Episodes

  • How Linux ZRAM Is Transforming Memory Management

    How Linux ZRAM Is Transforming Memory Management
    Jun 19 2026
    Episode 60 of The Linux Podcast. Lucas and Luna explore how ZRAM, a Linux kernel module that creates a compressed block device in RAM, is changing memory management on everything from Android phones to enterprise servers. They break down the trade-offs between ZRAM and traditional swap, explain why it delivers up to 50 percent more effective memory under load, and discuss how modern kernels handle compression algorithms like LZ4 and ZSTD. With real-world examples—like Google's Pixel phones using ZRAM by default and servers at Dropbox tuning swap on ZRAM for better density—this episode gives you a concrete understanding of a silent efficiency hack in the Linux kernel. No fluff, just the mechanics. #Linux #ZRAM #MemoryManagement #Swap #Kernel #Compression #LZ4 #ZSTD #Android #ServerOptimization #Dropbox #Google #Technology #OpenSource #FexingoBusiness #BusinessPodcast #LinuxPodcast #Efficiency Keep every episode free: buymeacoffee.com/fexingo
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    12 mins
  • How Linux PipeWire Is Unifying Audio and Video on Linux

    How Linux PipeWire Is Unifying Audio and Video on Linux
    Jun 18 2026
    In episode 59 of The Linux Podcast with Fexingo, Lucas and Luna dive into PipeWire, the open-source multimedia framework that's quietly replacing PulseAudio and JACK across Linux desktops. They unpack how PipeWire handles low-latency professional audio, screen sharing under Wayland, and sandboxed audio for Flatpak apps — all with a single daemon. With real-world benchmarks from Fedora and Arch Linux, the hosts explain why PipeWire's graph-based architecture and security model are making it the default choice for distros like Ubuntu and Debian as of mid-2026. They also touch on the project's origins at Red Hat and its adoption by the Steam Deck. A concrete, focused look at one of the most important infrastructure shifts in the Linux audio-video stack. #Linux #PipeWire #Audio #Video #OpenSource #Wayland #Flatpak #PulseAudio #JACK #Fedora #ArchLinux #Ubuntu #Debian #RedHat #SteamDeck #Multimedia #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    8 mins
  • How Linux Kernel Live Dump Is Changing Debugging

    How Linux Kernel Live Dump Is Changing Debugging
    Jun 18 2026
    Lucas and Luna explore Linux kernel live dump — a technique that captures a running kernel's memory state without rebooting. They explain how it differs from traditional crash dumps, why it's a game-changer for production debugging, and walk through a real-world case where a major social media company used live dump to diagnose a memory corruption bug in under an hour. The episode also covers the tooling landscape — from LKCD to the modern drgn and crash utilities — and why this approach is becoming standard in high-availability environments. If you've ever faced a kernel panic or an unexplained memory leak in production, this conversation will give you a concrete technique to understand. #Linux #KernelLiveDump #ProductionDebugging #LinuxKernel #drgn #CrashUtility #MemoryCorruption #HighAvailability #SysAdmin #DevOps #OpenSource #LinuxDebugging #KernelPanic #MemoryLeak #Technology #FexingoBusiness #BusinessPodcast #LinuxPodcast Keep every episode free: buymeacoffee.com/fexingo
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    10 mins
  • How Linux Wayland Is Finally Replacing X11 on the Desktop

    How Linux Wayland Is Finally Replacing X11 on the Desktop
    Jun 17 2026
    In this episode of The Linux Podcast with Fexingo, Lucas and Luna dive into the long-awaited transition from the X11 display server to Wayland on Linux desktops. They explore why this shift has taken over a decade, starting with the key architectural differences — like Wayland's simpler, more secure model that eliminates many of X11's legacy problems. The conversation focuses on a concrete milestone: as of Ubuntu 24.10 and Fedora 40, both major distros ship Wayland as the default session. Lucas explains how NVIDIA's proprietary driver finally gained proper Wayland support in late 2024, resolving a major blocker for gamers and professionals. Luna challenges whether the transition is truly complete, pointing out that XWayland, a compatibility layer, still runs many legacy apps. They also discuss remaining pain points like screen recording and some accessibility tools. The episode covers real-world adoption numbers — about 70% of Linux desktop users are now on Wayland — and offers a practical take on whether it's time for listeners to switch. Tune in for a clear, grounded look at what the Wayland shift means for everyday Linux users. #Linux #Wayland #X11 #DisplayServer #Ubuntu #Fedora #NVIDIA #OpenSource #DesktopLinux #Technology #FexingoBusiness #BusinessPodcast #LinuxDesktop #XWayland #Gaming #PipeWire #GNOME #KDE Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How Linux Flatpak Is Solving the Dependency Deadlock

    How Linux Flatpak Is Solving the Dependency Deadlock
    Jun 17 2026
    Episode 56 of The Linux Podcast with Fexingo dives into Flatpak's approach to software distribution on Linux. Lucas and Luna discuss how Flatpak breaks the decades-old dependency cycle by bundling runtimes and sandboxing applications. They compare it to Snap and AppImage, examine real-world use cases like Steam and Blender, and look at the performance tradeoffs including larger download sizes and startup memory overhead. The episode also touches on security boundaries enforced by Bubblewrap and how Fedora Kinoite and Steam Deck popularized Flatpak. With 3 million monthly active users across Flathub, Flatpak is reshaping how Linux users install and update software without breaking their system package manager. #Linux #Flatpak #Flathub #Snap #AppImage #Bubblewrap #Sandboxing #SoftwareDistribution #OpenSource #FedoraKinoite #SteamDeck #LinuxDesktop #RunTime #Containers #Technology #FexingoBusiness #BusinessPodcast #LinuxPodcast Keep every episode free: buymeacoffee.com/fexingo
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    13 mins
  • How Linux BPF Is Transforming Security Monitoring

    How Linux BPF Is Transforming Security Monitoring
    Jun 16 2026
    On episode 55 of The Linux Podcast, Lucas and Luna explore how BPF (Berkeley Packet Filter) has evolved from a packet filtering tool into a powerful security monitoring framework. They dive into real-world use cases like detecting container breakouts, auditing system calls, and tracing network anomalies without modifying kernel code. The discussion highlights tools like Falco, Tracee, and Cilium, and explains why BPF offers lower overhead compared to traditional security agents. Lucas shares a specific example of how a major cloud provider, Cloudflare, uses BPF to protect its edge infrastructure. Luna raises questions about complexity and the learning curve for DevOps teams. The hosts also make a brief, sincere mention of listener support for keeping the show ad-free. #Linux #BPF #Security #eBPF #Falco #Tracee #Cilium #Cloudflare #ContainerSecurity #SystemCallAuditing #NetworkSecurity #Technology #Podcast #FexingoBusiness #BusinessPodcast #OpenSource #Kernel #DevOps Keep every episode free: buymeacoffee.com/fexingo
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    9 mins
  • How Linux Access Control Lists Secure Multi-Tenant Environments

    How Linux Access Control Lists Secure Multi-Tenant Environments
    Jun 15 2026
    Episode 53 of The Linux Podcast with Fexingo dives into Linux Access Control Lists (ACLs) — the overlooked permission system that goes beyond traditional Unix chmod for multi-tenant servers. Lucas explains how ACLs let you grant specific users read, write, or execute permissions on a per-file basis, using examples like a shared log directory where a DevOps team needs write access while auditors get read-only. Luna brings up production horror stories where ACLs saved them from building custom workarounds. The episode covers the getfacl and setfacl commands, ACL mask semantics, and how NFSv4 ACLs differ from POSIX. A concrete look at a tool every sysadmin should master. #Linux #AccessControlLists #Sysadmin #MultiTenant #Security #OpenSource #Technology #POSIXACL #NFSv4ACL #getfacl #setfacl #ServerSecurity #LinuxPermissions #DevOps #Infrastructure #FexingoBusiness #BusinessPodcast #TheLinuxPodcast Keep every episode free: buymeacoffee.com/fexingo
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    9 mins