CentOS 7
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Vsftpd Over SSL/TLS2014/07/20

 
Enable SSL/TLS for Vsftpd to use secure FTP connections.
[1] Create self-signed certificates.
[root@www ~]#
cd /etc/pki/tls/certs

[root@www certs]#
openssl req -x509 -nodes -newkey rsa:2048 -keyout vsftpd.pem -out vsftpd.pem -days 365

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]:
JP
   
# 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.
[root@www ~]#
vi /etc/vsftpd/vsftpd.conf
# enable TLS

rsa_cert_file=/etc/pki/tls/certs/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
[root@www ~]#
systemctl restart vsftpd

FTP Client : CentOS
 
Configure FTP Client to use FTPS connection.
[3] 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 cent www.srv.world

Password:
lftp cent@www.srv.world:~>
FTP Client : Windows
[4] For example of FileZilla on Windows, Open [File] - [Site Manager].
[5] Input user info like follows, for encryption field, select [explicit FTP over TLS].
[6] The user's Password is required. Input it.
[7] The following waring is shown because the certificate is own created, it's no problem. Go next.
[8] Just connected.
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