FTP : Vsftpd Over SSL/TLS2021/05/20 |
Configure Vsftpd to use SSL/TLS.
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[1] | Create self-signed certificates. But if you use valid certificates like from Let's Encrypt or others, you don't need to create this one. |
root@www:~# cd /etc/ssl/private root@www:/etc/ssl/private# openssl req -x509 -nodes -newkey rsa:2048 -keyout vsftpd.pem -out vsftpd.pem -days 3650 Generating a RSA private key .................+++++ ........+++++ writing new private key to 'vsftpd.pem' ----- You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]:JP # country code State or Province Name (full name) [Some-State]:Hiroshima # State Locality Name (eg, city) []:Hiroshima # city Organization Name (eg, company) [Internet Widgits Pty Ltd]:GTS # company Organizational Unit Name (eg, section) []:Server World # department Common Name (e.g. server FQDN or YOUR name) []:www.srv.world # server's FQDN Email Address []:root@srv.world # admin's emailroot@www:/etc/ssl/private# chmod 600 vsftpd.pem |
[2] | Configure Vsftpd. |
root@www:~#
vi /etc/vsftpd.conf # line 149 : change like follows rsa_cert_file= /etc/ssl/private/vsftpd.pem rsa_private_key_file= /etc/ssl/private/vsftpd.pem ssl_enable= YES
ssl_ciphers=HIGH
ssl_tlsv1=YES ssl_sslv2=NO ssl_sslv3=NO force_local_data_ssl=YES force_local_logins_ssl=YES systemctl restart vsftpd |
FTP Client : Ubuntu
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Configure FTP Client to use FTPS connection.
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[3] | Install FTP Client on Ubuntu and configure like follows. |
ubuntu@client:~$
vi ~/.lftprc
# create new set ftp:ssl-auth TLS set ftp:ssl-force true set ftp:ssl-protect-list yes set ftp:ssl-protect-data yes set ftp:ssl-protect-fxp yes set ssl:verify-certificate no lftp -u ubuntu www.srv.world Password: lftp ubuntu@www.srv.world:~> |
FTP Client : Windows
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[4] | For example of FileZilla on Windows, Open [File] - [Site Manager]. |
[5] | Input connection infomation like follows, and for encryption field, select [Require explicit FTP over TLS]. |
[6] | If you set self-signed certificate, following warning is shown, it's no ploblem. Go next. |
[7] | Just connected on FTPS connection. |
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