Install Entrust SSL in NGINX Server running in Ubuntu 14.04

install_ssl.txt

Step 1: Create chained certificate with the provided crt files. Ordering is important.

~$ cat Server.crt Intermediate.crt Root.crt > Chained_certificate.crt

Step 2: Format the concatenation
The crt file should Follow the syntax
-----Start Certificate-----
############################
############################
-----End Certificate-----
If you find any lines like -----End Certificate----------Start Certificate----- you need to fix this manually in 
the above mentioned format.

Step 3: Generate pem file from chained certificate
~$ openssl x509 -in Chained_certificate.crt -out x_domain.pem -outform PEM
Note: ensure crt file is formatted correctly, or you'll get error.

Step 3: Create a folder and move files
Now create a folder in /etc/nginx/ssl and move the pem file and the private key used during csr generation.

Step 4: Enable HTTPS configuration in nginx /etc/nginx/sites-enabled/default
server{
        .....
        .....
        server_name x_domain.com;
        ssl_certificate /etc/nginx/ssl/x_domain.pem;
        ssl_certificate_key /etc/nginx/ssl/safe_private.key;
        .....
      }

Step 5: Restart nginx server 
~$ sudo service nginx restart
this should restart service successfully, if this doesn't work as expected, 
look into /var/log/nginx/error.log to find the reason.
Note: ensure you enable port 443 to public access and start accessing the site in https.