SEARCH KEYWORD -- File system structure
Introducing LocalDB, an improved SQL Express
Updated 2011-11-28: Added reference to the walkthrough of using LocalDB in Visual Studio 2010 and to the new LocalDB Installer. Updated 2011-11-02: Added reference to .NET Framework 4 support for LocalDB in the Q&A section. Introduction It gives me great pleasure to introduce a new version of SQL Express called SQL Express LocalDB. LocalDB is created specifically for developers. It is very easy to install and requires no management, yet it offers the same T-SQL language, programming surfac...
LocalDB,Microsoft,SQL Express 2012-03-31 00:13:43
Simple tutorial on git cherry-pick
It is a common operation to move code from one branch to another branch in a multi-branch git repository. Normally there are two scenarios: Want to move all changes in one branch to another branch, now it's called git merge Want to move only some change/changes from one branch to another branch, now it's called git cherry-pick Usage The purpose of git cherry-pick is to apply some change from one branch to another branch. git cherry-pick [commitHash] The above command is to app...
GIT,GIT CHERRY-PICK,TUTORIAL 2020-05-02 00:02:58
Permutation implementation in Java
Permutation is a very basic and important mathematic concept we learned in school. It has very practical applications in real world. For example, in football. In simple, permutation describes all possible ways of doing something. For example, there are six permutations of the set {1,2,3}, namely: (1,2,3), (1,3,2), (2,1,3), (2,3,1), (3,1,2), and (3,2,1). In general, for n items, there are n! number of permutations to arrange these items. How can we implement this algorithm in programming programm...
Permutation,Implementation,Java,Sample 2015-03-26 02:18:14
The big four in Taiwan can compete with Samsung
Taiwan's IT industry has a tense competition with South Korea, TSMC chairman Morris Chang said that although Samsung Electronics is a powerful opponent, ,there is only one Samsung in South Korean; in contrast, Taiwan has the TSMC, HTC, MediaTek and Hon Hai, they can challenge Samsung altogether.Morris Chang pointed out that Samsung Electronics is the company with biggest market capitalization in South Korea, the market value is roughly $200 billion; but the second largest company in S...
Web Security: In-Depth Explanation of X-XSS-Protection
What is X-XSS-Protection X-XSS-Protection is an HTTP response header designed to enable or configure built-in cross-site scripting (XSS) filters in certain versions of Internet Explorer, Chrome, and Safari. The purpose of these filters is to detect reflected XSS attacks in the response and prevent the loading of pages, thereby protecting users from such attacks. The X-XSS-Protection response header was initially introduced by Microsoft in Internet Explorer 8 to control the browser's XSS filter. ...
X-XSS-PROTECTION,WEB SECURITY,CONTENT SECURITY POLICY,XSS,CSP 2023-11-29 01:48:40
Check whether a remote server port is open on Linux
As a system administrator or network engineer or application developer, there is a need to check whether a port on remote server is open so that you can tell whether the service under check is running or not. In this post, we would cover a few methods to check whether a remote server port is open or not on Linux. telnet telnet is the most frequently used command on both Windows and Linux to check port. The simple usage for this command is telnet [host] [port] When the port is open, the o...
Using keytool to create certificate chain
JDK provides a command line tool -- keytool to handle key and certificate generation. This tool has a set of options which can be used to generate keys, create certificates, import keys, install certificate and export certificates etc. In this tutorial, we will show how to create certificate chain using keytool. If you want to understand how to create certificate chain programmably, please refer to Generate certificate in Java -- Certificate chain. To begin, we first generate a key pair whi...
JAVA,KEYTOOL,CERTIFICATE CHAIN,CERTIFICATE 2015-12-17 07:09:33
How Computers Boot Up
The previous post described motherboards and the memory map in Intel computers to set the scene for the initial phases of boot. Booting is an involved, hacky, multi-stage affair – fun stuff. Here’s an outline of the process: An outline of the boot sequence Things start rolling when you press the power button on the computer (no! do tell!). Once the motherboard is powered up it initializes its own firmware – the chipset and other tidbits – and tries to ...
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...
Vim: revisited
I’ve had an off/on relationship with Vim for the past many years. Before, I never felt like we understood each other properly. Vim is almost useless without plugins and some essential settings in .vimrc, but fiddling with all the knobs and installing all the plugins that I thought I needed was a process that in the end stretched out from few hours to weeks, months even; and it the end it just caused frustration instead of making me a happier coder. Recently, I decided to give Vim ano...
Linux,Editor,Vim,Setup,Quick guideline 2011-12-12 07:55:27
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