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  Using msmtp to replace sendmail

sendmail is a mail client in Linux with many vulnerabilities and tedius configuration steps, many system administrators have disabled using it. Then how do we know what happens if a crontab script executes with error? Actually there are some replacements for sendmail, one is ssmtp, but this application is no longer maintained, we even cannot find its source code on Google. Fortunately, we can use msmtp to replace sendmail. The address : http://msmtp.sourceforge.net/ 1. Installation After downloa...

   sendmail, msmtp, replacement     2012-09-27 11:41:48

  All Programmers Are Self-Taught

When I was a teenager I played high caliber baseball. I’m competitive to a fault and when I decide I want to be good at something, results usually follow. Now I’m a third year undergrad studying computer science. There’s something critically different between programming and sports though: A pitching coach teaches you how to pitch, but a CS professor doesn’t teach you how to code. I was surprised that neither my TAs nor professors critiqued my code during my firs...

   Programming,Style,Habit,Self learning     2011-12-21 10:25:50

  What did iPhone bring to us in the past 5 years?

It is five years now since the first iPhone was released on 29th June 2007. In these 5 years, iPhone is the biggest variable in technology industry on this planet. It brings revolutionary change to many industries including the mobile phone, communication and Internet. It brings us into the era of mobile web. BuzzFeed collected a series of pictures to summarize the changes brought to us by iPhone in these 5 years. Here are some of them.1. Apple is the most valuable company in the worldIn August ...

   Apple,Change,World,Flash,iPhone     2012-07-09 14:27:32

  A simple example of drawing bar chart with label using d3.js

D3.js is a very popular graph library to help developers draw various kind of charts using JavaScript in a webpage. It utilizes the SVG format supported by all major modern browsers and can help developers get rid of the old age of Flash or server side graph drawing libraries. In this post, we will introduce some simple examples of drawing bar chart with labels using D3.js.  First, let's see what will be the final look of the graph drawn. Below is the complete source code for this example....

   JAVASCIPT,D3,BAR CHART,LABEL,TUTORIAL     2020-05-16 23:25:40

  Facebook fires a few Chinese employees

There is a big news happening in the Silicon Valley in past few days. Facebook fired a few Chinese employees for bringing outsiders into Facebook's campus and canteen on a charged basis. It's well known that tech companies in Silicon Valley provide attractive welfare to their employees. We often heard about the news that lots of free service(including free food, free laundry, free massage etc) are provided to employees to encourage them to stay effective when working. This is good news and welc...

   Facebook,Chinese employee, Chummy     2015-09-03 07:39:05

  The Five Stages of Hosting

As a proud VPS survivor, I thought it might be fun to write up five common options for hosting a web business, ranked in decreasing order of 'cloudiness'. People who aren't interested in this kind of minutia would be wise to pull the rip cord right here. 1. The Monastery You run your site on an 'application platform' like Heroku, Azure, or Google App Engine. You design your application around whatever metaphors and APIs the service lays out, and in return you are veiled from all t...

   Website hosting,Recommendations,Stages,Advantages     2012-01-30 05:43:42

  Learning Go

This year I'm going to try a new programming language - Go. I had this notion that compiled, type based languages are overly complex and reduces developer efficiency. However, after doing some reading about Go, it appeared to take a different path from the rest and felt like something worth trying. Acquainting a programming language is a journey. First few steps you take with it will define your perception about it. These first few steps went well for me with Go and it felt lik...

   Go,Google,Learning,Resource     2012-01-05 08:09:55

  Don't Give Your Users Shit Work

The problem with shit work is that no one likes doing it, but an awful lot of people say they do.Shit workTake a look at Twitter Lists. The idea behind Twitter Lists was that users would carefully cultivate lists on Twitter of different accounts they’re following (or not following). These could be divided into lists like Family, Friends, Coworkers, People I Find Mildly Attractive, People To Murder, People I Find Mildly Attractive And Want To Murder, and so on.The problem is that, anecdota...

   Design,Facebook,Twitter,User oriented     2011-11-03 13:28:59

  About JavaScript source map

Last week jQuery 1.9 was released. This is the last release before jQuery 2.0. It adds many new functions, one of them is the source map. By accessing http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js , you can scroll to the last line and you will see below line :  //@ sourceMappingURL=jquery.min.map This is source map, it is a separate file and it is put at the same directory as the source file. You can click here and see what it looks like. It's an very useful functio...

   Source map, JavaScript, jQuery     2013-02-01 07:06:44

  Facebook to be listed on Nasdaq. Stock symbol "FB"

The social networking company Facebook has chosen publicly to be traded on the Nasdaq Stock Exchange under the ticker symbol "FB". It means that Facebook and Apple, Google and other tech giants ultimately did not choose the New York Stock Exchange. The news is from New York Times citing on an anonymous source.By choosing Nasdaq, Facebook has its own considerations. Compared to the market and electronic hall of the New York Stock Exchange, NASDAQ is an purely electronic market. While the former i...

   Facebook,FB,Nasdaq,IPO     2012-04-06 01:10:07