In this post, we will show you a simple way to project a phone to a PC in Windows 10. Windows 10 provides a feature called Project to this PC which allows to project other devices on a PC installed with Windows 10.Below are the steps for doing this.1.Press Win + i key to open Windows Settings.2. In System menu, click Project to this PC option. Then select either Available everywhere on secure networks or Available everywhere.3. Now open your phone which you want to project. Ensure it connects to the same WiFi as your PC.4. On your phone, go to Settings and click More connections. You will f...

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 created in this directory can also be read by other users. pike@DESKTOP-G352RBR:/tmp$ touch /tmp/info...

There is some recent change for a built-in tool on Windows 10 where the Snipping Tool is moving. Snipping Tool is a tool on Windows for taking screenshots and editing screenshots taken. But now it's moving to a new tool called Snip & Sketch which has enhanced features.Now if you try to launch Snipping Tool, you will notice there is a notification telling that the Snipping tool is moving to a new tool called Snip & Sketch.And you can click Try Snip & Sketch to launch the new tool.The new tool has a new modern face and it has a clear difference as the old tool where it has a clear in...

Apache Superset (incubating) is a modern, enterprise-ready business intelligence web application. Compared with business-focused BI tool like Tableau, superset is more technology-navy. It supports more types of visualization and able to work in distributed manner to boost the query performance. Most importantly, it is free of charge!An example dashboard:Let’s go and set it up.Create a virtualenvAssume Anaconda is installed for python management.# create a virtualenv with python 3.6conda create -n superset python=3.6Install in virtualenventer the virtual environment and follow the of...

Why do you want to reset your Mac computer? Probably, you are thinking about selling it. Alternatively, maybe the computer has become too slow thus frustrating you most of the time. Additionally, you may simply be considering freeing up some space. Regardless of your reasons, the first thing you should realize is that resetting the machine is a demanding task. Additionally, it would be great to remember that in resetting the machine, you are basically formatting the hard drive fully while reinstalling macOS or Mac OS X. Before commencing, you should start with the following: §  Backi...

More and more people are using Mac computers or switch from Windows or other OS to MacOS, there are lots of shortcut keys which can help improve the work efficiency or ease operations.This post will try to list some commonly used shortcut keys in Mac. But before that, let's first know some common keys on a Mac computer keyboard.There are four major function keys: Command, Control, Option and Shift. Most of the shortcut keys will combine the functional key and other key.BasicCommand key is the most important key in Mac keyboard, it is function the same as Ctrl key in Window in most cases. ...

In Linux, ls might be one of the most frequently used commands. It is used to list files in a specific directory. In most cases, we may just use ls -l to list the files under a directory. But have you explored other usages of this command. In this post, we will summarise some other common usages of ls commandAssuming we have below directory structure in our system, let's see them using tree command.List details of the filesIf we want to list the details of the files in /home/alvin/test_dir, we can funls -lR /home/alvin/test_dir/Output:[alvin@VM_0_16_centos test_dir]$ ls -lR...

Lots of people would think what the address 127.0.0.1 is when first seeing this address. In fact, 127.0.0.1 is a loopback address which refers to the local machine. It is generally used for local testing. When typing ping 127.0.0.1 on local command console, it will send network packets to local IP/TCP layer to test whether IP/TCP works properly or not. To those who are used to use localhost, it is actually mapped to 127.0.0.1 by default. There are hosts files in the system which store this mapping. Hence normally these two can be interchanged.# localhost name resolution is handled within ...