Apache SSL/TLS Security Settings

1. Connect to the server via ssh or access the shell via the console.
2. Type in the following, and then press Enter:

   sudo nano /etc/apache2/sites-enabled/default-ssl.conf

3. Locate the line in the file

   SSLProtocol ALL -SSLv2

4. Comment out this line by placing a # at the beginning of the line.
5. Add the following lines below the line that you just commented out:

SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder On
SSLCipherSuite ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS

1. Type CTRL-X and then press Enter to exit.
2. Enter Y to save changes.
3. Do not change the name and press Enter to save the changes.
4. Type in the following, and then press Enter:

   sudo nano /etc/apache2/apache2.conf

5. Scroll to the bottom of the file.
6. Add the following lines:

SSLProtocol ALL -SSLv2 -SSLv3
SSLHonorCipherOrder On
SSLCipherSuite ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS

1. Type CTRL-X and then press Enter to exit.
2. Enter Y to save changes.
3. Do not change the name, and press Enter to save the changes.
4. Type in the following, and then press Enter:

   sudo service apache2 restart

You can verify the active ciphers by running the following command:

nmap -sV --script ssl-enum-ciphers -p 443 <host>