Tag network

Domain Name System

This post explains briefly what is a domain name system (DNS). FAQs about a Domain Name System What is a Domain Name System (DNS)? A domain name system (DNS) is a hierarchical and distributed naming system for computers, services, and…

List of VPN Protocols

This post summarizes the most common VPN (Virtual Private Network) protocols. VPN protocol VPN (Virtual Private Network) protocols: PPTP L2TP SSH OpenVPN IPsec SSTP IKEv2 PPTP Point to Point Tunneling Protocol (PPTP). L2TP Layer Two Tunneling Protocol (L2TP) is an…

IPv6

IPv6 was developed to substitute IPv4, as it was expected to run out of addresses. IPv6 Address An IPv6 uses 128 bits. While IPV4 is represented by decimal numbers, IPv6 uses hexadecimal numbers. There are 8 blocks of hexadecimal numbers,…

IPv4

IPv4 Address An IPv4 address represent a single device in an IP network. IPv4 addresses consist of 32 bits. Example: 11000110001100110110010000000000 These 32 bits are usually divided in 4 octets, and separated with a dot. Example: 11000110.00110011.01100100.00000000 In order to…