What is the GRE protocol? Generic Routing Encapsulation (GRE) protocol is a tunneling protocol that can encapsulate a number of OSI layer 3 protocols. This protocol can be used for point-to-point links, where two endpoints communicate with each other, and for...
OpenVPN is an open-source VPN software that uses a custom security protocol and SSL/TLS to secure data transmission. Data transferred through OpenVPN is also not restricted by NATs and firewalls. As a result, OpenVPN is one of the preferred VPN software. But how does...
We often use NAT and VPN in an organization to access the remote network. Let's understand how they work. What is NAT or Network Address Translation? Network Address Translation, or NAT, is a method by which IP addresses are mapped from one group to another. The...
What is the Point-to-Point Protocol? Point-to-Point Protocol or PPP is a layer 2 or data link layer protocol that is used to establish a direct connection between two nodes in a network. It can provide authentication, encryption, and compression. This protocol is used...
Elliptic Curve Cryptography, or ECC, is public-key cryptography that uses the properties of an elliptic curve over a finite field for encryption. ECC requires smaller keys than non-ECC cryptography to provide equivalent security. For example, a 256-bit ECC public key...
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