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WireGuard is a communication protocol and free and open-source software that implements encrypted virtual private networks (VPNs). [5] It aims to be lighter and better performing than IPsec and OpenVPN , two common tunneling protocols . [ 6 ]
You might use the following back-to-back edit summaries when doing this operation: 1) Fixing ping; 2) Completing ping fix. Alternatively, for high-traffic pages subject to edit conflicts: copy and then paste the existing section header below the thread → add the person's linked username followed by your signature below the duplicated section ...
Path MTU Discovery (PMTUD) is a standardized technique in computer networking for determining the maximum transmission unit (MTU) size on the network path between two Internet Protocol (IP) hosts, usually with the goal of avoiding IP fragmentation.
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
After the opening handshake, the client and server can, at any time, send messages to each other, such as data messages (text or binary) and control messages (close, ping, pong). A message is composed of one or more frames. Fragmentation allows a message to be split into two or more frames. It enables sending messages with initial data ...
In computing, a handshake is a signal between two devices or programs, used to, e.g., authenticate, coordinate. An example is the handshaking between a hypervisor and an application in a guest virtual machine .
A ping of death is a type of attack on a computer system that involves sending a malformed or otherwise malicious ping to a computer. [1] In this attack, a host sends hundreds of ping requests with a packet size that is large or illegal to another host to try to take it offline or to keep it preoccupied responding with ICMP Echo replies. [2]
TCP is a connection-oriented protocol [4] and sessions are established with a three-way handshake using SYN packets and ended by sending a FIN notification. [5] The firewall can use these unique connection identifiers to know when to remove a session from the state table without waiting for a timeout.