How to Install FTP Server using VSFTPD on Ubuntu 20.04 LTS - Golang Web Development
In this Golang Web Development Series #4, we're about to learn How to Install FTP Server using VSFTPD on Ubuntu 20.04 LTS and by using FileZilla as the client side file transfer program to connect to our web server with step by step guide here in Golang's Web Development Series.
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VSFTPD Configurations:
Example config file /etc/vsftpd.conf
# The default compiled in settings are fairly paranoid. This sample file
loosens things up a bit, to make the ftp daemon more usable.
Please see vsftpd.conf.5 for all compiled in defaults.
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
listen=NO
listen_ipv6=YES
anonymous_enable=NO
local_enable=YES
# Uncomment this to enable any form of FTP write command.
write_enable=YES
local_umask=022
#anon_upload_enable=YES
#anon_mkdir_write_enable=YES
dirmessage_enable=YES
use_localtime=YES
# Activate logging of uploads/downloads.
xferlog_enable=YES
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
# If you want, you can arrange for uploaded anonymous files to be owned by
a different user. Note! Using "root" for uploaded files is not
recommended!
#chown_uploads=YES
#chown_username=whoever
# You may override where the log file goes if you like. The default is shown
below.
#xferlog_file=/var/log/vsftpd.log
# If you want, you can have your log file in standard ftpd xferlog format.
Note that the default log file location is /var/log/xferlog in this case.
#xferlog_std_format=YES
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
# It is recommended that you define on your system a unique user which the
ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
# Enable this and the server will recognise asynchronous ABOR requests. Not
recommended for security (the code is non-trivial). Not enabling it,
however, may confuse older FTP clients.
#async_abor_enable=YES
# By default the server will pretend to allow ASCII mode but in fact ignore
the request. Turn on the below options to have the server actually do ASCII
mangling on files when in ASCII mode.
Beware that on some FTP servers, ASCII support allows a denial of service
attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
predicted this attack and has always been safe, reporting the size of the
raw file.
ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
useful for combatting certain DoS attacks.
#deny_email_enable=YES
(default follows)
#banned_email_file=/etc/vsftpd.banned_emails
# You may restrict local users to their home directories. See the FAQ for
the possible risks in this before using chroot_local_user or
chroot_list_enable below.
chroot_local_user=YES
# You may specify an explicit list of local users to chroot() to their home
directory. If chroot_local_user is YES, then this list becomes a list of
users to NOT chroot().
(Warning! chroot'ing can be very dangerous. If using chroot, make sure that
the user does not have write access to the top level directory within the
chroot)
#chroot_local_user=YES
#chroot_list_enable=YES
(default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
# You may activate the "-R" option to the builtin ls. This is disabled by
default to avoid remote users being able to cause excessive I/O on large
sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
the presence of the "-R" option, so there is a strong case for enabling it.
#ls_recurse_enable=YES
secure_chroot_dir=/var/run/vsftpd/empty
# This string is the name of the PAM service vsftpd will use.
pam_service_name=vsftpd
# This option specifies the location of the RSA certificate to use for SSL
encrypted connections.
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
ssl_enable=NO
#utf8_filesystem=YES
Configure the firewall:
sudo ufw allow OpenSSH
sudo ufw allow 20/tcp
sudo ufw allow 21/tcp
sudo ufw allow 40000:50000/tcp
sudo ufw allow 990/tcp
sudo ufw enable
sudo ufw status
sudo adduser admin
