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HAProxy was written in 2000 [13] by Willy Tarreau, [14] a core contributor to the Linux kernel, [15] who still maintains the project. In 2013, the company HAProxy Technologies, LLC was created. [ citation needed ] The company provides a commercial offering, HAProxy Enterprise and appliance-based application-delivery controllers named ALOHA.
Incoming HTTPS traffic gets decrypted and forwarded to a web service in the private network. A TLS termination proxy (or SSL termination proxy, [1] or SSL offloading [2]) is a proxy server that acts as an intermediary point between client and server applications, and is used to terminate and/or establish TLS (or DTLS) tunnels by decrypting and/or encrypting communications.
Server Name Indication (SNI) is an extension to the Transport Layer Security (TLS) computer networking protocol by which a client indicates which hostname it is attempting to connect to at the start of the handshaking process. [1]
Authenticates users via HTTP Basic Authentication, the backend mechanism for verifying user authentication is left to configurable providers, usually other Apache modules. This module replaces the authentication frontend of several older modules. [7] mod_auth_digest: Versions 1.3.8 and newer: Stable Extension: Apache Software Foundation
The general format of the field is: [2] X-Forwarded-For: client, proxy1, proxy2 where the value is a comma+space separated list of IP addresses, the left-most being the original client, and each successive proxy that passed the request adding the IP address where it received the request from.
Example scenario: A client on the Internet (cloud on the left) makes a request to a reverse proxy server (red oval in the middle).The proxy inspects the request, determines that it is valid and that it does not have the requested resource in its own cache.
The HAProxy load balancer added experimental support for QUIC in March 2022 [60] and declared it production-ready in March 2023. [61] As of April 2023, 8.9% of all websites use QUIC, [62] up from 5% in March 2021. Microsoft Windows Server 2022 supports both HTTP/3 [63] and SMB over QUIC [64] [10] protocols via MsQuic.
The Name Service Switch (NSS) is an interface of glibc that connects a computer with a variety of sources of common configuration databases and name resolution mechanisms. [1] These sources include local operating system files (such as /etc/passwd , /etc/group , and /etc/hosts ), the Domain Name System (DNS), the Network Information Service ...