David Cao

David Cao

David is a Cloud & DevOps Enthusiast. He has years of experience as a Linux engineer. He had working experience in AMD, EMC. He likes Linux, Python, bash, and more. He is a technical blogger and a Software Engineer. He enjoys sharing his learning and contributing to open-source.

Fix SSH timed out waiting for input: auto-logout in Linux

Addressing SSH auto-logout issues often involves configuring two key settings: the TMOUT shell variable and the StopIdleSessionSec setting in /etc/systemd/logind.conf.  Each plays a distinct role in session management and inactivity handling.   Here is the error we usually get when…

7 Ways to Remove Blank Spaces in Excel

As an Excel user, you have likely encountered the problem of having unwanted spaces within your cell contents. Whether it’s due to importing data from another source, copy-pasting, or simply typing too quickly, it’s important to know how to swiftly…

2 Easy Ways to find blank spaces in Excel

In Excel, it’s important to make sure that the data we work with is clean and doesn’t contain unnecessary spaces. Blank spaces, especially trailing or leading spaces in cells, can cause issues in data processing and analysis. In tasks like…

3 Linux commands to list network interfaces

Introduction Linux stands as a bastion of network management, offering a suite of powerful tools and commands for effective network administration. Among these, understanding and managing network interfaces is a crucial skill for any Linux system administrator. Network interfaces in…