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Input/output completion port (IOCP) is an API for performing multiple simultaneous asynchronous input/output operations in Windows NT versions 3.5 and later, [1] AIX [2] and on Solaris 10 and later. [3] An input/output completion port object is created and associated with a number of sockets or file handles.
The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large. [24] 451 Unavailable For Legal Reasons (RFC 7725) A server operator has received a legal demand to deny access to a resource or to a set of resources that includes the requested resource. [25]
A rule of thumb in determining if a reply fits into the 4xx or the 5xx (Permanent Negative) category is that replies are 4xx if the commands can be repeated without any change in command form or in properties of the User or Server (e.g., the command is spelled the same with the same arguments used; the user does not change his file access or ...
504 5.5.4 Unrecognized authentication type [3] 521 Server does not accept mail [5] 523 Encryption Needed [6] 530 5.7.0 Authentication required [3] 534 5.7.9 Authentication mechanism is too weak [3] 535 5.7.8 Authentication credentials invalid [3] 538 5.7.11 Encryption required for requested authentication mechanism [3]
The client connects to the server's socket via the server's address. The client process then writes a message for the server process to read. The application's algorithm may entail multiple read/write interactions. Upon completion of the algorithm, the client executes exit() [5] and the server executes close(). [6]
bind() is typically used on the server side, and associates a socket with a socket address structure, i.e. a specified local IP address and a port number. listen() is used on the server side, and causes a bound TCP socket to enter listening state. connect() is used on the client side, and assigns a free local port number to a socket. In case of ...