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

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

By: 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. Economics
Episodes
  • How to Manage Linux Server Secrets with HashiCorp Vault

    How to Manage Linux Server Secrets with HashiCorp Vault
    Jun 29 2026
    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 backend for database credentials, and integrating with applications via the Vault Agent. Using a concrete example of rotating PostgreSQL credentials, they explain why Vault is essential for modern server security — especially in multi-server environments. They also touch on the trade-offs versus simpler tools like encrypted config files, and share a practical workflow for dynamic secrets. Whether you're a sysadmin looking to eliminate hardcoded credentials or just exploring secret management, this episode gives you a clear, actionable starting point. #HashicorpVault #LinuxServerAdmin #DevOps #SRE #SecretsManagement #CyberSecurity #PostgreSQL #SystemAdministration #Technology #ServerSecurity #DynamicSecrets #InfrastructureAsCode #VaultAgent #DatabaseCredentials #Linux #Sysadmin #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo
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    12 mins
  • How to Use Linux Server Network Bonding for Redundancy and Performance

    How to Use Linux Server Network Bonding for Redundancy and Performance
    Jun 28 2026
    Episode 79 of Linux Server Admin with Fexingo digs into network bonding — combining multiple physical NICs into a single logical interface for failover and increased throughput. Lucas and Luna walk through the main bonding modes: active-backup for simple redundancy, balance-xor and 802.3ad for load balancing, and balance-alb for adaptive load balancing without switch support. They explain how to configure bonding using the /etc/network/interfaces file and the ifenslave package, verify the bond status via /proc/net/bonding/bond0, and test failover by unplugging cables. The episode covers real-world use cases including critical server uplinks, virtualization hosts, and storage networks. Specific commands and config examples are given throughout. By the end, listeners will know how to set up a bonded interface that survives a NIC or cable failure without dropping connections. #LinuxServerAdmin #FexingoBusiness #BusinessPodcast #Sysadmin #ServerEngineering #Bash #NetworkBonding #NICTeaming #LinuxNetworking #ActiveBackup #8023ad #LACP #LoadBalancing #Failover #ifenslave #UbuntuServer #RedHatEnterpriseLinux #DataCenter Keep every episode free: buymeacoffee.com/fexingo
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    10 mins
  • Linux Server VLAN Tagging with systemd-networkd

    Linux Server VLAN Tagging with systemd-networkd
    Jun 28 2026
    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 scenario: a multi-tenant web host needing to isolate customer traffic without buying new hardware. They explain how to configure 802.1Q VLANs on a single physical interface, assign IPs, and verify connectivity — all with systemd-networkd's clean .network and .netdev files. No more legacy ifcfg scripts or manual vconfig commands. By the end, you'll know how to carve a single NIC into multiple logical networks in under ten minutes. #Linux #Sysadmin #SystemdNetworkd #VLAN #8021Q #ServerAdmin #Networking #Bash #MultiTenant #NetworkIsolation #Technology #FexingoBusiness #BusinessPodcast #LinuxServer #Systemd #NetworkConfig #DevOps #ITInfrastructure Keep every episode free: buymeacoffee.com/fexingo
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    8 mins
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