Nginx HTTPS IP:11.11.11.11 日志
55.55.55.55 - - [02/Feb/2015:13:25:24 +0800] "GET /temp/u.jpg HTTP/1.1" 200 12 "https://www.abc.com/new/abc.html" "Mozilla/5.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322) "

Varnish HTTP IP:22.22.22.22 日志
55.55.55.55 - - [02/Feb/2015:13:25:24 +0800] "GET /temp/u.jpg HTTP/1.0" 200 12 "https://www.abc.com/new/abc.html" "Mozilla/5.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322) "

Nginx HTTP IP:33.33.33.33 日志

55.55.55.55 - - [02/Feb/2015:13:25:24 +0800] "GET /temp/u.jpg HTTP/1.1" 200 12 "https://www.abc.com/new/abc.html" "Mozilla/5.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322) " "55.55.55.55, 11.11.11.11,22.22.22.22"