Syntax: ssl_protocols [SSLv2] [SSLv3] [TLSv1] [TLSv1.1] [TLSv1

Syntax: open_log_file_cache max=N [inactive=time] [min_uses

Syntax: slice size; Default: slice 0;

Syntax: addition_types mime-type ...; Default: addition_types text/html;

Syntax: uninitialized_variable_warn on | off; Default: uni

Syntax: xslt_last_modified on | off; Default: xslt_last_modified

Syntax: listen address:port [ssl] [udp] [proxy_protocol]

Syntax: ssl_prefer_server_ciphers on | off; Default: ssl_p

Syntax: imap_auth method ...; Default: imap_auth plain;

Syntax: http2_max_requests number; Default: http2_max_requests 1000;