Some security changes/hints.

install_openvpn.sh

@@ -500,6 +500,12 @@ echo ""
 echo "Note: if setting this parameter at the server configuration, this parameter *must'"
 echo "      also set this parameter at client configuration"
 echo ""
+echo "      cipher BF-CBC        # Blowfish (default)"
+echo "      cipher AES-128-CBC   # AES 128Bit"
+echo "      cipher AES-256-CBC   # AES 256Bit"
+echo "      cipher DES-EDE3-CBC  # Triple-DES"
+echo "      ..."
+echo ""
 echo -e "Type \"\033[33mNone\033[m\" if no default cipher should be set."
 echo ""
 SERVER_CIPHER=""
@@ -1736,7 +1742,7 @@ EOF
 
 if [[ -n "$SERVER_CIPHER" ]]; then
    cat <<EOF >> ${_server_conf_file} 2>> "$log_file"
-cipher AES-256-CBC
+cipher $SERVER_CIPHER
 EOF
 
 fi