Vsftpd Over SSL/TLS2016/12/05

	Enable SSL/TLS for Vsftpd to use secure FTP connections.
[1]	Create certificates.

[root@www ~]#

cd /etc/pki/tls/certs

[root@www certs]#

openssl req -x509 -nodes -newkey rsa:2048 -keyout /etc/pki/tls/certs/vsftpd.pem -out /etc/pki/tls/certs/vsftpd.pem

Generating a 2048 bit RSA private key
......++++++
.......++++++
writing new private key to '/etc/pki/tls/certs/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]:

# 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 []:

xxx@srv.world

# admin email

[root@www certs]#

chmod 400 vsftpd.pem

[2]	Configure Vsftpd. Configure basic settings before it, refer to here.

[root@www ~]#

vi /etc/vsftpd/vsftpd.conf

# add to the end

# fix PASV ports

pasv_enable=YES
pasv_min_port=21000
pasv_max_port=21010

# enable SSL/TLS

rsa_cert_file=/etc/pki/tls/certs/vsftpd.pem
ssl_enable=YES
force_local_data_ssl=YES
force_local_logins_ssl=YES

[root@www ~]#

systemctl restart vsftpd

[3]	If Firewalld is running, allow PASV ports.

[root@www ~]#

firewall-cmd --add-port=21000-21010/tcp --permanent

success
[root@www ~]#

firewall-cmd --reload

success

FTP Client : Fedora

	Configure FTP Client to use FTPS connection.
[4]	Install FTP Client and configure like follows.

[redhat@dlp ~]$

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

[redhat@dlp ~]$

lftp -u fedora www.srv.world

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

FTP Client : Windows

[5]	For example of FileZilla on Windows, Open [File] - [Site Manager].

[6]	Input user info like follows, for encryption field, select [explicit FTP over TLS].

[7]	The user's Password is required. Input it.

[8]	The following waring is shown because the certificate is self-signed created one, it's no ploblem. Go next.

[9]	Just connected with FTPS.

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