Restarting nginx: nginx: [emerg] a duplicate default server for 0.0.0.0:80 in /etc/nginx/sites-enabled/wintxcoders.com:21
nginx: configuration file /etc/nginx/nginx.conf test failed

# You may add here your
# server {
#       ...
# }
# statements for each of your virtual hosts to this file

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;

        root /usr/share/nginx/www/foro;
        index index.html index.htm;

        # Make site accessible from http://localhost/
        server_name wintxcoders.com;
}

                 error_page 404 /404.html;
                 error_page 500 502 503 504 /50x.html;
                 location = /50x.html {
                 root /usr/share/nginx/html;
         }

         location ~ \.php$ {
                 try_files $uri =404;
                 fastcgi_split_path_info ^(.+\.php)(/.+)$;
                 fastcgi_pass unix:/var/run/php5-fpm.sock;
                 fastcgi_index index.php;
                 fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                 include fastcgi_params;
         }

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ /index.html;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
        }

        location /doc/ {
                alias /usr/share/doc/;
                autoindex on;
                allow 127.0.0.1;
                allow ::1;
                deny all;
        }

        # Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
        #location /RequestDenied {
        #       proxy_pass http://127.0.0.1:8080;
        #}

        #error_page 404 /404.html;

        # redirect server error pages to the static page /50x.html
        #
        #error_page 500 502 503 504 /50x.html;
        #       root /usr/share/nginx/www;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #       fastcgi_split_path_info ^(.+\.php)(/.+)$;
        #       # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
        #
        #       # With php5-cgi alone:
        #       fastcgi_pass 127.0.0.1:9000;
        #       # With php5-fpm:
        #       fastcgi_pass unix:/var/run/php5-fpm.sock;
        #       fastcgi_index index.php;
        #       include fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #}
}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#       listen 8000;
#       listen somename:8080;
#       server_name somename alias another.alias;
#       root html;
#       index index.html index.htm;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}


# HTTPS server
#
#server {
#       listen 443;
#       server_name localhost;
#
#       root html;
#       index index.html index.htm;
#
#       ssl on;
#       ssl_certificate cert.pem;
#       ssl_certificate_key cert.key;
#
#       ssl_session_timeout 5m;
#
#       ssl_protocols SSLv3 TLSv1;
#       ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;
#       ssl_prefer_server_ciphers on;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}

# You may add here your
# server {
#       ...
# }
# statements for each of your virtual hosts to this file

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;

        root /usr/share/nginx/www/personal;
        index index.php index.html index.htm;

        # Make site accessible from http://localhost/
        server_name localhost;

                 error_page 404 /404.html;
                 error_page 500 502 503 504 /50x.html;
                 location = /50x.html {
                 root /usr/share/nginx/html;
         }

         location ~ \.php$ {
                 try_files $uri =404;
                 fastcgi_split_path_info ^(.+\.php)(/.+)$;
                 fastcgi_pass unix:/var/run/php5-fpm.sock;
                 fastcgi_index index.php;
                 fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                 include fastcgi_params;
         }

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ /index.html;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
        }

        location /doc/ {
                alias /usr/share/doc/;
                autoindex on;
                allow 127.0.0.1;
                allow ::1;
                deny all;
        }

        # Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
        #location /RequestDenied {
        #       proxy_pass http://127.0.0.1:8080;
        #}

        #error_page 404 /404.html;

        # redirect server error pages to the static page /50x.html
        #
        #error_page 500 502 503 504 /50x.html;
        #location = /50x.html {
        #       root /usr/share/nginx/www;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #       fastcgi_split_path_info ^(.+\.php)(/.+)$;
        #       # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
        #
        #       # With php5-cgi alone:
        #       fastcgi_pass 127.0.0.1:9000;
        #       # With php5-fpm:
        #       fastcgi_pass unix:/var/run/php5-fpm.sock;
        #       fastcgi_index index.php;
        #       include fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #       deny all;
        #}
}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#       listen 8000;
#       listen somename:8080;
#       server_name somename alias another.alias;
#       root html;
#       index index.html index.htm;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}


# HTTPS server
#
#server {
#       listen 443;
#       server_name localhost;
#
#       root html;
#       index index.html index.htm;
#
#       ssl on;
#       ssl_certificate cert.pem;
#       ssl_certificate_key cert.key;
#
#       ssl_session_timeout 5m;
#
#       ssl_protocols SSLv3 TLSv1;
#       ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;
#       ssl_prefer_server_ciphers on;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}

server {
        listen 80 ;
        listen [::]:80 ipv6only=on;

        root /usr/share/nginx/www/foro;
        index index.html index.htm;

Restarting nginx: nginx: [emerg] host not found in "default_server" of the "listen" directive in /etc/nginx/sites-enabled/wintxcoders.com:21
nginx: configuration file /etc/nginx/nginx.conf test failed

server {
        listen 80 ;
        listen [::]:80 ipv6only=on;

        root /usr/share/nginx/www/personal;
        index index.php index.html index.htm;

        # Make site accessible from http://localhost/
        server_name localhost;

Restarting nginx: nginx: [emerg] invalid parameter "80" in /etc/nginx/sites-enabled/wintxcoders.com:21
nginx: configuration file /etc/nginx/nginx.conf test failed

nginx: [emerg] "location" directive is not allowed here in /etc/nginx/sites-enabled/wintxcoders.com:33
nginx: configuration file /etc/nginx/nginx.conf test failed

server {
        listen 80 ;
        listen [::]:80 ;

        root /usr/share/nginx/www/foro;
        index index.html index.htm;

        # Make site accessible from http://localhost/
        server_name wintxcoders.com;
}