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406 Not Acceptable The requested resource is capable of generating only content not acceptable according to the Accept headers sent in the request. See Content negotiation. 407 Proxy Authentication Required The client must first authenticate itself with the proxy. 408 Request Timeout The server timed out waiting for the request.
406 Not Acceptable: The HTCPCP server is unable to provide the requested addition for some reason; the response should indicate a list of available additions. The RFC observes, "In practice, most automated coffee pots cannot currently provide additions." 408 Request Timeout: The HTCPCP server is unable to make tea for a timeout and forbidden ...
Official port is 1812. TCP port 1645 must not be used for RADIUS. [150] 1646: No: Unofficial: Old radacct port, [when?] RADIUS accounting protocol. Enabled for compatibility reasons by default on Cisco [citation needed] and Juniper Networks RADIUS servers. [149] Official port is 1813. TCP port 1646 must not be used for RADIUS. [150] 1666 ...
488 Not Acceptable Here Some aspect of the session description or the Request-URI is not acceptable. [1]: §21.4.26 489 Bad Event The server did not understand an event package specified in an Event header field. [4]: §7.3.2 [6]: §8.3.2 491 Request Pending Server has some pending request from the same dialog. [1]: §21.4.27
The OpenResty architecture is based on several nginx modules which have been extended in order to expand nginx into a web app server to handle large number of requests. [4] OpenResty aims to run Lua server-side applications completely in the Nginx server, leveraging its event model to do non-blocking I/O not only for client connections, but ...
An ephemeral port is a communications endpoint of a transport layer protocol of the Internet protocol suite that is used for only a short period of time for the duration of a communication session. Such short-lived ports are allocated automatically within a predefined range of port numbers by the IP stack software of a computer operating system.
Port forwarding via NAT router. In computer networking, port forwarding or port mapping is an application of network address translation (NAT) that redirects a communication request from one address and port number combination to another while the packets are traversing a network gateway, such as a router or firewall.
Some port scanners scan only the most common port numbers, or ports most commonly associated with vulnerable services, on a given host. See: List of TCP and UDP port numbers. The result of a scan on a port is usually generalized into one of three categories: Open or Accepted: The host sent a reply indicating that a service is listening on the port.