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  How DNS lookup works

When accessing a website, a domain name would be needed normally. To get to the actual web server, the domain name must be mapped to an actual IP address and the IP address will be used to reach the web server. The process of finding the IP address from a domain name is called DNS lookup.  How does DNS lookup work? There are tons of domain name and IP address around the world, there must be some well-designed architecture to support fast lookup. This post will explain how this works. DNS Se...

   DNS,DNS LOOKUP     2022-09-09 23:11:03

  A tutorial on Github Actions

Github Actions is a CI/CD service created by Github. It aims to make it easy to automate all software workflows, now with world-class CI/CD. Build, test, and deploy code right from GitHub. It was launched in October 2018 and was officially available to all users in November 2019. This post will give an introduction of Github Actions and explain how it works. What is Github Actions Normally Continuous Integration includes some steps, fetching code, running test, sshing into remote server in...

   GITHUB,GITHUB ACTIONS,CI,CD     2019-12-23 05:33:39

  How Artificial Intelligence is Changing the Future of Web Design & Development

Artificial intelligence is having a say in how web designs are shaping up nowadays. Many within the industry have even gone on to say that AI is the future of web design and development. The impact of AI on web design and development can be felt by understanding how web design has evolved over the years. Traditionally, all websites were created using HTML. Then, with the advancement of technology, the code structure of websites began to change and became more sophisticated. Now, it has come to a...

   HIRE WEBSITE DESIGNER, OUTSOURCE WEBSITE DESIGN SERVICES     2020-02-13 02:21:26

  Shell script common interview questions

Shell script is frequently used when monitoring system status on Linux. It's not an easy task to write shell script but it's a very important skill for developers and system administrators to ease work and automate common tasks. This post will share some common interview questions about shell script. 1. Get random characters(8 characters) Method 1 # echo $RANDOM |md5sum |cut -c 1-8 471b94f2 Method 2 # openssl rand -base64 4 vg3BEg== Method 3 # cat /proc/sys/kernel/random/uuid |cut -c 1-8 ed...

   LINUX,INTERVIEW,SHELL SCRIPT     2018-09-28 10:46:00

  Goodbye Manual Processes, Hello Automation Certificate Lifecycle Management Like It’s Supposed to Be

At the heart of every story lies a villain and a hero. In the never-ending story of certificate lifecycle management, there’s no bigger villain than manual effort. Destructive, irrepressible, and risk-laden, this villain causes nothing but mayhem and loss. Automation, the hero, is the complete opposite of manual effort. Proactive, solution-oriented, and breach-proof, this hero deserves recognition, allegiance, and attention, yet they get none of that from a majority of today’s organi...

   DATA SECURITY,CERTIFICATE     2023-06-20 08:10:02

  A Baseline for Front-End Developers

I wrote a README the other day for a project that I’m hoping other developers will look at and learn from, and as I was writing it, I realized that it was the sort of thing that might have intimidated the hell out of me a couple of years ago, what with its casual mentions of Node, npm, Homebrew, git, tests, and development and production builds. Once upon a time, editing files, testing them locally (as best as we could, anyway), and then FTPing them to the server was the essential ...

   Front-end,JavaScript,Baseline     2012-04-18 07:13:49

  Code reviews in the 21st Century

There's an old adage that goes something like: 'Do not talk about religion or politics'.  Why?  Because these subjects are full of strong opinions but are thin on objective answers.   One person's certainty is another person's skepticism; someone else's common sense just appears as an a prior bias to those who see matters differently.  Sadly,  conversing these controversial subjects can generate more heat than light.   All too often people can get s...

   Code review,21 Centuary     2012-02-10 06:39:14

  Why we don’t hire .NET programmers

Skip my post and read this one instead.  It says the same thing, but less offensively.  (Or, rather, more offensively to Facebook and Google employees, less offensive to .NET developers, though the underlying message is the same.) Tuesday midnight edit: After >500 comments, >1000 tweets, and >1000 Facebook likes, I’m closing comments on this thread so we can all get back to work.  The very last comment takes the cake, however, and is a fitting close.  Th...

   ASP.NET,High level,Low flexibility,Weakness     2011-12-20 08:43:28

  Before Python

This morning I had a chat with the students at Google's CAPE program. Since I wrote up what I wanted to say I figured I might as well blog it here. Warning: this is pretty unedited (or else it would never be published :-). I'm posting it in my "personal" blog instead of the "Python history" blog because it mostly touches on my career before Python. Here goes.Have you ever written a computer program? Using which language?HTMLJavascriptJavaPythonC++COther - which?[It turned out the students ha...

   Python,History,Programming language,B     2012-01-18 08:08:53

  Ruby WinRM undefined method `split' for nil:NilClass

WinRM service is a service provided by Windows to enable remote access a Windows system. It is similar to what SSH is for *nix. And it is frequently used in applications which want to automate process or accessing remote Windows system and perform actions on them. Ruby also provided the WinRM gem which is an implementation of the WinRM service.  When using WinRM gem, one may often want to use :negotiate as the transport protocol for authentication. This transport will negotiate using d...

   RUBY,WINRM,INIT_AUTH,PROXY     2017-03-08 02:21:09

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