Tor Browser and Legality
For most people reading this article, Tor Browser is completely legal to use.
In some countries, however, Tor is either illegal or blocked by national authorities.
China has outlawed the anonymity service and blocks Tor traffic from crossing the Great Firewall.
Dark Web Creation and Usage
The dark web was actually created by the US government to allow spies to exchange information completely anonymously.
US military researchers developed the technology, known as Tor (The Onion Router) in the mid-1990s and released it into the public domain for everyone to use.
Web Development Layers
The Three Layers of Web Design
- HTML: The Structure Layer
- CSS: The Styles Layer
- JavaScript: The Behavior Layer
Style Sheet Standards
Latest Standard in Style Sheet
- CSS Filename extension .css
- Initial release
- Latest release CSS 2.1 : Level 2 Revision 1
- Type of format Style sheet language
- Container for Style rules for HTML elements (tags)
Network Tunneling
What is Network Tunneling?
Tunneling is the process by which VPN packets reach their intended destination, which is typically a private network.
Many VPNs use the IPsec protocol suite.
IPsec is a group of protocols that run directly on top of IP at the network layer.
Another protocol in common use for VPNs is Transport Layer Security (TLS).
Computer Network Topology
What is Computer Topology?
In networking, topology refers to the layout of a computer network.
Physical topology means the placement of the elements of the network, including the location of the devices or the layout of the cables.
Logical topology maps the flow of data, regardless of the physical layout.
Layer 5 to Layer 1 PDU
Layer 5 to Layer 1 PDU
PDU is a significant term related to the initial four layers of the OSI model.
In Layer 1, PDU is a bit, in Layer 2 it is a frame, in Layer 3 it is a packet and in Layer 4 it is a segment.
In Layer 5 and above, PDU is referred to as data.