How do you edit Windows 'hosts' file in Windows 10?

 Windows 'hosts' file contains mappings of IP addresses to hostnames.

You can find the file in the Windows System32 folder if you run your DOS program with administrative privileges as shown.

You can open this file with Notepad also run with administrative privileges. There is another 'hosts' file related to iCalendar.

It is just a text file that you can edit and save with your changes.

More here:

https://hodentek.blogspot.com/2009/07/in-vista-home-premium-computer-name-is.html

You can also use the "Hostsman" application to edit the "hosts" file:

https://www.abelhadigital.com/hostsman/#downloads

Is there a DNA based vaccine for the COVID-19 virus and its variants?

 One more arrow at the heart of this Wuhan virus.

"BENGALURU, Aug 20 (Reuters) - India's drug regulator has granted emergency use approval for Zydus Cadila's COVID-19 vaccine, the world's first DNA shot against the coronavirus, in adults and children aged 12 years and above." - Reuters

This is the second homegrown vaccine ( Zycov-D  ) made by the generic drug maker Cadila Health Care of India. The first one, also approved is the Covaxin. It is a needle-free vaccine that does not need very low temperatures. The late-stage trial had 28000 participants with about 1000 in the lower age group (12 to 18).

https://www.zyduscadila.com/

More here:

https://www.bbc.co.uk/news/world-asia-india-57774294 

https://www.axios.com/india-first-dna-covid-vaccine-f07c5105-893c-473f-8c60-8b5aaef28e5a.html

https://www.reuters.com/business/healthcare-pharmaceuticals/india-approves-zydus-cadilas-covid-19-vaccine-emergency-use-2021-08-20/

How do you access Amazon Web Services Cloud Storage using a Python client?

 You can develop a client application using React with Python and access the AWS's S3 bucket via  Flask server.

Here are some relevant links that you may want to look up or quick tutorials to get the hang of it.

How to create a React+Flask Project?

https://blog.miguelgrinberg.com/post/how-to-create-a-react--flask-project

https://rajrajhans.com/2020/06/2-ways-to-upload-files-to-s3-in-flask/

Microsoft Visual Studio provides full support for almost any kind of project:

https://code.visualstudio.com/docs/python/tutorial-flask

https://code.visualstudio.com/docs/nodejs/reactjs-tutorial

https://aws.amazon.com/about-aws/whats-new/2020/07/amazon-s3-features-now-available-aws-toolkits-for-visual-studio-code/

You can get a link to download the latest community version(free) here:

https://hodentek.blogspot.com/2021/07/visual-studio-2022-preview-available.html