SEARCH KEYWORD -- NIL CHECK


  JavaScript finite state machine

Finite state machine is a very useful design model, it can be used to simulate many events in the world. In short, finite state machine has three features: Number of states is finite At any moment, one object can only be in one state In some condition, it will transfer from one state to another state In JavaScript, finite state machine can be applied in many places. For example, one menu element on a webpage. When the mouse hovers on the menu, the menu will show up, while the mouse moves away...

   JavaScript,Finite state machine,State     2013-09-02 11:00:57

  Essential Rules To Protect Your Credit Card When Shopping Online

You have to protect yourself and your credit card online while shopping. There are a number of ways to do this, but some prove more technical than others. Your basic best defense includes sensible use and layers of protection. The best way to do this is to pick and choose which stores at which you charge purchases. You can reduce the chance of losing your card details to a thief by declining to allow the retailer to store your credit card. Use a password manager to save your passwords and make a...

   SECURITY,CREDIT CARD,MASTERCARD     2019-10-09 08:40:07

  Run executable jar on double click on Windows

Normally after installing Java, there will be an association between .jar and the javaw.exe. This enables the executable jar to be opened on double click. You can check the association by going to Control Panel -> Programs -> Default Programs -> Associate a file type or protocol with a program. The default program of a file type can be changed in this dialog. However sometimes there are cases where the file association for .jar may be altered after a third party application instal...

   JAVA,WINDOWS,JAR,EXECUTABLE JAR     2016-05-12 03:05:04

  17 Best Practices One Must Follow While Using Mobile Apps

      It is no secret that we use mobile applications everyday but we don't know how to use them optimally. As a result, we face plenty of problems with our mobile phones as well as the installed applications. Here are some best practices you can follow to avoid to any mobile phone and application anomalies.  Over the past several years, smartphones have started to dominate the technology scene.  These phones have installed mobile applications installed that can complete...

   mobile apps, best practices, iphone, android     2015-01-27 20:12:25

  How to Encrypt Your Online Conversations

Do you ever get the feeling that somebody might be listening to or reading your private conversations? You're not crazy.  Online platforms don’t hide that they use data from chats, searches, emails, and other places for targeted advertisements. Aside from being a massive invasion of privacy, it also puts your security at risk.  But it is possible to prevent people from snooping on you. All you need is a little encryption. Check out these different ways you can add encryption into...

   DATA SECURITY,VPN     2020-01-30 07:33:29

  Create temp file in Bash using mktemp and trap

When working on Linux Bash, sometimes there is need to create temporary file. A common way of creating temp file on Linux is creating some file in /tmp directory. However there is security risk when creating temp file in /tmp directory. This post will show how to securely create temp file in Linux Bash. When creating file in /tmp directory, there are some security risks. This directory can be accessed by any user on the system, any user can write data into this directory as well. The files creat...

   LINUX,MKTEMP,TRAP,TEMP FILE     2019-12-30 23:28:23

  The First Bite on etcd Code

Etcd, one of the crucial components of Kubernetes. If APIServer is the heart, then etcd is the blood vessel that sends the end state of Kubernetes resources to various “organs”, providing high-speed, stable storage, and supporting APIServer’s high load performance. What if the etcd is not working properly? Just the condition as someone has a vascular disease. The deeper you know about them, the better diagnose you can make when issues occur. from unspl...

   SOURCE CODE,ETCD     2022-02-12 01:03:14

  Secure Your Go Code With Vulnerability Check Tool

Security vulnerabilities exist in any language and any code, some are written by ourselves, but more are from the upstream dependencies, even the underlying Linux. We have discussed the security protection methods for Go and Kubernetes Image in Path to a Perfect Go Dockerfile and Image Vulnerability Scanning for Optimal Kubernetes Security, in which the security scanning was performed based on generic. As the Go community grows, more and more open-source packages have caused ...

   GOVULNCHECK,GOSEC,GOLANG     2022-10-29 23:43:20

  Write HTML easily with Emmet and Haml

Writing HTML codes is very boring and tedious as it has many tags and it's static. One solution is to use template, filling content based on other's skeleton. One another solution is high speed writing. We can write HTML codes with Emmet and Haml. These two ways have similar functions but with different characteristics. Haml is based on Ruby, so when working on Ruby/Rails projects, we recommend to use Haml, otherwise we recommend to use Emmet. 1. Emmet Emmet is a editor plugin, the official webs...

   HTML,Emmet,Haml     2013-06-11 19:46:02

  Many Chinese applicants to US universities may be affected by Gmail cut out

Just after Christmas, many Chinese found that they could not connect to Gmail anymore in mainland China. Since Google announced leaving from China in 2010, the web version of Gmail was not accessible anymore. But people from China could still access Gmail through some Gmap apps. This time, Gmail is not accessible even with these apps. It is said that all the mail service protocols of Gmail including IMAP/POP/SMTP have been cut out by Chinese government. This means no mails can be sent to or rece...

   Gmail, China, Gmail cut out     2014-12-30 00:35:28

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