server
{
    listen 9999 ssl http2;
    client_max_body_size 20M;
    ssl_certificate    /home/harson/webdav/pem/fullchain.pem;
    ssl_certificate_key    /home/harson/webdav/pem/privkey.pem;
    ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3;
    ssl_ciphers EECDH+CHACHA20:EECDH+CHACHA20-draft:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    add_header Strict-Transport-Security "max-age=31536000";
    error_page 497  https://$host$request_uri;

    location /
    {
        dav_methods PUT DELETE MKCOL COPY MOVE;
        dav_ext_methods PROPFIND OPTIONS;
        dav_access group:rw all:r;
        root /HDDs;
        auth_basic "Authorized Users Only";
        auth_basic_user_file /home/harson/webdav/authorize.conf;
    }

    access_log  /home/harson/webdav/logs/webdav.log;
    error_log  /home/harson/webdav/logs/webdav.error.log;
}

sudo nginx -s reload

ftps

sudo apt install vsftpd
sudo systemctl start vsftpd
sudo systemctl enable vsftpd
sudo cp /etc/vsftpd.conf  /etc/vsftpd.conf_default
sudo ufw allow 20/tcp
sudo ufw allow 21/tcp
sudo nano /etc/vsftpd.conf

# Example config file /etc/vsftpd.conf
# Run standalone?  vsftpd can run either from an inetd or as a standalone
# daemon started from an initscript.
listen=NO
#
listen_ipv6=YES
#
# Allow anonymous FTP? (Disabled by default).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# If enabled, vsftpd will display directory listings with the time
# in  your  local  time  zone.  The default is to display GMT. The
# times returned by the MDTM FTP command are also affected by this
# option.
use_localtime=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#xferlog_file=/var/log/vsftpd.log
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# This option should be the name of a directory which is empty.  Also, the
# directory should not be writable by the ftp user. This directory is used
# as a secure chroot() jail at times vsftpd does not require filesystem
# access.
secure_chroot_dir=/var/run/vsftpd/empty
#
# This string is the name of the PAM service vsftpd will use.
pam_service_name=vsftpd

#FTP root dirctory
local_root=/HDDs/
#
# This option specifies the location of the RSA certificate to use for SSL
# encrypted connections.
rsa_cert_file=/home/harson/webdav/pem/fullchain.pem
rsa_private_key_file=/home/harson/webdav/pem/privkey.pem
ssl_enable=YES
#
#Some Android client do not support ssl reuse 
require_ssl_reuse=NO
#
# Uncomment this to indicate that vsftpd use a utf8 filesystem.
utf8_filesystem=YES