Shows / Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
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…
Episodes
Linux Server Admin with Fexingo: Sysadmin, Bash, and Server EngineeringLinux Server Failing Gracefully with Systemd OnFailure
Episode 109 of Linux Server Admin with Fexingo dives into a powerful but often overlooked systemd feature: OnFailure=, which automatically triggers a rescue…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Disk Quota Management with Quota Tools
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux server disk quota management using the classic quota tools. They walk…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Systemd Journal for Centralized Logging
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into the systemd journal (journalctl) as a centralized logging solution for Linux…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server LVM Snapshots for Backups
Lucas and Luna dive into Linux Logical Volume Manager (LVM) snapshots—a powerful tool for creating point-in-time copies of filesystems. They explain how…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server BPF Compiler Collection for Performance
In this episode, Lucas and Luna dive into the BPF Compiler Collection (BCC) for Linux server performance analysis. They explore how BCC provides dynamic…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Namespace Isolation with Unshare
Lucas and Luna dive into Linux namespace isolation using the 'unshare' command. They explain how unshare allows you to create isolated environments for…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Using Linux Server Etckeeper for Automated Config Version Control
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into etckeeper, a lightweight tool that automatically version-controls your /etc…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Network Performance Tuning with sysctl
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into network performance tuning on Linux servers using the sysctl utility. They focus…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Set Up Linux Server Network Bonding with Teamd
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into network bonding for Linux servers using the modern teamd daemon. They explain how…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Performance Tuning with Tuned Profiles
Episode 100 of Linux Server Admin with Fexingo: Lucas and Luna dive into performance tuning with Tuned, the Linux systemd service that applies predefined…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Control Groups for Resource Isolation
In episode 99 of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux control groups (cgroups) version 2, a powerful kernel feature for limiting…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Virtual File System Internals with FUSE
In episode 98 of Linux Server Admin with Fexingo, Lucas and Luna dive into the world of FUSE — Filesystem in Userspace. They explain how FUSE lets you build…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Disk Encryption with LUKS and Clevis
In this episode, Lucas and Luna dive into full-disk encryption for Linux servers using LUKS (Linux Unified Key Setup) and Clevis for automatic unlocking. Lucas…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server SSH Certificate Authentication Setup
Episode 96 of Linux Server Admin with Fexingo dives into SSH certificate authentication as a modern alternative to traditional key-based access. Lucas and Luna…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Network Time Protocol with Chrony
Episode 95 gets into the weeds of Linux server time synchronization using Chrony instead of the older NTP daemon. Lucas and Luna walk through why accurate time…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Systemd Timer Units for Scheduling
Episode 94 of Linux Server Admin with Fexingo dives into systemd timer units as a modern replacement for cron. Lucas and Luna walk through creating a daily…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Kernel Same-page Merging for Memory Optimization
Kernel Same-page Merging (KSM) is a Linux kernel feature that deduplicates identical memory pages across processes, dramatically reducing RAM usage in…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Auditing with Auditd for Security Compliance
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux server auditing using auditd. They explain how to set up audit rules to…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Iptables for Advanced Packet Filtering
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into iptables — the classic packet filtering framework still essential for sysadmins…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server IPv6 Configuration with systemd-networkd
In Episode 90 of Linux Server Admin with Fexingo, Lucas and Luna dive into IPv6 configuration for Linux servers using systemd-networkd. They explain why IPv6…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Load Balancing with HAProxy
In episode 89 of Linux Server Admin with Fexingo, Lucas and Luna dive into load balancing Linux servers using HAProxy. They walk through a concrete setup: a…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Strace for Troubleshooting
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into strace — the powerful Linux system call tracer. They explain what strace does…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server TCP Wrappers for Host-Based Access Control
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into TCP Wrappers — a classic host-based access control system for Linux servers. They…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Disk Quotas
Episode 86 of Linux Server Admin with Fexingo dives into disk quotas on Linux servers. Lucas and Luna walk through setting up user and group quotas with the…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Systemd Journal for Centralized Logging
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into systemd-journald as a centralized logging solution. They explain how to configure…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Logrotate for Log Management
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into logrotate, the indispensable tool for managing server log files. They explain why…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Remote Access with Tailscale
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into Tailscale as a modern solution for secure remote access to Linux servers without…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Threat Detection with Falco
Learn how to use Falco, the open-source runtime security tool, to detect threats on Linux servers in real time. Lucas and Luna walk through installing Falco…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Logwatch for Daily Reporting
In episode 81 of Linux Server Admin with Fexingo, Lucas and Luna explore Logwatch, the lightweight log analysis tool that sends daily server reports via email…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Manage Linux Server Secrets with HashiCorp Vault
In this episode, Lucas and Luna dive into HashiCorp Vault for Linux server secret management. They cover initializing and unsealing Vault, setting up a secret…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Network Bonding for Redundancy and Performance
Episode 79 of Linux Server Admin with Fexingo digs into network bonding — combining multiple physical NICs into a single logical interface for failover and…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server VLAN Tagging with systemd-networkd
Episode 78 of Linux Server Admin with Fexingo dives into VLAN tagging on Linux servers using systemd-networkd. Lucas and Luna walk through a real-world…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Namespaces with Podman for Rootless Containers
In this episode of Linux Server Admin, Lucas and Luna dive into running containers without root privileges using Podman and Linux namespaces. You'll learn how…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Disk Encryption with LUKS
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into full-disk encryption for Linux servers using LUKS (Linux Unified Key Setup). They…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Firewall with NFTables
In this episode of Linux Server Admin with Fexingo, Lucas and Luna walk through nftables, the modern replacement for iptables on Linux servers. They cover the…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Secure Linux Server SSH with Key-Based Authentication and Hardening
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into SSH key-based authentication and server hardening. They walk through generating…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server File Integrity Monitoring with AIDE
In episode 73 of Linux Server Admin with Fexingo, Lucas and Luna dive deep into AIDE (Advanced Intrusion Detection Environment) for Linux server file integrity…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Rescue Mode for Recovery
In this episode, Lucas and Luna walk through a real-world scenario where a Linux server fails to boot after a botched kernel update. Lucas explains how to…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Performance Tuning with cgroups v2
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into the world of Linux control groups version 2 (cgroups v2). They explain why cgroups…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Server Audit Logs for Incident Response
In episode 70 of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux server audit logs for incident response. They walk through a real-world…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Automate Linux Server Configuration with Ansible
In this episode, Lucas and Luna dive into automating Linux server configuration using Ansible. They walk through a real-world scenario: setting up a web server…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Build a Custom Linux Server Initramfs
In this episode of Linux Server Admin, Lucas and Luna dive into the process of building a custom initramfs for Linux servers. They explain why you might want…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Time Synchronization with Chrony
In this episode of Linux Server Admin, Lucas and Luna dive into the practical side of keeping server clocks accurate using Chrony, the modern NTP…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Auditd for Server Security Monitoring
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux auditd, the powerful audit framework built into the kernel. They explain how…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Automated Patching with Unattended Upgrades
Episode 65 of Linux Server Admin with Fexingo dives into automated security patching on Linux servers using unattended-upgrades. Lucas and Luna walk through…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux systemd Journal for Centralized Logging
Episode 64 of Linux Server Admin with Fexingo. Lucas and Luna dive into systemd-journald for centralized log management on Linux servers. Lucas explains why…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Monitor Linux Server Hardware Health with Smartctl and IPMI
In episode 63 of Linux Server Admin with Fexingo, Lucas and Luna dive into proactive hardware monitoring for Linux servers using smartctl for disk health and…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Speed Up Linux Server Package Updates with Apt-Cacher NG
Episode 62 of Linux Server Admin with Fexingo dives into the practical pain of slow package updates when managing fleets of Ubuntu or Debian servers. Lucas and…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server Disk I/O Tuning with IO Schedulers
In this episode, Lucas and Luna dive into Linux server disk I/O performance tuning by focusing on the three main I/O schedulers available in the modern Linux…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Diagnose Linux Server Boot Failures with Initramfs
Have you ever rebooted a Linux server only to have it drop you into a busybox shell instead of booting normally? In this episode of Linux Server Admin, Lucas…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Tune Linux Server TCP for High Latency Links
When your server talks to clients halfway around the world, default TCP settings can choke performance. In this episode, Lucas and Luna explain how to tune…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Network Namespaces for Multi-Tenant Isolation
In this episode, Lucas and Luna dive deep into Linux network namespaces as a practical tool for multi-tenant server isolation. They walk through a real-world…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Container Runtimes for Server Deployment
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into the practical side of container runtimes—specifically, how to choose between…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux LVM Snapshot Backups for Rapid Recovery
In this episode of Linux Server Admin with Fexingo, Lucas and Luna dive into a powerful but often overlooked feature of Logical Volume Manager (LVM)…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Diagnose Linux Server DNS Resolution Issues
Episode 55 of Linux Server Admin tackles a common but infuriating problem: DNS resolution failures that can cripple server connectivity. Lucas and Luna walk…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Manage Linux Server Storage Pools with LVM
Episode 54 of Linux Server Admin with Fexingo dives into Logical Volume Manager (LVM) for flexible server storage. Lucas and Luna walk through a real-world…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Namespaces for User Isolation
In this episode of Linux Server Admin, Lucas and Luna dive into Linux namespaces for user isolation — a key technique for securing multi-tenant servers and…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
Linux Server SSH Hardening with Security Keys
In this episode, Lucas and Luna dive into the practical steps for hardening SSH on Linux servers using FIDO2/U2F security keys. They explain why password and…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux BPF for Real-Time Performance Tracing
Episode 51 of Linux Server Admin with Fexingo dives into BPF (Berkeley Packet Filter) as a practical tool for real-time performance tracing on Linux servers…
- Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering
How to Use Linux Namespaces for Process Isolation
In episode 50 of Linux Server Admin with Fexingo, Lucas and Luna dive into Linux namespaces for process isolation, focusing on the PID and network namespaces…