Linux
Networking
14 guides
Linux Networking Guides
Static IP, firewall, VPN Browse 14 linux networking tutorials with step-by-step instructions.
Start here
Popular linux networking how-to guides — good first reads in this topic.
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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Samba share for Windows clients
Practical Linux guide: samba share for Windows clients 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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Fix NetworkManager not connecting
Practical Linux guide: fix NetworkManager not connecting without the usual guesswork.
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All Networking guides
14 step-by-step tutorials for Linux.
Connect to Wi‑Fi with nmcli on Linux
CLI Wi‑Fi when the desktop applet is broken or you are on SSH.
Read guide
Samba share for Windows clients
Practical Linux guide: samba share for Windows clients without the usual guesswork.
Read guide
Diagnose network issues (ping, ss, traceroute)
Practical Linux guide: diagnose network issues (ping, ss, traceroute) without the usual guesswork.
Read guide
Fix NetworkManager not connecting
Practical Linux guide: fix NetworkManager not connecting without the usual guesswork.
Read guide
Set up OpenVPN client on Linux
Practical Linux guide: set up OpenVPN client on Linux without the usual guesswork.
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Set up Wi‑Fi from the command line
Practical Linux guide: set up Wi‑Fi from the command line without the usual guesswork.
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Set up WireGuard on Linux
Practical Linux guide: set up WireGuard on Linux without the usual guesswork.
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Change DNS servers on Linux
Point Linux at reliable resolvers and confirm systemd-resolved is not fighting you.
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Configure static IP on Linux
Give servers and appliances stable IPs — netplan examples you can adapt.
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Test an open port with nc on Linux
Quick port checks for web, SSH, and mail troubleshooting.
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Bind9 local DNS server intro
Practical Linux guide: bind9 local DNS server intro without the usual guesswork.
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iptables vs nftables overview
Practical Linux guide: iptables vs nftables overview without the usual guesswork.
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Flush DNS cache with systemd-resolved
Clear resolver cache after DNS migrations on modern Linux desktops and servers.
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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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More Linux topics
Explore other guide categories on Linux.
Install & setup
Distro installs, dual-boot, LUKS (12)
Updates
APT, upgrades, package holds (8)
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)