diff --git a/default.conf b/default.conf
index f5f6016..6cde8bc 100644
--- a/default.conf
+++ b/default.conf
@@ -1,5 +1,7 @@
 server {
   resolver 10.89.1.1 valid=10s;
+  proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 	root /usr/share/nginx/html;
   location /robots.txt {
     try_files $uri $uri/ /index.html;
@@ -86,6 +88,8 @@ server {
 }
 server {
   resolver 10.89.1.1 valid=10s;
+  proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 	root /usr/share/nginx/html;
   location /robots.txt {
     try_files $uri $uri/ /index.html;
@@ -351,6 +355,8 @@ proxy_set_header Referer $host;
 }
 server {
 resolver 10.89.1.1 valid=10s;
+proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 
 	root /usr/share/nginx/html;
   location /robots.txt {
@@ -619,6 +625,8 @@ proxy_set_header Referer $host;
 server {
 	root /usr/share/nginx/html;
 resolver 10.89.1.1 valid=10s;
+proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 
   location /robots.txt {
     try_files $uri $uri/ /index.html;
@@ -882,7 +890,8 @@ proxy_set_header Referer $host;
 }
 server {
 	root /usr/share/nginx/html;
-resolver 10.89.1.1 valid=10s;
+resolver 10.89.1.1 valid=2s;
+access_log /var/log/nginx/dns-debug.log;
 
 	index index.html index.htm index.nginx-debian.html;
   server_name hub.pena.digital; # managed by Certbot
@@ -903,7 +912,9 @@ resolver 10.89.1.1 valid=10s;
   }
 
   location / {
-    proxy_pass http://hub;
+    set $backend "hub";
+    
+    proxy_pass http://$backend;
 	}
 
 
@@ -1063,6 +1074,8 @@ proxy_set_header Referer $host;
 server {
 	root /usr/share/nginx/html;
 resolver 10.89.1.1 valid=10s;
+proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 
 	index index.html index.htm index.nginx-debian.html;
   server_name pena.digital www.pena.digital; # managed by Certbot
@@ -1101,6 +1114,8 @@ resolver 10.89.1.1 valid=10s;
 server {
 	root /usr/share/nginx/html;
 resolver 10.89.1.1 valid=10s;
+proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 
 	index index.html index.htm index.nginx-debian.html;
   server_name tourism.pena.digital; # managed by Certbot
@@ -1139,6 +1154,8 @@ resolver 10.89.1.1 valid=10s;
 server {
 	root /usr/share/nginx/html;
 resolver 10.89.1.1 valid=10s;
+proxy_pass_request_headers on;
+    proxy_ssl_server_name on;
 
 	index index.html index.htm index.nginx-debian.html;
   server_name solyanka.pena.digital; # managed by Certbot