netwyman

URL  stands for Uniform Resource Locator. URL is the address of the website which you can find in the address bar of your web browser. It is a reference to a resource on the internet, be it images, hypertext pages, audio/video files, etc. Example : http://shrigujaratpustakalay.in/ What is DNS : DNS is short for Domain Name System. Like a phonebook, DNS maintains and maps the name of the website, i.e. URL, and particular IP address it links to. Every URL on the internet has a unique IP address which is of the computer which hosts the server of the website requested. Brief explanation about for what happens when we enter a URL : Browser checks cache for DNS entry to find the corresponding   IP address   of website. It looks for following cache. If not found in one, then continues checking to the next until found. Browser Cache Operating Systems Cache Router Cache ISP Cache If not found in cache, ISP’s (I...

Secure data traffic flow between vEdges, IPSEC is the mode of transport for data traffic to flow from one vEdge to another vEdge as overlay network. IPsec tunnels that run the Internet Key Exchange (IKE) protocol provide authentication and encryption to ensure secure packet transport. Internet Protocol Security is a secure network protocol suite that authenticates and encrypts the packets of data to provide secure encrypted communication between two computers over an Internet Protocol network. It is used in virtual private networks. Tunnel Redundancy: The interface is the IPsec tunnel interface in VPN 0. You can configure one or two IPsec tunnel interfaces. If you configure two, the first is the primary IPsec tunnel, and the second is the backup. With two interfaces, all packets are sent only to the primary tunnel. If that tunnel fails, all packets are then sent to the secondary tunnel. If the primary tunnel comes back up, all traffic is moved back to the primary IPsec tunnel...