[Solved] How to install Realtek rtl8812au WiFi Driver in Linux

[UPDATE August 15, 2018] The Github repo in the original post has been fixed, now you can follow the steps in the original post to install the Linux driver. [UPDATE June 7, 2018]: If you are using Ubuntu 18.04 LTS or any distro with kernel 4.15 (or above), then the following steps will not work. The build will fail with kernel 4.15. Hopefully someone will update the source code to be compatible with the latest […]

What can I do about Meltdown and Spectre security vulnerabilities

The Meltdown and Spectre security vulnerabilities in the modern CPU processors have been on the news headline and caused quite some panic (here, here, here, and more) because the vulnerabilities can theoretically allow attackers to steal private information without user’s knowledge. Major OS vendors such as Microsoft, Google, Apple and Linux all started working on a patch on the OS level way before the vulnerabilities were released in public and the patches will soon be […]

Earn extra cash easily without extra work

Disclaimer: the article contains some referral links which will give me monetary incentives when you sign up the programs by using the links. You do not have to use my referral links, but I would greatly appreciate if you do. Holiday shopping is stressful and stretches everyone’s budget, including mine. But fortunately I have been earning extra cash throughout the year to prepare for the potential budget overhaul. I earned around $600 extra cash in […]

How to switch to Linux from Windows gradually

This post is for those who had some experience with Linux or had tried Linux before, but never made up mind to switch to it. Linux has become better and better in every aspect of the operating system, especially with the new release of Ubuntu 17.10 and Linux Mint 18.3, I think it is the right time to dive into Linux and eventually switch to Linux from Windows. However, if you think you are still […]

How to install Android 7 Nougat on Sprint HTC One M7 smartphone

I have a old HTC One M7 smartphone sitting there for two years and both HTC and Sprint have stopped releasing updates long time ago, so it is still running Android 5 Lollipop. There is no trade-in value for this phone and I feel like it is a waste to throw away the phone, so I decided to root it and install a custom ROM to see if it will work. After some research online […]

Identifier is null or empty error when adding stored procedure in entity framework data model

You can add database tables and stored procedures in your Entity Framework data model, but you may encounter an ArgumentException error in Visual Studio when adding a stored procedure: An exception of type ‘System.ArgumentException’ occurred while attempting to update from the database. The exception message is: ‘Identifier is null or empty’ The error message is confusing because the actual cause of this error is that the stored procedure does not have a return value. In […]

Session Cookie Does Not Contain the “Secure” Attribute

Recently we scanned one of our web applications by two famous source code analysis tools: Qualy’s Web Application Scanning tool and HPE’s Fortify Static Code Analyzer, but the results are different. Qualy’s WAS picked up one XSS security vulnerability and two information disclosure warnings, but HPE’s Fortify didn’t find anything vulnerable. It would be interesting to find out why, but I am not gonna cover that today. Today I would like to talk about one […]

CCleaner not clean, distributed with malware

CCleaner is a popular and powerful PC tool that helps users to clean up their PCs by deleting temporary files, emptying recycle bins, deleting registry leftovers after program uninstall, etc. The free version is at the top of the popular software list on FileHippo.com. On September 13, 2017, Cisco’s Talos cybersecurity reported that CCleaner has been distributed with malware for almost one month, and the infected version is the 32-bit version of CCleaner 5.33 which […]

How to add days, months, and years to a date in JavaScript

Several years ago I wrote a post about how to add days, months, and years in JavaScript, and it was a quick-and-dirty workaround for a project and I didn’t pay much attention to value checking when writing the JavaScript function. For example, if the old date is 07/19/2017 and you need to know what date it is after adding 25 days, the JavaScript function will throw an error because 07/44/2017 is not a valid date […]

Lock screen images for Samsung Galaxy S6 and Note5

Would you like to read an inspirational message from the Bible when you turn on the screen of your phone? I just made two lock screen images for Samsung Galaxy S6 and Note5 with the Bible verses: Philippians 4:13 and Proverbs 16:3. Here is what it looks like on my phone: If you want to download the images and use them for your lock screen, you can click here or the “Free Stuff” link from […]