This post is a summary of VMware’s white paper Introduction to VMware vSphere. ESXi is the hypervisor (virtualization layer) on bare metal servers that abstracts…
Reading notes Chp 1. Introduction “When you’ve seen one medical practice, you’ve seen one medical practice.” Chp 2. An Anatomy of Medical Practice There is…
DICOM is a standard for medical imaging exchanges, originally in radiology, but later expanded into other departments where mass imaging data are acquired, such as…
Most of the text processing can be processed by awk and sed. Sed is non-interactive stream editor that allows you to specify all editing instructions…
Reading Notes: Part I: Thinking About Thought Chp 1. Everything’s an Inference Itβs possible to make fewer errors in judgment by following a few simple…
Cron and anacron We all know cron is a job scheduler. Many admin uses crontab to manage scheduled task. It is also important to know…