ProFTPD Over SSL/TLS2017/04/23

	Configure ProFTPD to use SSL/TLS.
[1]	Create self-signed certificates.

root@www:~#

cd /etc/ssl/private

root@www:/etc/ssl/private#

openssl req -x509 -nodes -newkey rsa:2048 -keyout proftpd.pem -out proftpd.pem -days 365

Generating a 1024 bit RSA private key
......++++++
.......++++++
writing new private key to '/etc/pki/tls/certs/proftpd.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]:

# country

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 (eg, YOUR name) []:

www.srv.world

# server's FQDN

Email Address []:

root@srv.world

# admin's email

root@www:/etc/ssl/private#

chmod 600 proftpd.pem

[2]	Configure ProFTPD.

root@www:~#

vi /etc/proftpd/proftpd.conf

# line 140: uncomment

Include /etc/proftpd/tls.conf

root@www:~#

vi /etc/proftpd/tls.conf

# line 10-12: uncomment

TLSEngine               on
TLSLog                  /var/log/proftpd/tls.log
TLSProtocol             TLSv1.2

# line 27-28: uncomment and change

TLSRSACertificateFile

/etc/ssl/private/proftpd.pem

TLSRSACertificateKeyFile

/etc/ssl/private/proftpd.pem

root@www:~#

systemctl restart proftpd

FTP Client : Ubuntu

	Configure FTP Client to use FTPS connection.
[3]	Install FTP Client 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

zapus@client:~$

lftp -u ubuntu www.srv.world

Password:
lftp ubuntu@www.srv.world:~>

FTP Client : Windows

[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]	User's Password is required. Input it.

[7]	Following warning is shown because the certificate is self-signed, it's no ploblem. Go next.

[8]	Just connected with FTPS.

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