These days most websites uses Cloudflare for there protecting against DOS or DDOS attacks. Cloudflare is free and easy to setup. Cloudflare conceals the IP address of the website in order to protect it from attack.
$WINDOWS.~BT or $WINDOWS.~WS folder are created usually in the root of Windows installation drive when windows 10 is upgraded. This folder contains a backup of last version of Windows.
7zip is a free file archiving and file compression / decompression utility. 7zip is a free open source better alternative to both WinRAR and WinZip. It currently support over 45 formats.
File upload is trivial to any web application. Prior to Java Servlet specification 3.0 upload to server required Apache Commons. Now its just a matter of writing a just any other file.
Enhance your user's reading experience on your website by highlighting only the portion of text user selected. Fokus is a simple script that do this simple job in less than 3KB of code.