docker-vsftpd

This is a docker container to launch vsftpd. It comes with 4 pre-defined configuration :

• ftp : FTP
• ftps : FTPS explicit
• ftps_implicit : FTPS implicit
• ftps_tls : FTPS explicit with high cypher (ssl_ciphers=HIGH)

It comes with a pre-defined user: guest with password guest.

To use it: docker run --rm --name vsftpd -p 20:20 -p 21:21 -p 990:990 -p 21100-21110:21100-21110 --env PASV_ADDRESS=127.0.0.1 vsftpd <configuration_name>

After use: docker kill vsftpd

0. Build image

First of all build docker image

docker build -t vsftpd 

Then able to run any of predefined config

1. Simple FTP

docker run --rm --name vsftpd -p 20:20 -p 21:21 -p 990:990 -p 21100-21110:21100-21110 --env PASV_ADDRESS=127.0.0.1 vsftpd ftp

2. Explicit FTPS

docker run --rm --name vsftpd -p 20:20 -p 21:21 -p 990:990 -p 21100-21110:21100-21110 --env PASV_ADDRESS=127.0.0.1 vsftpd ftps

3. Implicit FTPS

docker run --rm --name vsftpd -p 20:20 -p 21:21 -p 990:990 -p 21100-21110:21100-21110 --env PASV_ADDRESS=127.0.0.1 vsftpd ftps_implicit

4. Explicit FTPS with HIGH cypher

docker run --rm --name vsftpd -p 20:20 -p 21:21 -p 990:990 -p 21100-21110:21100-21110 --env PASV_ADDRESS=127.0.0.1 vsftpd ftps_tls

Note about Passive mode

PASV is enabled, to use it you need to specify the PASV_ADDRESS env variable pointing to the IP address of the host when launching the container and mapping the ports range 21100-21110:

docker run -p 21:21 -p21100-21110:21100-21110 --env PASV_ADDRESS=127.0.0.1 vsftpd ftp

Note about custom PEM certificate

For FTPS configurations, by default, PEM and PKCS-12 certificate keystore files are generated to /etc/vsftpd/private location and are used by FTPS server. You can provide your own certificate keystore file, instead, by passing volume to docker run command.

For example, below command will have FTPS server use the provided certificate keystore PEM file found at /tmp/my_pem_file_dir on the host machine. Make sure the file is named as vsftpd.pem.

docker run --volume "/tmp/my_pem_file_dir:/etc/vsftpd/private" vsftpd ftps

Available volumes

Two volumes are defined:

• /home/guest : the FTP data directory of the guest user (the only available by default)
• /var/log/vsftpd : the log directory