The living room is considered by many to be the central point of the home. Therefore, it makes sense that you would want to equip it with lots of enhancements to make it more relaxing and a great place for entertaining yourself, members of your family or household, and any guests. With so many different technological advancements over the last couple of decades, though, you might be stuck as to what you should pick and what would fit in with your lifestyle.To help you out a little, we have put together a list of some of the best pieces of tech you should consider investing in for your living r...

We will show the detail steps about how to setup the WireGuard VPN client on an Android phone/pad and configure the VPN client to connect a WG_VPN server in local network. The setup process contents three main steps:Install WireGuard and create a key-pair in WireGuard client.Add the Android client peer information in the WireGuard server’s config file.Config the Android WireGuard client to connect to the server.The test environment network configuration: Step 1. Install WireGuard App and create a key-pair in WireGuard client.Open the Android phone/pad Google App Play Store and searc...

In our previous tutorial, we have explained how to generate CSR which can be sent to CA for generating a signed certificate. In this tutorial, we will explain how to generate the signed certificate from CSR in Java. We will not use an actual CA but a self-signed certificate to act as a CA certificate.Since the CSR contains the subject information where a certificate needs to be generated and signed for. The key here is to extract the subject information from the CSR and then set it as the subject of the newly generated certificate.The source code can be found below which has a complete example...

How long have you been using GitHub? Have you ever wondered whether one can customize his profile page with some fancy looking? Indeed GitHub allows developers to customize profile page through a secret repository.The secret is to create a repository with the same name as your GitHub username. And you will be granted into the work of customizing your own profile page. In this post, we will show a simple walk through on how to create it.Create secret repositoryAs indicated by the term secret repository, it indicates the repository name will be a bit special. You are right, it should be the same...

First, let's take a look at below Go interview question:package mainconst s = "Go101.org"// len(s) == 9// 1 << 9 == 512// 512 / 128 == 4var a byte = 1 << len(s) / 128var b byte = 1 << len(s[:]) / 128func main() { println(a, b)}What would be the output in your mind? The output would be 4 0. Surprising?Before getting to the output values, some concepts in Go need to be introduced and explained in more detail.len() len() is a built-in function in Go to get the length of array, slice or string. There is one important statement about len() in Go specification.For some argume...

In GoLang, it doesn't support method overloading like in Java, hence sometimes it would be a headache to create functions to construct new structs with different parameters. Normally, we would construct the new function as below when want to let others create a new struct instance with explicit function call.type Queue struct { Name string}func NewQueue(name string) *Queue { return &Queue{name}}But with the scope and complexity of the struct increases, there might be more properties added to Queue.type Queue struct { Name string MaxLimit int}How to enhance the NewQueue() to accomo...

Google has announced its plan to block mixed content downloads in Chrome in February 2020 and now the day to block mixed content downloads is coming soon as we are nearing October when Chrome 86 is supposed to be released.What is mixed content downloads? According to Google, it is non-HTTPS downloads started on secure pages. For example, if you access a page called https://example.com/download, and in this page, there is a download link to http://download.example.com/something, this download link will not work.This is a security measure from Google to improve security of downloa...

Blocking is a common occurrence in an SQL server context, but if you are new to the world of database management you might not know what this issue entails and perhaps even fear that it is a sign of serious underlying problems.To allay your fears and clear up the mystery, here is a brief overview of blocking and the steps you can take to tackle it.Image Source: PixabaySQL blocking explainedSQL blocking according to SentryOne is an offshoot of the way that concurrent databases operate. Because processes can be executed simultaneously, it is likely that at some point more than one process will n...