Linux

How do I recover accidentally deleted files on ext4 file systems in Linux?

Recovering accidentally deleted files on an ext4 file system can be challenging because ext4 does not natively provide an undelete feature. When a file is deleted, its metadata is removed, making recovery difficult. However, there are methods and tools you can try depending on the situation. Here’s a step-by-step approach: Immediate Actions After Deletion Stop […]

How do I configure and troubleshoot NTP (Network Time Protocol) for time synchronization?

Configuring and troubleshooting NTP (Network Time Protocol) for time synchronization is an essential task in IT infrastructure to ensure accurate timekeeping across systems. Here’s a comprehensive guide for configuration and troubleshooting: Configuring NTP: Step 1: Install NTP Linux: Install the NTP package using the package manager: sudo apt update && sudo apt install ntp or […]

How do I configure sudo privileges for specific users on Linux systems?

Configuring sudo privileges for specific users on Linux systems involves editing the sudoers file or creating a custom configuration file within the /etc/sudoers.d directory. Here’s a step-by-step guide: Step 1: Edit the sudoers File Open a terminal and log in as a user with administrative privileges. Use the visudo command to safely edit the sudoers […]

How do I troubleshoot slow SCP or SFTP file transfers on Linux servers?

Troubleshooting slow SCP (Secure Copy Protocol) or SFTP (Secure File Transfer Protocol) file transfers on Linux servers involves identifying bottlenecks and optimizing the system. Here is a systematic approach to diagnose and resolve the issue: 1. Check Network Performance Bandwidth: Verify the available bandwidth between the source and destination servers using tools like iperf or […]

How do I resolve kernel panic issues in Linux VMs running on VMware?

Resolving kernel panic issues in Linux VMs running on VMware can be challenging, as it involves diagnosing the root cause of the problem. Here are the steps you can take to identify and resolve the issue: 1. Understand the Kernel Panic A kernel panic is triggered when the Linux kernel encounters a critical error that […]

How do I troubleshoot Linux servers that fail to boot after a kernel update?

Troubleshooting Linux servers that fail to boot after a kernel update requires a systematic approach to identify and resolve the issue. Here’s how you can handle this situation: 1. Access the Boot Loader When the server boots, access the GRUB boot loader menu by pressing Esc, Shift, or Esc + Shift, depending on your Linux […]

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