diff --git a/2/SRI/exams/examen-nginx-nortega.txt b/2/SRI/exams/examen-nginx-nortega.txt
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+================================
+***      Examen de NGinx     ***
+***           ---            ***
+*** Nicolás A. Ortega Froysa ***
+================================
+
+Guía:
+	#                   --- comentario
+	[usuario@máquina]   --- en qué máquina y con qué usuario estamos
+	$                   --- comando shell
+
+Máquinas:
+	- servidor
+	- cliente
+
+[examen@servidor]
+$ sudo apt install openssh-server
+
+[usuario@cliente]
+$ ssh examen@servidor
+# de ahora en adelante, todo lo que sea en el lado servidor será con SSH
+[examen@servidor]
+# cambiamos contraseña de root a 'toor' para facilitar las cosas
+$ sudo passwd root
+$ su -
+[root@servidor]
+$ apt update
+$ apt install nginx
+$ echo "127.0.0.1    esteexamen.es" > /etc/hosts
+$ mkdir /var/www/esteexamen.es/
+$ cd /etc/nginx/sites-available/
+$ cp default esteexamen.es.conf
+$ vi esteexamen.es.conf
+$ cat esteexamen.es.conf
+server {
+        listen 80 default_server;
+        listen [::]:80 default_server;
+
+        root /var/www/esteexamen.es/;
+
+        # Add index.php to the list if you are using PHP
+        index index.html index.htm index.nginx-debian.html;
+
+        server_name esteexamen.es;
+
+        location / {
+                # First attempt to serve request as file, then
+                # as directory, then fall back to displaying a 404.
+                try_files $uri $uri/ =404;
+        }
+
+        # pass PHP scripts to FastCGI server
+        #
+        #location ~ \.php$ {
+        #       include snippets/fastcgi-php.conf;
+        #
+        #       # With php-fpm (or other unix sockets):
+        #       fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
+        #       # With php-cgi (or other tcp sockets):
+        #       fastcgi_pass 127.0.0.1:9000;
+        #}
+
+}
+
+$ ../sites-enabled
+$ rm default
+$ ln -s ../sites-available/esteexamen.es.conf ./
+# cambiar el puerto
+$ sed -Ei 's/80/8505/g' esteexamen.es.conf
+$ sed -Ei 's/index .*$/index exameninicio.html;/g' esteexamen.es.conf
+$ echo "Bienvenido al examen... empezamos" > /var/www/esteexamen.es/exameninicio.html
+$ systemctl restart nginx
+$ apt install curl
+$ curl esteexamen.es:8505
+Bienvenido al examen... empezamos
+$ apt install php-fpm
+$ vi esteexamen.es.conf
+$ cat esteexamen.es.conf
+server {
+        listen 8505 default_server;
+        listen [::]:8505 default_server;
+
+        root /var/www/esteexamen.es/;
+
+        # Add index.php to the list if you are using PHP
+        index exameninicio.html;
+
+        server_name esteexamen.es;
+
+        location / {
+                # First attempt to serve request as file, then
+                # as directory, then fall back to displaying a 404.
+                try_files $uri $uri/ =404;
+        }
+
+        # pass PHP scripts to FastCGI server
+        #
+        location ~ \.php$ {
+                include snippets/fastcgi-php.conf;
+
+                # With php-fpm (or other unix sockets):
+                fastcgi_pass unix:/var/run/php/php-fpm.sock;
+        }
+
+}
+
+$ echo '<?php echo "Es correcto el php."; ?>' > /var/www/esteexamen.es/info.php
+$ systemctl restart nginx
+$ curl esteexamen.es:8505/info.php
+Es correcto el php.