Certifcado SSL

Criando um parte de chave

openssl req -newkey rsa:2048 -subj /CN=hatchepsut.quijaua.com.br -nodes -keyout hatchepsut_key.pem -out hatchepsut_csr.pem

O arquivo hatchepsut_csr.pem é o que será enviado para o CAcert.org.

Salve o arquivo assinado pela CAcert como hatchepsut_server.pem.

no Nginx

    server {
        listen       443;
        server_name  hatchepsut.quijaua.com.br;

        location / {
            root   /var/www/;
            index  index.html;
        }

        ssl                  on;
        ssl_certificate      /etc/nginx/ssl/hatchepsut_server.pem;
        ssl_certificate_key  /etc/nginx/ssl/priv/hatchepsut_key.pem;
        ssl_session_timeout  5m;
        ssl_protocols  SSLv2 SSLv3 TLSv1;
        ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
        ssl_prefer_server_ciphers   on;
    }

No Apache2

 <VirtualHost 127.0.0.1:443>
  ServerName hatchepsut.quijaua.com.br:443
  UseCanonicalName DNS

  ErrorLog /var/log/apache2/nkosi.org-webmail-error.log
  CustomLog /var/log/apache2/nkosi.org-webmail-access.log common
  SSLEngine on
  SSLCipherSuite HIGH
  SSLProtocol all -SSLv2
  SSLCertificateFile /etc/apache2/ssl/nkosi_server.pem
  SSLCertificateKeyFile /etc/apache2/ssl/priv/nkosi_privatekey.pem
  SSLCertificateChainFile /etc/apache2/ssl/cacert/class3.crt 

  DocumentRoot "/var/www/"
 </VirtualHost>

Referências:

• http://pinguimribeiro.wikidot.com/ssl-cert-self
• http://hostingfu.com/article/godaddy-turbossl-certificate-nginx
• http://wiki.cacert.org/SimpleApacheCert
• http://www.comodobr.com/suporte/csr_openssl.php
• https://pt.wikipedia.org/wiki/HTTPS
• https://www.eff.org/https-everywhere
• https://blog.kaspersky.com.br/https-e-certificados-digitais/590/
• http://www.tecmundo.com.br/internet-segura/54282-hsts-tecnologia-seguranca-deveria-usada-sites.htm
• http://gutocarvalho.net/octopress/2012/11/29/entendendo-o-hsts/
• https://raymii.org/s/tutorials/HTTP_Strict_Transport_Security_for_Apache_NGINX_and_Lighttpd.html
• https://www.howtoforge.com/ssl-perfect-forward-secrecy-in-nginx-webserver