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Are TCP socket connections secure?
SSL/TLS protocol makes TCP a secure protocol, and whenever an application needs to send sensitive information over the internet, it is a requirement to use the send over SSL. often times the SSL protocol is used to secure — the application network layer — HTTP protocol.
How do TCP sockets work?
Sockets are commonly used for client and server interaction. In a connection-oriented client-to-server model, the socket on the server process waits for requests from a client. To do this, the server first establishes (binds) an address that clients can use to find the server.
Why does TCP need 2 sockets?
The reason is that TCP has two different kinds of state that you want to control, whereas UDP has only one. UDP, on the other hand, has no notion of “accepting connections”, so there is only one kind of state, and that is the set of buffered sent and/or received packets (regardless of their source and/or destination).
Can two sockets use the same port?
A connected socket is assigned to a new (dedicated) port, so it means that the number of concurrent connections is limited by the number of ports, unless multiple sockets can share the same port.
How is the Transmission Control Protocol ( TCP ) reliable?
TCP is a reliable stream delivery service which guarantees that all bytes received will be identical and in the same order as those sent. Since packet transfer by many networks is not reliable, TCP achieves this using a technique known as positive acknowledgement with re-transmission.
Which is TCP flag used to make sure the receiving end knows how to?
TCP is used extensively by many internet applications, including the World Wide Web (WWW), email, File Transfer Protocol, Secure Shell, peer-to-peer file sharing, and streaming media.
How is the local end point of a TCP connection managed?
A TCP connection is managed by an operating system through a resource that represents the local end-point for communications, the Internet socket. During the lifetime of a TCP connection, the local end-point undergoes a series of state changes:
What’s the difference between a TCP packet and a segment?
The term TCP packet appears in both informal and formal usage, whereas in more precise terminology segment refers to the TCP protocol data unit (PDU), datagram to the IP PDU, and frame to the data link layer PDU: