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.

RHCSA Practice Exam

RHCSA Practice Exam A Here are some tips to ensure your exam starts with a clean environment:   After applying these tips, you’re ready to get started. Good luck!   Answers: Reset the root password on boot If you are…

5 formas de verificar la dirección IP en Linux

Cómo verificar la dirección IP en Linux En el entorno de Linux, es esencial poder verificar la dirección IP de su sistema. La dirección IP es un identificador único asignado a cada dispositivo conectado a una red, lo que le…

50 RHCSA exam questions and answers

The RHCSA (Red Hat Certified System Administrator) exam is a performance-based certification exam offered by Red Hat. It is designed to validate the skills and knowledge required to effectively administer Red Hat Enterprise Linux systems in various enterprise environments. The…

Search files by size in Linux

There are a few different ways to search files by size in Linux. One way is to use the find command. The find command is a powerful tool that can be used to search for files based on a variety…

Enable SSL in Postgresql

Enabling SSL in PostgreSQL is a straightforward process that only requires three simple steps:   Obtain server certificate and key files for Postgres On PostgreSQL server, we need 3 certificates in data directory for SSL configuration. They are:   In…