands and trade-offs you need to decide if RAM-backed storage fits your workload. #LinuxServer #tmpfs #RAMStorage #Sysadmin #ServerEngineering #Bash #Technology #FexingoBusiness #BusinessPodcast #WebServer #SessionCache #Filesystem #MountOptions #MemoryManagement #PerformanceTuning #StackExchange #Nginx #DevOps Keep every episode free: buymeacoffee.com/fexingo
How to Use Linux Server cgroups v2 for Resource Control
Aug 19, 202612 minS4
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into the practical side of cgroups v2 on Linux servers. They start with a real-world scenario: a runaway process eating CPU and memory, and show how cgroups v2 can tame it. Topics include the unified hierarchy, the difference between cgroups v1 and v2, and how to create and manage cgroups with systemd and the cgroupfs interface. They also cover how to read key files like cpu.max and memory.max, and how to monitor usage with tools like systemd-cgtop and cgroup events. With a mix of theory and hands-on examples, this episode helps you understand why cgroups v2 matters for modern server workloads and how to use it to prevent resource hogging. Perfect for sysadmins who want to move beyond the basics of resource management. #CgroupsV2 #LinuxServer #ResourceControl #Sysadmin #Systemd #ServerEngineering #Technology #FexingoBusiness #BusinessPodcast #LinuxAdmin #ServerPerformance #ProcessIsolation #MemoryLimits #CPULimits #UnifiedHierarchy #SystemdCgtop #CgroupManagement #LinuxTips Keep every episode free: buymeacoffee.com/fexingo
How to Use Linux Server BPF Tools for Network Diagnostics
Aug 18, 20269 minS4
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into the practical side of BPF (Berkeley Packet Filter) tools for network diagnostics on Linux servers. They walk through real-world scenarios where tcpdump and bpftrace are your best friends — from tracing slow DNS queries to spotting packet drops before they become outages. You'll learn how to use bpftrace one-liners to count TCP retransmissions, trace connect() calls, and even measure latency across your stack. The hosts also discuss when to reach for classic tools versus BPF-powered ones, and how to avoid the performance pitfalls of strace and tcpdump in high-traffic environments. By the end, you'll have a mental toolkit for isolating network issues faster, and a few commands you can actually run today. Whether you're a sysadmin, SRE, or just love diving into /proc, this episode gives you concrete, actionable diagnostics without the hype. #BPFTools #LinuxNetworking #NetworkDiagnostics #Sysadmin #ServerEngineering #bpftrace #LinuxServer #TechPodcast #FexingoBusiness #BusinessPodcast #Linux #OpenSource #Kernel #PerformanceMonitoring #DevOps #Infrastructure #NetworkTroubleshooting #CommandLine Keep every episode free: buymeacoffee.com/fexingo
Lucas and Luna dive into Podman, the daemonless container engine that's gaining ground as a Docker alternative. They explain how Podman's rootless architecture improves security by design, walk through the practical differences from Docker—like the pod concept and systemd integration—and share real commands for running containers without a central daemon. If you're a sysadmin curious about why some teams are swapping Docker for Podman, this episode gives you the concrete reasons and gotchas. Expect specifics: how to set up rootless containers, manage pods with `podman play kube`, and migrate from Docker Compose. Whether you're already using Podman or just evaluating options, you'll leave with a clear picture of where it fits in modern server workflows. #Podman #Containers #LinuxServer #DockerAlternative #RootlessContainers #Sysadmin #ServerEngineering #Technology #FexingoBusiness #BusinessPodcast #ContainerSecurity #Systemd #PodmanCompose #OCI #LinuxContainers #DevOps #ServerAdmin #OpenSource Keep every episode free: buymeacoffee.com/fexingo
Mastering Linux Server Boot Diagnostics with Systemd
Aug 16, 20268 minS4
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into the world of systemd boot diagnostics. With systemd now the default init system on almost every major Linux distribution, understanding how to debug slow or failed boots is a vital skill for any sysadmin. Lucas shares a real-world story of a server that took over 10 minutes to boot, and how a combination of systemd-analyze critical-chain, bootchart, and journalctl -b -1 helped pinpoint the culprit: a network-mounted filesystem stuck in a retry loop. They also discuss how to use systemd's boot logging features to trace both successful and failed boots, and how to interpret the parseable output of systemd-analyze for scripting. The episode covers practical commands, common pitfalls, and a proactive approach to boot performance. If you've ever stared at a hanging server and wished you knew what was happening during boot, this episode delivers the tools and techniques you need to take control. #LinuxServerAdmin #SystemdBoot #BootDiagnostics #SystemdAnalyze #Bootchart #Journalctl #Sysadmin #Technology #FexingoBusiness #BusinessPodcast #LinuxTroubleshooting #ServerBoot #SystemdTimers #BootPerformance #NetworkMount #RetryLoop #SystemdLogging #LinuxInit Keep every episode free: buymeacoffee.com/fexingo
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