Logging to syslog
记录到syslog
The
error_log
and
access_log
directives support logging to syslog.
The following parameters configure logging to syslog:
error_log和access_log指令支持向syslog发送日志。以下参数用于配置向syslog发送日志：
server=address-
Defines the address of a syslog server.
The address can be specified as a domain name or IP address,
with an optional port, or as a UNIX-domain socket path
specified after the “
unix:” prefix.
If port is not specified, the UDP port 514 is used.
If a domain name resolves to several IP addresses, the first resolved
address is used.
用于定义syslog服务器地址。该地址可指定为域名或IP地址，并可选择端口，也可用"unix:"指定UNIX域套接字路径。如果未指定端口，则使用UDP的514端口。如果域名解析到多个IP地址，则使用第一个解析到的地址。
facility=string-
Sets facility of syslog messages, as defined in
RFC 3164.
Facility can be one of “
kern”, “user”,
“mail”, “daemon”,
“auth”, “intern”,
“lpr”, “news”, “uucp”,
“clock”, “authpriv”,
“ftp”, “ntp”, “audit”,
“alert”, “cron”,
“local0”..“local7”.
Default is “local7”.
RFC 3164定义了syslog的消息设备。设备可以是“kern”, “user”,“mail”, “daemon”,
“auth”, “intern”,
“lpr”, “news”, “uucp”,
“clock”, “authpriv”,
“ftp”, “ntp”, “audit”,
“alert”, “cron”,
“local0”..“local7”.
Default is “local7”
severity=string-
Sets severity of syslog messages for
access_log,
as defined in
RFC 3164.
Possible values are the same as for the second parameter (level) of the
error_log directive.
Default is “
info”.
根据RFC 3164的定义，设置access_log系统日志信息的严重程度。其值与error_log指令的第二个参数（级别）相同。默认值为"info"。
Severity of error messages is determined by nginx, thus the parameter
is ignored in the error_log directive.
错误信息的严重程度由nginx决定，因此在error_log指令中忽略了该参数。
tag=string-
Sets the tag of syslog messages.
Default is “
nginx”.
设置syslog消息的标记。默认为"nginx"。
nohostname-
Disables adding the “hostname” field into the syslog message header (1.9.7).
禁止在系统日志报文头中添加"hostname"字段(nginx版本1.9.7开始支持)
Example syslog configuration:
系统日志配置示例
error_log syslog:server=192.168.1.1 debug;
access_log syslog:server=unix:/var/log/nginx.sock,nohostname;
access_log syslog:server=[2001:db8::1]:12345,facility=local7,tag=nginx,severity=info combined;
Logging to syslog is available since version 1.7.1.
As part of our
commercial subscription
logging to syslog is available since version 1.5.3.
自1.7.1版起可向syslog发送日志。作为商业订阅的一部分，从1.5.3版起即可向syslog发送日志。