You are *required* to use the date.timezone setting or the date_default_timezone_set() function.

2013/09/18 15:23:08 [error] 4023#0: *2 FastCGI sent in stderr: "PHP message: PHP Warning:  phpinfo(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set()
function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead 

解决方法：

在php.ini里加上

date.timezone = "Asia/Shanghai"（去掉前面的；）

2013/09/18 15:00:22 [error] 3855#0: *1 open() "/usr/local/nginx/html/favicon.ico" failed (2: No such file or directory), client: 192.168.254.152, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "192.168.254.46"

解决方法：vi  nginx.conf  加上

location = /favicon.ico {
log_not_found off;
}