Setting FTP & SFTP

FTP
sudo apt-get update
sudo apt-get install vsftpd
systemctl start vsftpd
systemctl enable vsftpd
sudo vim /etc/vsftpd.conf
add vcode in
  anonymous_enable=NO             # disable  anonymous login
  local_enable=YES		# permit local logins
  write_enable=YES		# enable FTP commands which change the filesystem
  file_open_mode=0777
  local_umask=022		        # value of umask for file creation for local users
  dirmessage_enable=YES	        # enable showing of messages when users first enter a new directory
  xferlog_enable=YES		# a log file will be maintained detailing uploads and downloads
  connect_from_port_20=YES        # use port 20 (ftp-data) on the server machine for PORT style connections
  xferlog_std_format=YES          # keep standard log file format
  listen=NO   			# prevent vsftpd from running in standalone mode
  listen_ipv6=YES		        # vsftpd will listen on an IPv6 socket instead of an IPv4 one
  pam_service_name=ftp         # name of the PAM service vsftpd will use
systemctl restart vsftpd

SFTP
sudo apt-get install openssh-server
add code in /etc/ssh/sshd_config
  PasswordAuthentication yes
  Subsystem sftp /usr/lib/openssh/sftp-server
then
sudo service ssh restart