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The client's session has expired and must log in again. [43] 449 Retry With The server cannot honour the request because the user has not provided the required information. [44] 451 Redirect Used in Exchange ActiveSync when either a more efficient server is available or the server cannot access the users' mailbox. [45]
Indicates that the destination was temporarily unavailable, so the server has queued the call until the destination is available. A server may send multiple 182 responses to update progress of the queue. [1]: §21.1.4 183 Session Progress This response may be used to send extra information for a call which is still being set up. [1]: §21.1.5
In computer science and networking in particular, a session is a time-delimited two-way link, a practical (relatively high) layer in the TCP/IP protocol enabling interactive expression and information exchange between two or more communication devices or ends – be they computers, automated systems, or live active users (see login session).
Locking a session ID to the client's IP address is a simple and effective measure as long as the attacker cannot connect to the server from the same address, but can conversely cause problems for a client if the client has multiple routes to the server (e.g. redundant internet connections) and the client's IP address undergoes Network Address ...
In computer science, session hijacking, sometimes also known as cookie hijacking, is the exploitation of a valid computer session—sometimes also called a session key—to gain unauthorized access to information or services in a computer system. In particular, it is used to refer to the theft of a magic cookie used to authenticate a user to a ...
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The Session Description Protocol (SDP) is a format for describing multimedia communication sessions for the purposes of announcement and invitation. [1] Its predominant use is in support of streaming media applications, such as voice over IP (VoIP) and video conferencing.
Since its formation as a paid department, the District of Columbia Fire and EMS Department has entered 100 names on its Roll of Honor, including two individuals who were not paid members, Benjamin C. Greenup (representing the volunteers who died prior to the formation of the paid department, and William W. Hoake, a Civil Defense Auxiliary firefighter who was assigned to Engine 31 during World ...