# Copyright 1999-2018 Gentoo Foundation. # Distributed under the terms of the GNU General Public License v2 # This file contains descriptions of NGINX_MODULES_HTTP USE_EXPAND flags. # Keep it sorted. access - This module provides a simple host-based access control. addition - This module adds contents of other locations before and after the current location's content. auth_basic - This module protects your site or parts of it with username and password based on HTTP Basic Authentication. auth_ldap - LDAP module for nginx which supports authentication against multiple LDAP servers. auth_pam - This module provides authentication via PAM. auth_request - Module implementing client authorization based on the result of a subrequest. autoindex - This module provides automatic directory listings. brotli - This module allows for on-the-fly Brotli compression. browser - This module creates variables, the values of which depend on the request header "User-agent". cache_purge - External module adding ability to purge content from nginx's FastCGI and proxy caches. charset - This module can reencode data of one encoding into another. dav - This module adds the HTTP and WebDAV methods PUT, DELETE, MKCOL, COPY and MOVE. dav_ext - Add missing WebDAV methods PROPFIND & OPTIONS to the existing WebDAV module. degradation - Allows to return 204 or 444 code for some locations on low memory condition (reliable on FreeBSD only) echo - Brings shell-style goodies to Nginx config file. empty_gif - This module keeps a 1x1 transparent GIF in memory that can be served very quickly. fancyindex - This module makes possible the generation of file listings, like the built-in autoindex module does, but adding a touch of style. fastcgi - This module allows Nginx to interact with FastCGI processes and control what parameters are passed to the process. flv - This module provides the ability to seek within FLV (Flash) files using time-based offsets. geo - This module creates variables, whose values depend on the IP-address of the client. geoip - This module creates variables based on the IP-address of the client matched against the MaxMind GeoIP binary files. geoip2 - This module creates variables based on the IP-address of the client matched against the MaxMind GeoIP2 binary files. grpc - This module provides gRPC support. gunzip - Permits to decompress gzip'ed files on-the-fly for clients not supporting the gzip encoding method. gzip - This module allows for on-the-fly gzip compression. gzip_static - Before serving a file from disk to a gzip-enabled client, this module will look for a precompressed file in the same location. headers_more - Set and clear input and output headers image_filter - This module is a filter for transforming JPEG, GIF and PNG images. javascript - This module implements location and variable handlers in nginScript. limit_conn - This module makes it possible to limit the number of simultaneous connections for the assigned session limit_req - This module allows you to limit the number of requests for a given session. limit_conn - This module makes it possible to limit the number of simultaneous connections for the assigned session lua - Embed the power of Lua into nginx map - This module allows you to classify, or map a set of values into a different set of values and store the result in a variable. memc - An extended version of the standard memcached module that supports set, add, delete, and many more memcached commands. memcached - You can use this module to perform simple caching. metrics - Module to export various metrics in easy-parseable JSON. mirror - This module implements mirroring of an original request by creating background mirror subrequests. mogilefs - Enable support for MogileFS. mp4 - This module adds pseudo-streaming naxsi - An open source, high performance, low rules maintenance, Web Application Firewall module for Nginx. perl - This module makes it possible to execute Perl directly within Nginx and call Perl via SSI. proxy - This module makes it possible to transfer requests to another server. push_stream - Push Stream module, supporting EventSource, WebSocket, Long Polling, and Forever Iframe. random_index - Pick a random directory index from a directory. realip - This module allows to change the client's IP address to value from request header (e. g. X-Real-IP or X-Forwarded-For). referer - This module makes it possible to block access to the site with the incorrect values of line "Referer" in the request header. rewrite - This module makes it possible to change URI using regular expressions (PCRE), and to redirect and select configuration depending on variables. scgi - An implementation of the Simple Common Gateway Interface. secure_link - This module computes and checks request URLs for a required security token. security - Web application firewall and Intrusion Detection System. slice - A filter that splits a request into subrequests, each returning a certain range of response slowfs_cache - This module adds the ability to cache static files split_clients - This module provides A/B testing support. ssi - This module provides a filter which processes Server-Side Includes (SSI) in the input. spdy - This module provides an SPDY implementation. (Deprecated, use IUSE="http2" instead) sticky - Module to always forward clients to the same upstream server (via sticky cookies) stub_status - This module provides the ability to get some status from nginx. sub - This module can search and replace text in the nginx response. upload_progress - This module adds the ability to track POST upload progress via JSON API upstream_check - Add health check support for upstream servers. upstream_hash - This module provides the ability to distribute upstream requests based on hashed key value. upstream_ip_hash - This module provides the ability to distribute upstream requests based on the IP-address of the client. upstream_keepalive - Thiis module provides the ability to cache connections to upstream servers. upstream_least_conn - This module provides the ability to distribute upstream requests using load balancing methods. upstream_zone - This module makes it possible to define a shared memory zone that keeps the group's configuration and run-time state that are shared between worker processes. userid - This module gives out cookies for identification of clients. uwsgi - External module for the uWSGI protocol for python web apps. vhost_traffic_status - This module provides access to virtual host status information. xslt - This module is a filter which converts an XML response with the aid of one or more XSLT templates.