Linux
94 guides
Linux Guides
Linux guides that respect your data — partitioning warnings, copy-paste commands you can audit, and verification steps that prove the fix worked.
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Search and filter 94 published Linux guides.
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Install & setup
Updates
Networking
Security
Performance
Backups
Storage
Apps & tools
Troubleshooting
Admin
Check disk health with SMART on Linux
Catch failing drives before they take your data to hell.
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Restart a failed systemd service on Linux
Bring a service back after you fixed the config — standard recovery flow.
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Test Certbot renewal with a dry run
Prove certificates will renew before you get emailed about expiry.
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Check failed SSH login attempts on Linux
See who is hammering SSH and whether your keys are enough.
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Connect to Wi‑Fi with nmcli on Linux
CLI Wi‑Fi when the desktop applet is broken or you are on SSH.
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Dry-run an rsync backup on Linux
Preview what rsync will change before you mirror or delete files.
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Verify a downloaded Linux ISO checksum
Confirm your installer ISO is not corrupted or tampered with before you flash USB.
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Bash scripting basics
Practical Linux guide: bash scripting basics without the usual guesswork.
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Install Certbot for Let’s Encrypt
Practical Linux guide: install Certbot for Let’s Encrypt without the usual guesswork.
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Manage users and groups
Practical Linux guide: manage users and groups without the usual guesswork.
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Monitor server with htop and iostat
Practical Linux guide: monitor server with htop and iostat without the usual guesswork.
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Recover root password (single-user mode)
Practical Linux guide: recover root password (single-user mode) without the usual guesswork.
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Samba share for Windows clients
Practical Linux guide: samba share for Windows clients without the usual guesswork.
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vim/nano essentials for server admin
Practical Linux guide: vim/nano essentials for server admin without the usual guesswork.
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/etc/fstab explained
Practical Linux guide: /etc/fstab explained without the usual guesswork.
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cron vs systemd timers
Practical Linux guide: cron vs systemd timers without the usual guesswork.
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Fix read-only filesystem errors
Practical Linux guide: fix read-only filesystem errors without the usual guesswork.
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Install LAMP stack on Ubuntu
Practical Linux guide: install LAMP stack on Ubuntu without the usual guesswork.
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Install Nginx reverse proxy
Practical Linux guide: install Nginx reverse proxy without the usual guesswork.
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Mount external drives on Linux
Practical Linux guide: mount external drives on Linux without the usual guesswork.
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Restic encrypted backups intro
Practical Linux guide: restic encrypted backups intro without the usual guesswork.
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Timeshift snapshots on Linux desktop
Practical Linux guide: timeshift snapshots on Linux desktop without the usual guesswork.
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Diagnose network issues (ping, ss, traceroute)
Practical Linux guide: diagnose network issues (ping, ss, traceroute) without the usual guesswork.
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dist-upgrade vs release upgrade
Practical Linux guide: dist-upgrade vs release upgrade without the usual guesswork.
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Topics we cover
Install & setup
Distro installs, dual-boot, LUKS (12)
Updates
APT, upgrades, package holds (8)
Networking
Static IP, firewall, VPN (14)
Security
SSH, permissions, hardening (10)
Performance
systemd, logs, load, swap (11)
Backups
rsync, restic, snapshots (7)
Storage
mounts, fstab, LVM (7)
Apps & tools
Docker, LAMP, scripting (10)
Troubleshooting
GRUB, boot recovery, services (8)
Admin
Users, certs, mail relay (7)