Subdomains + (optional) Domain-Mapping

Pardon the English because I’m from Brazil.

I have a WordPress with Nginx, put this configuration in nginx.conf, below the line that already existed. Nginx rebooted and still gives the error.
http://blog.codehost.com.br/

Remembering that this is a server with multiple domains.

Use with Centos WHM

user  nobody;

#no need for more workers in the proxy mode

worker_processes  2;
error_log  /var/log/nginx/error.log info;
worker_rlimit_nofile 20480;
events {
 worker_connections 5120; # increase for busier servers
 use epoll; # you should use epoll here for Linux kernels 2.6.x
}
http {
 server_name_in_redirect off;
 server_names_hash_max_size 10240;
 server_names_hash_bucket_size 1024;
 include    mime.types;
 default_type  application/octet-stream;
 server_tokens off;

#remove/commentout disable_symlinks if_not_owner;if you get Permission denied error

disable_symlinks if_not_owner;

sendfile on;
 tcp_nopush on;
 tcp_nodelay on;
 keepalive_timeout  5;
 gzip on;
 gzip_vary on;
 gzip_disable "MSIE [1-6].";
 gzip_proxied any;
 gzip_http_version 1.1;
 gzip_min_length  1000;
 gzip_comp_level  6;
 gzip_buffers  16 8k;

#You can remove image/png image/x-icon image/gif image/jpeg if you have slow CPU

gzip_types    text/plain text/xml text/css application/x-javascript application/xml image/png image/x-icon image/gif image/jpeg application/xml+rss text/javascript application/atom+xml;
 ignore_invalid_headers on;
 client_header_timeout  3m;
 client_body_timeout 3m;
 send_timeout     3m;
 reset_timedout_connection on;
 connection_pool_size  256;
 client_header_buffer_size 256k;
 large_client_header_buffers 4 256k;
 client_max_body_size 200M; 
 client_body_buffer_size 128k;
 request_pool_size  32k;
 output_buffers   4 32k;
 postpone_output  1460;
 proxy_temp_path  /tmp/nginx_proxy/;
 client_body_in_file_only on;
 log_format bytes_log "$msec $bytes_sent .";
 include "/etc/nginx/vhosts/*";
}

Teste Nginx WordPress

server {
        ##DM - uncomment following line for domain mapping
        listen 80 default_server;
    server_name codehost.com.br *.codehost.com.br ;
    ##DM - uncomment following line for domain mapping
    server_name_in_redirect off;

access_log   /var/log/nginx/codehost.com.br.access.log;
error_log    /var/log/nginx/codehost.com.br.error.log;

root /home/codehost/public_html;
index index.php;

location / {
    try_files $uri $uri/ /index.php?$args ;
}

location ~ \.php$ {
    try_files $uri /index.php;
    include fastcgi_params;
    fastcgi_pass unix:/var/run/php5-fpm.sock;
}

location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
    access_log off; log_not_found off; expires max;
}

location = /robots.txt { access_log off; log_not_found off; }
location ~ /\. { deny  all; access_log off; log_not_found off; }

}