Neste tutorial vamos lhe ensinar a habilitar o modo Rewrite no nginx para usar as url amigáveis no wordpress. Vamos editar dois aquivos da pasta /home/admin/conf/web.
Note que uso dos dois arquivos é se você estiver usando ssl no site. Caso você não esteja usando ssl, edite apenas o arquivo da base 1.

1. Arquivo seudominio.nginx.conf

server {

        listen seu-ip:80;

        index index.php;

        server_name seudominio.com www.seudominio.com; 

        index       index.php index.html index.htm;

        access_log  /var/log/nginx/domains/seudominio.com.log combined;

        access_log  /var/log/nginx/domains/seudominio.com.bytes bytes;

        error_log   /var/log/nginx/domains/seudominio.com.error.log error;

        root /home/admin/web/seudominio.com.public_html;

ssl         on;

    ssl_certificate      /home/admin/conf/web/ssl.seudominio.com.pem;

    ssl_certificate_key  /home/admin/conf/web/ssl.seudominio.com.key;

        location / {

                try_files $uri $uri/ /index.php$is_args$args;

        }

        location ~ \.php$ {

                try_files $uri =404;

                fastcgi_split_path_info ^(.+\.php)(/.+)$;

                include fastcgi_params;

                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

                fastcgi_param SCRIPT_NAME $fastcgi_script_name;

                fastcgi_index index.php;

                fastcgi_pass    127.0.0.1:9002;

        }

}

2. Arquivo seudominio.nginx.ssl.conf

server {

    listen      seu-ip:443;

    server_name seudominio.com www.seudominio.com;

    root        /home/admin/web/seudominio.com/public_html;

    index       index.php index.html index.htm;

    access_log  /var/log/nginx/domains/seudominio.com.log combined;

    access_log  /var/log/nginx/domains/seudominio.com.bytes bytes;

    error_log   /var/log/nginx/domains/seudominio.com.error.log error;

ssl         on;

    ssl_certificate      /home/admin/conf/web/ssl.seudominio.com.pem;

    ssl_certificate_key  /home/admin/conf/web/ssl.seudominio.com.key;

location / {

                try_files $uri $uri/ /index.php$is_args$args;

        }

    location / {

        location ~* ^.+\.(jpeg|jpg|png|gif|bmp|ico|svg|css|js)$ {

            expires     max;

        }

        location ~ [^/]\.php(/|$) {

            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

            if (!-f $document_root$fastcgi_script_name) {

                return  404;

            }

            fastcgi_pass    127.0.0.1:9002;

            fastcgi_index   index.php;

            include         /etc/nginx/fastcgi_params;

        }

    }

    error_page  403 /error/404.html;

    error_page  404 /error/404.html;

    error_page  500 502 503 504 /error/50x.html;

    location /error/ {

        alias   /home/admin/web/seudominio.com/document_errors/;

    }

    location ~* "/\.(htaccess|htpasswd)$" {

        deny    all;

        return  404;

    }

    location /vstats/ {

        alias   /home/admin/web/seudominio.com/stats/;

        include /home/admin/conf/web/seudominio.com.auth*;

    }

    include     /etc/nginx/conf.d/phpmyadmin.inc*;

    include     /etc/nginx/conf.d/phppgadmin.inc*;

    include     /etc/nginx/conf.d/webmail.inc*;

    include     /home/admin/conf/web/snginx.seudominio.com.conf*;

}