nginx 1.17.9-0ubuntu2 source package in Ubuntu

 The nginx_http_auth_pam module enables authentication using PAM.
 .
 The module uses PAM as a backend for simple http authentication. It
 also allows setting the pam service name to allow more fine grained control.

 Cache Purge module adds purging capabilities to Nginx. It allows purging
 content from caches used by all of Nginx proxy modules, like FastCGI, Proxy,
 SCGI and uWSGI.

 WebDAV Ext module complements the Nginx WebDAV module to provide a full
 WebDAV support.
 .
 WebDAV Ext provides the missing PROPFIND & OPTIONS methods.

 Echo module wraps lots of Nginx internal APIs for streaming input and output,
 parallel/sequential subrequests, timers and sleeping, as well as various meta
 data accessing.
 .
 Basically it provides various utilities that help testing and debugging of
 other modules by trivially emulating different kinds of faked subrequest
 locations.
 .
 People will also find it useful in real-world applications that need to:
 .
 1. Serve static contents directly from memory.
 2. Wrap the upstream response with custom header and footer (kinda like the
    addition module but with contents read directly from the config file and
    Nginx variables).
 3. Merge contents of various "Nginx locations" (i.e., subrequests) together in
    a single main request (using echo_location and its friends).

 The Fancy Index module makes possible the generation of file listings, like
 the built-in autoindex module does, but adding a touch of style by introducing
 ways to customize the result.

 The ngx_http_geoip module creates variables with values depending on the
 client IP address, using the precompiled MaxMind databases.
 .
 Those variables include country, region, city, latitude, longitude, postal
 code, etc.

 The ngx_http_geoip2 module is a third-party plugin which creates variables
 with values from the maxmind geoip2 databases based on the client IP
 (default) or from a specific variable (supports both IPv4 and IPv6).

 The Headers More module allows you to add, set, or clear any output or input
 header that you specify.
 .
 This is an enhanced version of the standard headers module because it provides
 more utilities like resetting or clearing "builtin headers" like Content-Type,
 Content-Length, and Server.

 The ngx_http_image_filter module is a filter that transforms images in JPEG,
 GIF, and PNG formats.
 .
 The module supports filters such as rotate, resize, crop, quality, sharpening,
 interlacing and more.

 Embed Lua runtime into nginx.
 .
 This module embeds Lua, via the standard Lua 5.1 interpreter or LuaJIT
 2.0/2.1, into Nginx and by leveraging Nginx's subrequests, allows the
 integration of the powerful Lua threads (Lua coroutines) into the Nginx event
 model.

 The NDK is an Nginx module that is designed to extend the core functionality of
 the excellent Nginx webserver in a way that can be used as a basis of other
 Nginx modules.
 .
 It has functions and macros to deal with generic tasks that don't currently
 have generic code as part of the core distribution. The NDK itself adds few
 features that are seen from a user's point of view - it's just designed to help
 reduce the code that Nginx module developers need to write.

 Embed Perl runtime into nginx.
 .
 The ngx_http_perl module is used to implement location and variable handlers
 in Perl and insert Perl calls into SSI.
 .
 Note that this module is marked experimental.

 Subsitution Nginx module can do both regular expression and fixed string
 substitutions on response bodies. The module is quite different from Nginx's
 native Substitution module. It scans the output chains buffer and
 matches string line by line, just like Apache's mod_substitute.

 Upload progress module is an implementation of an upload progress system, that
 monitors RFC1867 POST uploads as they are transmitted to upstream servers.
 .
 It works by tracking the uploads proxied by Nginx to upstream servers without
 analysing the uploaded content and offers a web API to report upload progress
 in Javscript, Json or any other format.

 The Nginx fair proxy balancer enhances the standard round-robin load balancer
 provided with Nginx so that it tracks busy backend servers and adjusts
 balancing accordingly.

 The ngx_http_xslt_filter module is a filter that transforms XML responses
 using one or more XSLT stylesheets.
 .
 The transformation can be adjusted by setting the relevant configuration
 parameters.

 The nginx_mail module adds mail proxy support to nginx.
 .
 The module supports proxying all the standard mail protocols such as IMAP,
 POP3 & SMTP.

 Nchan is a scalable, flexible pub/sub server for the modern web, It can be
 configured as a standalone server, or as a shim between your application and
 tens, thousands, or millions of live subscribers. It can buffer messages in
 memory, on-disk, or via Redis. All connections are handled asynchronously and
 distributed among any number of worker processes. It can also scale to many
 nginx server instances with Redis.
 .
 Full documentation available at https://nchan.slact.net

 The nginx RTMP module is a fully-featured streaming solution implemented in
 nginx.
 .
 It provides the following features:
  - Live streaming with RTMP, HLS and MPEG-DASH;
  - RTMP Video on Demand from local or HTTP sources;
  - Stream relay support via a push or pull model;
  - Integrated stream recording;
  - and more.

 The nginx_stream module adds stream proxy support to nginx.
 .
 Stream module supports loadbalancing & proxying to TCP servers. The module
 also supports ACLs/connection limiting and configuring multiple operational
 parameters.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This is a dependency package to install either nginx-full (by default),
 nginx-light or nginx-extras.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This package contains base configuration files used by all versions of
 nginx.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This package provides a version of nginx identical to that of nginx-full,
 but without any third-party modules, and only modules in the original
 nginx code base.
 .
 STANDARD HTTP MODULES: Core, Access, Auth Basic, Auto Index, Browser, Empty
 GIF, FastCGI, Geo, Limit Connections, Limit Requests, Map, Memcached, Proxy,
 Referer, Rewrite, SCGI, Split Clients, UWSGI.
 .
 OPTIONAL HTTP MODULES: Addition, Auth Request, Charset, WebDAV, Gunzip,
 Gzip, Gzip Precompression, Headers, HTTP/2, Image Filter, Index, Log, Real IP,
 Slice, SSI, SSL, Stream, Stub Status, Substitution, Thread Pool, Upstream,
 User ID, XSLT.
 .
 MAIL MODULES: Mail Core, Auth HTTP, Proxy, SSL, IMAP, POP3, SMTP.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This package provides extra documentation to help unleash the power of Nginx.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This package provides a version of nginx with the standard modules, plus
 extra features and modules such as the Perl module, which allows the
 addition of Perl in configuration files.
 .
 STANDARD HTTP MODULES: Core, Access, Auth Basic, Auto Index, Browser, Empty
 GIF, FastCGI, Geo, Limit Connections, Limit Requests, Map, Memcached, Proxy,
 Referer, Rewrite, SCGI, Split Clients, UWSGI.
 .
 OPTIONAL HTTP MODULES: Addition, Auth Request, Charset, WebDAV, FLV, GeoIP,
 Gunzip, Gzip, Gzip Precompression, Headers, HTTP/2, Image Filter, Index, Log,
 MP4, Embedded Perl, Random Index, Real IP, Slice, Secure Link, SSI, SSL,
 Stream, SSL Preread, Stub Status, Substitution, Thread Pool, Upstream,
 User ID, XSLT.
 .
 MAIL MODULES: Mail Core, Auth HTTP, Proxy, SSL, IMAP, POP3, SMTP.
 .
 THIRD PARTY MODULES: Auth PAM, Cache Purge, DAV Ext, Echo, Fancy Index,
 Headers More, Embedded Lua, GeoIP2, HTTP Substitutions, Nchan, Upload
 Progress, Upstream Fair Queue.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This package provides a version of nginx with the complete set of
 standard modules included (but omitting some of those included in
 nginx-extra).
 .
 STANDARD HTTP MODULES: Core, Access, Auth Basic, Auto Index, Browser, Empty
 GIF, FastCGI, Geo, Limit Connections, Limit Requests, Map, Memcached, Proxy,
 Referer, Rewrite, SCGI, Split Clients, UWSGI.
 .
 OPTIONAL HTTP MODULES: Addition, Auth Request, Charset, WebDAV, GeoIP, Gunzip,
 Gzip, Gzip Precompression, Headers, HTTP/2, Image Filter, Index, Log, Real IP,
 Slice, SSI, SSL, Stream, SSL Preread, Stub Status, Substitution, Thread Pool,
 Upstream, User ID, XSLT.
 .
 MAIL MODULES: Mail Core, Auth HTTP, Proxy, SSL, IMAP, POP3, SMTP.
 .
 THIRD PARTY MODULES: Auth PAM, DAV Ext, Echo, GeoIP2, HTTP Substitutions,
 Upstream Fair Queue.

 Nginx ("engine X") is a high-performance web and reverse proxy server
 created by Igor Sysoev. It can be used both as a standalone web server
 and as a proxy to reduce the load on back-end HTTP or mail servers.
 .
 This package provides a very light version of nginx with only the
 minimal set of features and modules.
 .
 STANDARD HTTP MODULES: Core, Access, Auth Basic, Auto Index, Empty GIF,
 FastCGI, Map, Proxy, Rewrite, SCGI, uWSGI.
 .
 OPTIONAL HTTP MODULES: Auth Request, Charset, Gzip, Gzip Precompression,
 Headers, HTTP/2, Index, Log, Real IP, Slice, SSI, SSL, Stub Status, Thread
 Pool, WebDAV, Upstream.
 .
 THIRD PARTY MODULES: Echo.