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Author: Alex Chen

This author has written 7 articles
Read more about the article How to Fix SSH Error: “Bad owner or permissions on ~/.ssh/config”

How to Fix SSH Error: “Bad owner or permissions on ~/.ssh/config”

  • Post author:Alex Chen
  • Post published:June 4, 2025
  • Post category:Linux

When attempting to establish an SSH connection to a remote server, you might encounter the error message: Bad owner or permissions on ~/.ssh/config. This issue typically arises because the SSH…

Continue ReadingHow to Fix SSH Error: “Bad owner or permissions on ~/.ssh/config”
Read more about the article How to Access Serial Ports (COM & ttyS) in Windows Subsystem for Linux (WSL1 & WSL2)

How to Access Serial Ports (COM & ttyS) in Windows Subsystem for Linux (WSL1 & WSL2)

  • Post author:Alex Chen
  • Post published:May 16, 2025
  • Post category:Linux

Interfacing with serial ports within the Windows Subsystem for Linux (WSL) environment can present challenges, (more…)

Continue ReadingHow to Access Serial Ports (COM & ttyS) in Windows Subsystem for Linux (WSL1 & WSL2)
Read more about the article NVIDIA Driver Installation for Multiple Linux Kernels on Debian

NVIDIA Driver Installation for Multiple Linux Kernels on Debian

  • Post author:Alex Chen
  • Post published:May 7, 2025
  • Post category:Linux

When managing Linux systems with multiple kernels (e.g., stable and backports versions), a common challenge arises after installing NVIDIA drivers. (more…)

Continue ReadingNVIDIA Driver Installation for Multiple Linux Kernels on Debian
Read more about the article How to Disable the Terminal Error Bell in Ubuntu 18.04

How to Disable the Terminal Error Bell in Ubuntu 18.04

  • Post author:Alex Chen
  • Post published:May 7, 2025
  • Post category:Linux

Audible alerts, particularly the sound emitted from the terminal during certain operations, can sometimes be undesirable. This sound often serves as an error notification or feedback mechanism within the Ubuntu 18.04 environment. (more…)

Continue ReadingHow to Disable the Terminal Error Bell in Ubuntu 18.04
Read more about the article How to Fix the “System has not been booted with systemd” Error in WSL

How to Fix the “System has not been booted with systemd” Error in WSL

  • Post author:Alex Chen
  • Post published:May 7, 2025
  • Post category:Linux

When attempting to manage services using the systemctl command within a Linux distribution running on the Windows Subsystem for Linux (WSL), particularly WSL2, encountering errors like: (more…)

Continue ReadingHow to Fix the “System has not been booted with systemd” Error in WSL
Read more about the article How to Fix APT GPG Error: NO_PUBKEY / Repository Not Signed

How to Fix APT GPG Error: NO_PUBKEY / Repository Not Signed

  • Post author:Alex Chen
  • Post published:May 7, 2025
  • Post category:Linux

When managing software packages on Debian-based systems like Ubuntu, interactions with package repositories are essential. Occasionally, when attempting to update the package list using `apt-get update` after adding a new or third-party repository, (more…)

Continue ReadingHow to Fix APT GPG Error: NO_PUBKEY / Repository Not Signed
Read more about the article How to fix Ubuntu Boot Error: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

How to fix Ubuntu Boot Error: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

  • Post author:Alex Chen
  • Post published:May 7, 2025
  • Post category:Linux

Encountering a system halt during the Ubuntu boot process displaying the message “UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY” indicates a significant filesystem issue.
(more…)

Continue ReadingHow to fix Ubuntu Boot Error: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

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