zouyang08/nginx-ssl-config-COMODO.md

## nginx-ssl-config-COMODO.md

      
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              nginx-ssl-config-COMODO.md
            
          
    The process starts by creating the CSR and the private key:
openssl req -nodes -newkey rsa:2048 -keyout mydomain.com.key -out mydomain.com.csr

Generates

mydomain.com.key
mydomain.com.csr

After validation, you will get a zip file with 4 files:

AddTrustExternalCARoot.crt
COMODORSAAddTrustCA.crt
COMODORSADomainValidationSecureServerCA.crt
mydomain_com.crt

We have to create a certificate with all the intermediate certs.
# order is important!
cat mydomain_com.crt COMODORSADomainValidationSecureServerCA.crt COMODORSAAddTrustCA.crt AddTrustExternalCARoot.crt > mydomain.com.pem

Once we have this pem file, we can configure nginx:
ssl    on; 
ssl_certificate         /etc/nginx/keys/mydomain.com.pem;
ssl_certificate_key     /etc/nginx/keys/mydomain.com.key;

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

ssl_session_cache shared:SSL:1m;
ssl_session_timeout  5m;

Then you just have to restart nginx:
sudo service nginx configtest
sudo service nginx restart

Use openssl s_client command to verify ssl:
openssl s_client -connect www.mydomain.com:443