events block http block server block listen directive server_name root directive index directive include directive

prefix location exact location = regex location ~ case-insensitive regex ~* ^~ precedence try_files named location internal location

proxy_pass proxy_set_header Host X-Forwarded-For proxy_http_version WebSocket Upgrade headers proxy_connect_timeout proxy_read_timeout upstream block

expires directive Cache-Control header gzip compression sendfile open_file_cache immutable assets error_page autoindex

ssl_certificate ssl_certificate_key TLS protocol selection HSTS header security headers client_max_body_size limit_req rate limiting limit_conn

nginx -t config test reload without downtime access_log error_log levels custom log_format stub_status map directive health-check endpoint