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by Usama Dar
Nginx Module Extension
Nginx Module Extension
Table of Contents
Credits
About the Author
About the Reviewer
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Errata
Piracy
Questions
Installing source distribution
Nginx library dependencies
Configuring options
Files and permissions
The Event loop
Optional modules
Compilation controls
Example
The Custom module
Debugging
Installing on other platforms
Verifying your Nginx installation
Summary
2. Configuring Core Modules
Understanding the Main module
Explaining directives
daemon
master_process
timer_resolution
pid
lock_file
worker_processes
debug_points
user
worker_priority
worker_cpu_affinity
worker_rlimit_nofile
worker_rlimit_core
worker_rlimit_sigpending
working_directory
env
Summary
3. Installing and Configuring HTTP Modules
Standard HTTP modules
The core module (HttpCoreModule)
Explaining directives
server
server_name
listen
SSL
default_server
location
server_names_hash_bucket_size
server_names_hash_max_size
tcp_nodelay/tcp_nopush
sendfile
sendfile_max_chunk
root
resolver/resolver_timeout
aio
alias
error_page
keepalive_disable, keepalive_timeout, and keepalive_requests
Controlling access (HttpAccessModule)
Authenticating users (HttpBasicAuthModule)
Explaining directives
auth_basic
auth_basic_user_file
Load balancing (HttpUpstreamModule)
Explaining directives
ip_hash
server
upstream
Acting as a proxy (HttpProxyModule)
Explaining directives
proxy_pass
proxy_pass_header
proxy_connect_timeout
proxy_next_upstream
proxy_redirect
proxy_set_header
proxy_store
proxy_cache
Compressing content (HttpGzipModule)
Explaining directives
gzip
gzip_buffers
gzip_comp_level
gzip_disable
gzip_http_version
gzip_min_length
gzip_proxied
gzip_types
Controlling logging (HttpLogModule)
Explaining directives
access_log
log_format
Setting response headers (HttpHeadersModule)
Explaining directives
add_header
expires
Rewriting requests (HttpRewriteModule)
Explaining directives
break
if
return
rewrite
rewrite_log
set
uninitialized_variable_warn
Interacting with FastCGI (HttpFastcgiModule)
Simple caching (HttpMemcachedModule)
Explaining directives
memcached_pass
memcached_connect_timeout
memcached_read_timeout
memcached_send_timeout
memcached_buffer_size
memcached_next_upstream
Limiting requests (HttpLimitReqModule)
Explaining directives
limit_req
limit_req_log_level
limit_req_zone
Limiting connections (HttpLimitConnModule)
Explaining directives
limit_conn
limit_conn_zone
limit_conn_log_level
limit_conn_status
Summary
4. Installing Third-party Modules
Compiling third-party modules
Communicating with PostgreSQL (ngx_postgres)
Explaining directives
postgres_server
postgres_keepalive
postgres_pass
postgres_query
postgres_rewrite
postgres_output
postgres_set
postgres_escape
postgres_connect_timeout
postgres_result_timeout
Communicating with MySQL and drizzle (drizzle-nginx)
Explaining directives
drizzle_server
drizzle_keepalive
drizzle_query
drizzle_pass
drizzle_connect_timeout
drizzle_send_query_timeout
drizzle_recv_cols_timeout
drizzle_recv_rows_timeout
drizzle_buffer_size
drizzle_module_header
Digest Authentication (ngx_http_auth_digest)
Explaining directives
auth_digest
auth_digest_user_file
auth_digest_timeout
auth_digest_expires
auth_digest_replays
auth_digest_shm_size
Speeding up web pages (ngx_pagespeed)
Configuring handlers
Lua scripting (ngx_lua)
Explaining directives
lua_package_path
set_by_lua or set_by_lua_file
content_by_lua or content_by_lua_file
rewrite_by_lua or rewrite_by_lua_file
access_by_lua or access_by_lua_file
Reverse IP lookup using the GeoIP module (ngx_http_geoip_module)
Explaining directives
geoip_country
geoip_city
geoip_org
geoip_proxy
geoip_proxy_recursive
Doing healthchecks
ngx_http_healthcheck_module
Explaining directives
healthcheck_enabled
healthcheck_delay
healthcheck_timeout
healthcheck_failcount
healthcheck_send
healthcheck_expected
healthcheck_buffer
Load balancing
Consistent hashing
Least busy
Configuration variable hashing
Summary
5. Creating Your Own Module
Nginx module delegation
Handlers
Load balancers
Filters
Order of execution
The extended "Hello world" module
Writing and compiling a module
The "Hello world" source code
Components of the Nginx module
Module configuration structures
Module directives
The module context
create_loc_conf
merge_loc_conf
The module definition
The handler function
Summary
Index
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