Update vsftpd.conf to support TLS connections

Updated config to support TLS 1.2 connections to vsftpd only.

install/rhel/7/vsftpd/vsftpd.conf

@@ -22,3 +22,16 @@ pasv_enable=YES
 pasv_max_port=12100
 pasv_min_port=12000
 use_localtime=YES
+ssl_enable=YES
+allow_anon_ssl=YES
+force_local_data_ssl=YES
+force_local_logins_ssl=YES
+ssl_tlsv1_2=YES
+ssl_sslv2=NO
+ssl_sslv3=NO
+require_ssl_reuse=YES
+ssl_ciphers=HIGH
+idle_session_timeout=600
+data_connection_timeout=120
+rsa_cert_file=/usr/local/vesta/ssl/certificate.crt
+rsa_private_key_file=/usr/local/vesta/ssl/certificate.key