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Monday, March 31, 2025

install a free OPenVPN server on AWS cloud for free for one year

 Yes, Free OPenVPN is free for 2 connections

You can follow a good Youtube video to do the install

initially in AWS, it will show 0.023 charge for t.small

that's ok

click subscribe

then you choose instance t2.micro which is free for free tier

then there is a problem with elastic IP which is not free

in my case, after a shutdown or reboot / restart of the VM, the public IP may change

so I need modify the network public IP in the openvpn to match the actual public IP

on the client side, remove the old profile, import the new one

when It fails , please check the log file

android openvpn client connection log is a bonus



Saturday, March 29, 2025

What is a normal BMI?

The BMI is calculated by dividing an adult's weight in kilograms by their height in metres squared.

he Body Mass Index (BMI) formula is calculated by dividing weight in kilograms (kg) by height in meters squared (m²),

  • Metric Units: BMI = weight (kg) / [height (m)]² 


 A normal Body Mass Index (BMI), which indicates a healthy weight for height, is generally considered to be between 18.5 and 24.9. 

Here's a more detailed breakdown: 
  • Underweight: BMI below 18.5
  • Healthy Weight: BMI between 18.5 and 24.9
  • Overweight: BMI between 25 and 29.9
  • Obese: BMI of 30 or higher

Friday, March 28, 2025

OpenSSH client Windows 11

 

per Google

To enable and use the OpenSSH client on Windows 11, go to Settings > Apps > Optional features, then add the "OpenSSH Client" featureOnce installed, you can access the client through the command prompt or PowerShell and use commands like ssh to connect to remote servers. 

Here's a more detailed guide:
1. Install the OpenSSH Client:
  • Open Settings: Click the Start button and select "Settings".
  • Navigate to Optional Features: Go to "Apps" > "Optional features".
  • Add a Feature: Click "Add a feature".
  • Search for OpenSSH Client: Search for and select "OpenSSH Client".
  • Install: Click "Install" to add the feature.
  • Check Installation: Verify that "OpenSSH Client" is listed under "Installed features". 
2. Accessing the OpenSSH Client:
  • Open Command Prompt or PowerShell as Administrator:
    Search for "cmd" or "powershell" in the Start menu, right-click, and select "Run as administrator".
  • Use SSH Command:
    You can now use the ssh command to connect to remote servers. For example: ssh username@server_address.
  • Consider Port:
    If the SSH server is not on the default port 22, you can specify the port with the -p option: ssh -p <port_number> username@server_address.
  • First Connection:
    On the first connection, you'll be prompted to confirm the host key fingerprint with "yes" and then enter the password. 

who is the owner of wireguard vpn ?

 WireGuard, a VPN protocol, was created by Jason A. Donenfeld, a security researcher and developer. 

create an AWS free account

 well , I created one before , 

I have to use a different email address to create a new Free account

still need a credit card to register

now I am in AWS again

phew ...,.


Thursday, March 27, 2025

is wd mybook essential external hard drive encrypted ?

 Yes, WD My Book Essential external hard drives typically come with hardware encryption enabled by default, using 256-bit AES encryption, which cannot be disabled


WinSAT evaluates various system components, including the CPU, RAM, storage drives (HDDs and SSDs), and graphics performance. ~~~ per Petri

 

Running WinSAT from the Command Line

As WinSAT is present on your Windows computer as a command line tool, rather than via the Control Panel, you need to open Terminal to get started. As the tool evaluates a various system components, it’s important to run Windows Terminal as Administrator. 

  • Open an Elevated Terminal (or command prompt):
    • Press Win + S, type cmd, and select Run as administrator.
  • Run a Formal Assessment:
    • Run the following command to perform a full system benchmark:
      winsat formal

-- per Petri