在CentOS 7.2 添加了nginx官方的yum源，使用yum install nginx 安装的nginx/1.10.2
安装完成后我关闭了系统防火墙，默认站点可以正常访问，我又添加了另一个虚拟主机配置文件，内容如下：

server {
        listen 80;
        server_name idas.it;
        root /home/html;
        index index.html index.php;
#       location / {
#               try_files $uri $uri/ /index.php?$query_string;
#       }
        location ~ \.php$ {
                fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
                fastcgi_index index.php;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                include fastcgi_params;
        }
}

目录权限如下：

[root@hrms /]# ll && cd /home && ll && cd html && ll
total 84
dr-xr-xr-x.  17 root root  4096 Nov 12 13:39 .
dr-xr-xr-x.  17 root root  4096 Nov 12 13:39 ..
lrwxrwxrwx.   1 root root     7 Nov 12 11:37 bin -> usr/bin
dr-xr-xr-x.   5 root root  4096 Nov 12 12:16 boot
drwxr-xr-x.  20 root root  3260 Nov 12 13:10 dev
drwxr-xr-x.  83 root root  8192 Nov 12 14:40 etc
drwxr-xr-x.   5 root root    78 Nov 12 15:27 home
lrwxrwxrwx.   1 root root     7 Nov 12 11:37 lib -> usr/lib
lrwxrwxrwx.   1 root root     9 Nov 12 11:37 lib64 -> usr/lib64
drwxr-xr-x.   2 root root     6 Aug 12  2015 media
drwxr-xr-x.   2 root root     6 Aug 12  2015 mnt
drwxr-xr-x.   2 root root     6 Aug 12  2015 opt
dr-xr-xr-x. 137 root root     0 Nov 12 13:10 proc
-rw-r--r--.   1 root root 43092 Nov 12 13:11 .readahead
dr-xr-x---.   6 root root  4096 Nov 12 15:23 root
drwxr-xr-x.  24 root root   680 Nov 12 15:31 run
lrwxrwxrwx.   1 root root     8 Nov 12 11:37 sbin -> usr/sbin
drwxr-xr-x.   2 root root     6 Aug 12  2015 srv
dr-xr-xr-x.  13 root root     0 Nov 12 13:10 sys
drwxrwxrwt.  10 root root  4096 Nov 12 15:31 tmp
drwxr-xr-x.  13 root root  4096 Nov 12 11:37 usr
drwxr-xr-x.  20 root root  4096 Nov 12 13:38 var
total 12
drwxr-xr-x.  5 root  root    78 Nov 12 15:27 .
dr-xr-xr-x. 17 root  root  4096 Nov 12 13:39 ..
-rw-r--r--.  1 root  root  1097 Oct 19 00:35 default.conf
drwxrwxr-x.  2 root  root    23 Nov 12 15:24 html
drwxr-xr-x.  5 mysql mysql 4096 Nov 12 14:22 mysql
drwxrwxr-x.  2 nginx nginx    6 Nov 12 14:41 php
total 4
drwxrwxr-x. 2 root root  23 Nov 12 15:24 .
drwxr-xr-x. 5 root root  78 Nov 12 15:27 ..
-rwxrwxr-x. 1 root root 612 Nov 12 15:24 index.html

权限都给了，但是访问依然是403 Forbidden，下面是nginx的错误日志：

2016/11/12 15:31:28 [error] 17524#17524: *2 "/home/html/index.html" is forbidden (13: Permission denied), client: 10.120.9.254, server: idas.it, request: "GET / HTTP/1.1", host: "idas.it"
2016/11/12 15:39:28 [error] 17524#17524: *3 "/home/html/index.html" is forbidden (13: Permission denied), client: 10.120.9.254, server: idas.it, request: "GET / HTTP/1.1", host: "idas.it"
2016/11/12 15:39:29 [error] 17524#17524: *3 "/home/html/index.html" is forbidden (13: Permission denied), client: 10.120.9.254, server: idas.it, request: "GET / HTTP/1.1", host: "idas.it"

同样的权限配置，为什么在/var/share/nginx/html目录就能正常访问，而其他目录都没有权限呢？

[root@hrms html]# ps aux | grep nginx
nginx    17292  0.0  0.1 650776 10504 ?        S    14:50   0:00 php-fpm: pool www
nginx    17293  0.0  0.1 650776 10500 ?        S    14:50   0:00 php-fpm: pool www
nginx    17294  0.0  0.1 650776 10500 ?        S    14:50   0:00 php-fpm: pool www
nginx    17295  0.0  0.1 650776 10500 ?        S    14:50   0:00 php-fpm: pool www
nginx    17296  0.0  0.1 650776 10504 ?        S    14:50   0:00 php-fpm: pool www
root     17523  0.0  0.0  47792  1164 ?        Ss   15:31   0:00 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
nginx    17524  0.0  0.0  48184  2184 ?        S    15:31   0:00 nginx: worker process
root     17617  0.0  0.0 112648   964 pts/0    S+   16:19   0:00 grep --color=auto nginx

我后来把/home、子目录及文件的所有者和和用户组都设为nginx,但是依然是403 Forbidden，错误日志还是一样！
求老司机带路！！！！！