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Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).
Computer network engineering is a technology discipline within engineering that deals with the design, implementation, and management of computer networks.These systems contain both physical components, such as routers, switches, cables, and some logical elements, such as protocols and network services.
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For example, the organizations could establish a virtual private network (VPN) to encrypt communications between their mail servers. [17] Unlike methods that only encrypt a message body, a VPN can encrypt all communication over the connection, including email header information such as senders, recipients, and subjects.
Kaspersky Lab ranks fourth in the global ranking of antivirus vendors by revenue. [7] It was the first Russian company to be included into the rating of the world's leading software companies, called the Software Top 100 (79th on the list, as of June 29, 2012). Kaspersky Lab is ranked 4th in Endpoint Security segment according to IDC data for ...
The persist timer is used to protect TCP from a deadlock situation that could arise if a subsequent window size update from the receiver is lost, and the sender cannot send more data until receiving a new window size update from the receiver. When the persist timer expires, the TCP sender attempts recovery by sending a small packet so that the ...