Linux 94 guides

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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.

All Install & setup Updates Networking Security Performance Backups Storage Apps & tools Troubleshooting Admin
Troubleshooting 10 min
Kernel panic basics on Linux
Practical Linux guide: kernel panic basics on Linux without the usual guesswork.
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Admin 14 min
Postfix relay basics
Practical Linux guide: postfix relay basics without the usual guesswork.
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Apps & tools 10 min
Wayland vs X11: what to know
Practical Linux guide: wayland vs X11: what to know without the usual guesswork.
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Performance 10 min
zram swap on low-memory systems
Practical Linux guide: zram swap on low-memory systems without the usual guesswork.
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Storage 18 min
LVM basics for storage management
Practical Linux guide: lVM basics for storage management without the usual guesswork.
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Storage 10 min
NFS share setup on Linux
Practical Linux guide: nFS share setup on Linux without the usual guesswork.
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Backups 10 min
Restore from tar backup
Practical Linux guide: restore from tar backup without the usual guesswork.
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Performance 10 min
SSD tuning myths and facts on Linux
Practical Linux guide: sSD tuning myths and facts on Linux without the usual guesswork.
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Security 18 min
AppArmor vs SELinux overview
Practical Linux guide: appArmor vs SELinux overview without the usual guesswork.
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Security 10 min
Audit installed packages for security
Practical Linux guide: audit installed packages for security without the usual guesswork.
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Security 10 min
Encrypt home directory (eCryptfs/fscrypt)
Practical Linux guide: encrypt home directory (eCryptfs/fscrypt) without the usual guesswork.
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Updates 10 min
Hold packages on APT systems
Practical Linux guide: hold packages on APT systems without the usual guesswork.
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Networking 18 min
iptables vs nftables overview
Practical Linux guide: iptables vs nftables overview without the usual guesswork.
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Performance 14 min
Swap file vs swap partition
Practical Linux guide: swap file vs swap partition without the usual guesswork.
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Install & setup 18 min
Full-disk encryption with LUKS
Practical Linux guide: full-disk encryption with LUKS without the usual guesswork.
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Install & setup 10 min
Switch Linux distro safely
Practical Linux guide: switch Linux distro safely without the usual guesswork.
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Backups 9 min
Backup /etc and /var before system changes
Cheap insurance before apt dist-upgrade or manual config edits.
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Security 12 min
Fail2ban basics for SSH
Automatically block IPs hammering SSH — simple jail config for small servers.
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Troubleshooting 18 min
Fix GRUB bootloader issues on Linux
Get Linux booting again when updates or Windows overwrote the bootloader.
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Networking 6 min
Flush DNS cache with systemd-resolved
Clear resolver cache after DNS migrations on modern Linux desktops and servers.
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Install & setup 12 min
First-boot Linux checklist
Post-install steps every Linux admin should run before calling the system production-ready.
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Networking 12 min
UFW firewall basics on Ubuntu and Debian
Turn on UFW without cutting off your own SSH session — sensible defaults for servers and desktops.
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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)