记录客户端真实IP
#Nginx示例
#Nginx示例
log_format upstream '$time_iso8601 $http_x_forwarded_for $host $upstream_response_time $request $status $upstream_addr';
#Apache示例
SetEnvIf REMOTE_ADDR "(.+)" CLIENTIP=$1
SetEnvIf X-Forwarded-For "^([0-9.]+)" CLIENTIP=$1
LogFormat "%{CLIENTIP}e %D %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" trueip_combined
#Tomcat示例
https://tomcat.apache.org/tomcat-7.0-doc/api/org/apache/catalina/valves/AccessLogValve.html
https://tomcat.apache.org/tomcat-7.0-doc/api/org/apache/catalina/valves/AccessLogValve.html

#PHP示例
public static String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader(" X-Forwarded-For ");
if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {
ip = request.getHeader(" Proxy-Client-IP ");
}
if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {
ip = request.getHeader(" WL-Proxy-Client-IP ");
}
if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
屏蔽客户端真实IP
配置Apache屏蔽某源地址
参考下面的内容修改配置文件:
Order deny, allow
SetEnvIf X-Forwarded-For "^(192\.168\.0\.1)$" deny1
SetEnvIf X-Forwarded-For "^(172\.16\.0\.1)$" deny2
Deny from env=deny1
Deny from env=deny2“Order deny, allow”的顺序可以根据使用方式自定义。 “SetEnvIf”用来定义一个环境变量。这里将”X-Forwarded-For”字段作为一个变量,并使用了一个正则表达式匹配某IP(192.168.0.1)。 后续的Deny将根据该变量将所匹配IP进行屏蔽。
配置Nginx屏蔽某源地址
参考下面的内容修改配置文件:
set_real_ip_from 10.10.251.0/24;
real_ip_header X-Forwarded-For;
deny 192.168.0.1;其中”set_real_ip_from”资源的”10.10.251.0/24”IP地址为UCloud北京BGP-C机房的ULB所在网段地址。 nginx会将来源为该网段的”X-Forwarded-For”作为真实IP地址。 deny后面的IP,既为所需要屏蔽的IP地址。