VirtualBox: 64-bit Guest OS

While playing with Vagrant, VirtualBox, and MongoDB on my old ASUS ROG Generation 1 - which has Intel Q720 CPU and runs Windows 10 64-bit - I ran into this error.

VT-x is not available(VERR_VMX_NO_VMX).

VirtualBox error: Intel VT-x is not available

Also, VirtualBox list only 32-bit version for guest OS.

It is so weird because I can installed Ubuntu 64-bit as guest OS in VirtualBox while booting this laptop in Windows 7 64-bit.

I tried removing Hyper-V feature and reboot.

VirtualBox now display 64-bit version of guest OSes.

And Vagrant works too.

Linux command: ss - socket statistics

ss is another utility to investigate sockets. It can display more TCP and state information than other tools.

Powershell Core - pwsh

PowerShell Core is a cross-platform (Windows, Linux, and macOS) automation and configuration tool/framework that works well with your existing tools and is optimized for dealing with structured data (e.g. JSON, CSV, XML, etc.), REST APIs, and object models.

Entity Framework Core: Notes

Entity Framework is [WHAT] an object-relational mapper [WHY] enabling .NET developer to work with relational data using domain-specific object.

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