Showing Posts From
Linux
Jason Yang · 18 Apr, 2026
Dolphin as your default file manager on Ubuntu 24.04: install steps, the pitfalls that break file dialogs, and what still depends on Nautilus.
Linux
Jason Yang · 05 Dec, 2025
Still using grep? Meet ripgrep (rg), the ultra-fast Rust search tool that respects .gitignore by default and searches your codebase in seconds.
Linux
Jason Yang · 05 Dec, 2025
Run an Ubuntu laptop in clamshell mode — lid closed on an external monitor — while it still sleeps normally in your bag. The conditional HandleLidSwitchDocked fix, plus the display and input setup.
Linux
Jason Yang · 05 Dec, 2025
Install and configure OpenSSH Server on Ubuntu: the install steps, UFW firewall setup, and connection testing for Ubuntu 22.04, 24.04, and newer.
Linux
Jason Yang · 04 Dec, 2025
SSH lag on Ubuntu? Your Wi-Fi card may be entering sleep mode. Disable Wi-Fi power management to keep the connection responsive — quick step-by-step.
Linux
Jason Yang · 03 Dec, 2025
Need a static WiFi IP on Ubuntu without router access? Learn how to use nmcli for laptops (GUI-safe) or Netplan for servers to set a fixed IP.
Linux
Jason Yang · 03 Dec, 2025
Safely open a specific port on Ubuntu with UFW: check status, enable the firewall without losing SSH access, and verify your rules — step by step.
Linux
Jason Yang · 22 Nov, 2025
Run an old Ubuntu laptop as a 24/7 headless server with the lid closed: stop it sleeping from the lid, idle timeout, and every sleep target — the logind.conf fix plus systemctl mask (20.04/22.04/24.04).
Linux
Jason Yang · 13 Nov, 2025
Set an SSH login banner on Ubuntu 24.04 to warn unauthorized users and hide OS version info — configure /etc/issue.net and sshd_config the right way.
Linux
Jason Yang · 13 Nov, 2025
Remove ^M (carriage return) characters from text files on Linux/Unix after transfer from Windows — fixes with dos2unix, sed, tr, and Vim, how to verify, and why they appear.
Linux
Jason Yang · 12 Nov, 2025
Set Terminator as the default terminal on Ubuntu. This step-by-step developer guide covers installation, setup, and integration with VS Code.
Linux
Jason Yang · 12 Nov, 2025
Does your set guifont in .vimrc work on Windows but break on Ubuntu? Learn the critical syntax difference (colons vs. backslashes) for gVim fonts.
Linux
Jason Yang · 12 Nov, 2025
Install and manage a WireGuard VPN client on Ubuntu: set it up, connect with wg-quick up, verify the status, and safely disconnect.
Linux
Jason Yang · 12 Nov, 2025
Bulk-rename files in Linux with the rename command and Perl regex: normalize whitespace, strip unwanted metadata, and batch-rename in one quick command.
Linux
Jason Yang · 10 Nov, 2025
Chrome breaking Bluetooth audio on Ubuntu 24? Permanently fix the stutter by locking your device to the high-fidelity A2DP profile with pavucontrol.
