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

Linux Server Admin with Fexingo: Sysadmin, Bash, and Server Engineering podcast cover
Fexingo Technology

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 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

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Episodes

140 episodes

Chrony for Accurate Server Time Synchronization

Jul 30, 2026 · 7:47
0:000:00

Linux Server LVM Thin Provisioning for Efficient Storage

Jul 30, 2026 · 6:59
0:000:00

Linux Server User Namespaces for Container Security

Jul 29, 2026 · 9:29
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Monitoring Linux Server Performance with Prometheus

Jul 29, 2026 · 7:43
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Debugging Slow Servers with Strace and Ltrace

Jul 28, 2026 · 10:01
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How to Set Up Disk Encryption with LUKS on Linux Servers

Jul 28, 2026 · 6:43
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How to Confine Applications with SELinux on Linux Servers

Jul 27, 2026 · 7:33
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Linux Server Swap Tuning for Modern Memory Management

Jul 27, 2026 · 7:09
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Hardening Systemd Services for Better Server Security

Jul 26, 2026 · 5:45
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How to Set Resource Limits with Control Groups v2

Jul 26, 2026 · 7:35
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How to Profile a Slow Server with Perf on Linux

Jul 25, 2026 · 4:45
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Linux Server Log Aggregation with systemd-journald

Jul 24, 2026 · 8:24
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Linux Server Tuned Daemon for Dynamic Performance Optimization

Jul 23, 2026 · 7:40
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Linux Server Kernel Same-page Merging for Memory Overcommit

Jul 23, 2026 · 10:25
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Linux Server Network Namespace Isolation for Container Testing

Jul 22, 2026 · 11:00
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Linux Server SSH Certificate Authority for Key Management

Jul 22, 2026 · 12:00
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Linux Server Network Bonding for Redundancy and Throughput

Jul 21, 2026 · 9:02
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How to Use Linux Server TCP BBR for Congestion Control

Jul 21, 2026 · 7:52
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Linux Server Kernel Module Management with Modprobe

Jul 20, 2026 · 7:25
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Linux Server Auto Scaling with Systemd Timers and Triggers

Jul 19, 2026 · 9:51
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Linux Server Emergency Access with Break Glass Procedures

Jul 19, 2026 · 7:42
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Linux Server Config Drift Detection with AIDE

Jul 18, 2026 · 10:18
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Linux Server Disk Performance with I/O Scheduling Tuning

Jul 18, 2026 · 10:30
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Linux Server Automated Patching with Unattended-Upgrades

Jul 17, 2026 · 11:19
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Linux Server Network Troubleshooting with Tracepath and MTR

Jul 17, 2026 · 12:10
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Linux Server RAID Config Best Practices

Jul 16, 2026 · 8:10
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Linux Server NFS4 Kerberos Security Setup

Jul 16, 2026 · 10:24
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Linux Server Storage Tiering with LVM Cache

Jul 15, 2026 · 9:29
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Linux Server Intel QAT for Hardware Crypto Acceleration

Jul 15, 2026 · 10:02
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Linux Server Samba Active Directory Domain Controller Setup

Jul 14, 2026 · 7:35
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Linux Server Strace for Debugging System Call Failures

Jul 14, 2026 · 8:55
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Linux Server Failing Gracefully with Systemd OnFailure

Jul 13, 2026 · 8:59
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Linux Server Disk Quota Management with Quota Tools

Jul 13, 2026 · 9:02
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How to Use Linux Server Systemd Journal for Centralized Logging

Jul 12, 2026 · 7:35
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How to Use Linux Server LVM Snapshots for Backups

Jul 12, 2026 · 7:23
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How to Use Linux Server BPF Compiler Collection for Performance

Jul 11, 2026 · 10:07
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Linux Server Namespace Isolation with Unshare

Jul 11, 2026 · 10:44
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Using Linux Server Etckeeper for Automated Config Version Control

Jul 10, 2026 · 15:10
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Linux Server Network Performance Tuning with sysctl

Jul 10, 2026 · 8:19
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How to Set Up Linux Server Network Bonding with Teamd

Jul 9, 2026 · 12:01
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Linux Server Performance Tuning with Tuned Profiles

Jul 9, 2026 · 8:30
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How to Use Linux Server Control Groups for Resource Isolation

Jul 8, 2026 · 8:19
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Linux Server Virtual File System Internals with FUSE

Jul 8, 2026 · 11:51
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Linux Server Disk Encryption with LUKS and Clevis

Jul 7, 2026 · 10:26
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Linux Server SSH Certificate Authentication Setup

Jul 7, 2026 · 13:14
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How to Use Linux Server Network Time Protocol with Chrony

Jul 6, 2026 · 11:23
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How to Use Linux Server Systemd Timer Units for Scheduling

Jul 6, 2026 · 6:49
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How to Use Linux Server Kernel Same-page Merging for Memory Optimization

Jul 5, 2026 · 8:55
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Linux Server Auditing with Auditd for Security Compliance

Jul 5, 2026 · 11:45
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How to Use Linux Server Iptables for Advanced Packet Filtering

Jul 4, 2026 · 10:54
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Linux Server IPv6 Configuration with systemd-networkd

Jul 4, 2026 · 10:29
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Linux Server Load Balancing with HAProxy

Jul 3, 2026 · 12:57
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How to Use Linux Server Strace for Troubleshooting

Jul 3, 2026 · 8:07
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How to Use Linux Server TCP Wrappers for Host-Based Access Control

Jul 2, 2026 · 11:28
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How to Use Linux Server Disk Quotas

Jul 2, 2026 · 9:25
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How to Use Linux Server Systemd Journal for Centralized Logging

Jul 1, 2026 · 10:38
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How to Use Linux Server Logrotate for Log Management

Jul 1, 2026 · 8:37
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How to Use Linux Server Remote Access with Tailscale

Jun 30, 2026 · 13:36
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How to Use Linux Server Threat Detection with Falco

Jun 30, 2026 · 11:13
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How to Use Linux Server Logwatch for Daily Reporting

Jun 29, 2026 · 10:28
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How to Manage Linux Server Secrets with HashiCorp Vault

Jun 29, 2026 · 12:03
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How to Use Linux Server Network Bonding for Redundancy and Performance

Jun 28, 2026 · 9:39
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Linux Server VLAN Tagging with systemd-networkd

Jun 28, 2026 · 7:31
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How to Use Linux Server Namespaces with Podman for Rootless Containers

Jun 27, 2026 · 9:12
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How to Use Linux Server Disk Encryption with LUKS

Jun 27, 2026 · 12:32
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How to Use Linux Server Firewall with NFTables

Jun 26, 2026 · 14:59
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How to Secure Linux Server SSH with Key-Based Authentication and Hardening

Jun 26, 2026 · 7:05
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How to Use Linux Server File Integrity Monitoring with AIDE

Jun 25, 2026 · 13:43
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How to Use Linux Server Rescue Mode for Recovery

Jun 25, 2026 · 9:56
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Linux Server Performance Tuning with cgroups v2

Jun 24, 2026 · 13:20
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How to Use Linux Server Audit Logs for Incident Response

Jun 24, 2026 · 12:15
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How to Automate Linux Server Configuration with Ansible

Jun 23, 2026 · 7:57
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How to Build a Custom Linux Server Initramfs

Jun 23, 2026 · 16:40
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Linux Server Time Synchronization with Chrony

Jun 22, 2026 · 8:43
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How to Use Linux Auditd for Server Security Monitoring

Jun 22, 2026 · 10:16
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Linux Server Automated Patching with Unattended Upgrades

Jun 21, 2026 · 9:54
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How to Use Linux systemd Journal for Centralized Logging

Jun 21, 2026 · 8:36
0:000:00

How to Monitor Linux Server Hardware Health with Smartctl and IPMI

Jun 20, 2026 · 7:49
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How to Speed Up Linux Server Package Updates with Apt-Cacher NG

Jun 20, 2026 · 5:09
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Linux Server Disk I/O Tuning with IO Schedulers

Jun 19, 2026 · 9:47
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How to Diagnose Linux Server Boot Failures with Initramfs

Jun 19, 2026 · 8:33
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How to Tune Linux Server TCP for High Latency Links

Jun 18, 2026 · 7:14
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How to Use Linux Network Namespaces for Multi-Tenant Isolation

Jun 18, 2026 · 9:56
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How to Use Linux Container Runtimes for Server Deployment

Jun 17, 2026 · 12:08
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How to Use Linux LVM Snapshot Backups for Rapid Recovery

Jun 17, 2026 · 7:03
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How to Diagnose Linux Server DNS Resolution Issues

Jun 16, 2026 · 8:06
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How to Manage Linux Server Storage Pools with LVM

Jun 16, 2026 · 9:25
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How to Use Linux Namespaces for User Isolation

Jun 15, 2026 · 11:46
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Linux Server SSH Hardening with Security Keys

Jun 15, 2026 · 10:14
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How to Use Linux BPF for Real-Time Performance Tracing

Jun 14, 2026 · 13:04
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How to Use Linux Namespaces for Process Isolation

Jun 14, 2026 · 13:12
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How to Secure Linux SSH with Fail2ban and Key-Only Auth

Jun 13, 2026 · 8:36
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How to Set Up Linux Server Disk Encryption with LUKS

Jun 13, 2026 · 7:14
0:000:00

How to Use Linux cgroups v2 for Server Resource Control

Jun 12, 2026 · 13:07
0:000:00

How to Tame Linux Server NFS Performance with Tuning

Jun 12, 2026 · 8:16
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How to Use Linux Stratis for Storage Management

Jun 11, 2026 · 12:17
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How to Use Linux iptables for Advanced Network Firewall Rules

Jun 11, 2026 · 8:51
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How to Tame Linux Server Logs with Logrotate

Jun 10, 2026 · 11:01
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How to Diagnose and Fix Linux Server Packet Loss

Jun 10, 2026 · 9:22
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How to Diagnose Linux Server Memory Leaks

Jun 9, 2026 · 7:13
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How to Use Linux Systemd Timers for Scheduled Tasks

Jun 9, 2026 · 9:41
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How to Use Linux Namespaces for Network Isolation

Jun 8, 2026 · 8:31
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How to Use Linux Auditd for Server Security Monitoring

Jun 8, 2026 · 10:41
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How to Use Linux Control Groups for Resource Limits

Jun 7, 2026 · 11:55
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How to Benchmark Linux Server Disk I/O with FIO

Jun 7, 2026 · 10:12
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Why Your Linux Server Needs a Dedicated Patch Automation Schedule

Jun 6, 2026 · 11:24
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How to Diagnose and Fix DNS Resolution Failures on Linux

Jun 6, 2026 · 8:40
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How to Use Linux Namespaces for Container Security

Jun 5, 2026 · 13:21
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How to Recover a Linux Server from a Kernel Panic

Jun 5, 2026 · 12:03
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How to Rescue a Server With a Broken Root Filesystem

Jun 4, 2026 · 9:22
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How to Diagnose a Silent Disk Failure on Linux

Jun 4, 2026 · 8:32
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Why Your Linux Server Needs a Dedicated Journald Configuration

Jun 3, 2026 · 10:58
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How to Harden Your Linux Server with AppArmor Profiles

Jun 3, 2026 · 9:21
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How to Tame Linux Server Timeouts With Systemd Drop-In Units

Jun 2, 2026 · 14:01
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How to Harden Your Linux Server with SELinux Policies

Jun 2, 2026 · 9:13
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How to Audit SSH Keys Before They Become a Liability

Jun 1, 2026 · 9:21
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Why Your Sudoers File Needs Hardening Now

Jun 1, 2026 · 9:08
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When Your Server Swaps Itself to Death

May 31, 2026 · 10:52
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Zero Downtime Deployments With Blue-Green Servers

May 31, 2026 · 13:07
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Why Your Linux Server Needs a Dedicated nullmailer Setup

May 30, 2026 · 9:31
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Why Your Linux Server Needs a Dedicated WireGuard VPN Mesh

May 30, 2026 · 10:15
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The Case for Filesystem Snapshots Before Package Updates

May 29, 2026 · 10:56
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How to Tame Linux Kernel OOM Killer with Systemd

May 29, 2026 · 11:16
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Why Your Linux Server Needs a Dedicated Log Aggregation Pipeline

May 28, 2026 · 10:05
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Why Your Linux Server Needs a Dedicated Time-Series Database

May 28, 2026 · 10:16
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Why Your Linux Server Needs A Dedicated Monitoring Stack

May 27, 2026 · 7:23
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Why Your Linux Server Needs a Dedicated Bastion Host

May 27, 2026 · 10:33
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Why Your Linux Server Needs Immutable Root

May 26, 2026 · 13:55
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Why Your Linux Server Needs a Dedicated Ansible Control Machine

May 26, 2026 · 14:01
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Why Your NTP Setup Is Probably Drifting

May 25, 2026 · 9:11
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How to Debug a Kernel Panic in Production

May 25, 2026 · 8:13
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How Container Orchestration Went Mainstream

May 24, 2026 · 9:03
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Why You Should Monitor Server Disk Latency Now

May 24, 2026 · 10:43
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Automating Server Backups With Borgmatic

May 23, 2026 · 11:29
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The Case for Structured Server Documentation

May 23, 2026 · 12:08
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How to Diagnose a Silent Memory Leak

May 22, 2026 · 10:18
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Why Your SSH Key Setup Is Probably Wrong

May 22, 2026 · 8:32
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Why Your Server Needs A Dedicated Log Partition

May 21, 2026 · 9:25
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How Systemd Tamed Linux Boot Chaos

May 21, 2026 · 13:28
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How a Five-Dollar Typo Broke a Production Server

May 19, 2026 · 12:27
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