FTP

This service will install and configure ProFTPD and manage virtual users.

Warning

For your daily project work, FTP is not required. Access through SSH/SCP is far more superior and secure (see SSH). Use FTP only to transfer files from and to certain directories if the other side does not support SCP.

Users

  • adds a FTP User

  • password: crypt password as used in /etc/passwd

  • uid: Linux system user id of desired user. Lookup on server before adding.

  • gid: Linux system group id of desired group. Lookup on server before adding.

  • home: access is restricted to this directory

Configure the ftp::users hash within the Custom JSON Server Level Configuration:

{
  "ftp::users": {
    "alice": {
      "password": "$6$1sLLOf5.$GAZDHYXEjs0MpR5uHBAR5eD00MpUasTgbyIP27PZ8WprL98XeU01N502ogYn1JKrgqEiTXn1/lkFBNZ46zZHY/",
      "uid": "1005",
      "gid": "1005",
      "home": "/home/examplenet/www/webcam/"
    }
  }
}

Tip

The password has to be encrypted. Use the following command to encrypt your desired password: mkpasswd -m sha-512

Tip

Use the “id” command to determine the appropriate uid/gid

Directories

Configure the ftp::directories hash within the Custom JSON Server Level Configuration:

{
  "ftp::directories": {
    "/home/examplenet/tmp/": {
      "limit": {
        "WRITE": {
          "DenyAll": null,
          "AllowUser": "alice"
        }
      }
    }
  }
}

will led to this ProFTPD configuration:

<Directory /home/examplenet/tmp/>
    <Limit WRITE>
        DenyAll undef
        AllowUser alice
    </Limit>
</Directory>

TLS Certificates

  • TLS is enabled and required by default

Warning

You can disable the TLS requirement by setting the ftp::wrapper::proftpd::tlsrequired string to off. As the FTP connection is not encrypted anymore, this option is strongly not recommended. Please contact us to find another solution.

Default Certificate

If not configured otherwise (see below), a self signed certificate bearing the hostname of the server will be created and used for ProFTPD.

Own Certificate

Specify your own certificate with the tls_key and tls_crt options.

Configure the ftp::wrapper::proftpd::tls_crt and ftp::wrapper::proftpd::tls_key strings within the Custom JSON Server Level Configuration:

{
  "ftp::wrapper::proftpd::tls_crt": "-----BEGIN CERTIFICATE-----\nMY-TLS-CERTIFICATE\n",
  "ftp::wrapper::proftpd::tls_key": "-----BEGIN PRIVATE KEY-----\nMY-TLS-KEY"
}

Own Certificate from File

Another option is to use existing certificates already in place on this server, for example one thats used with nginx already.

Configure the locations with the ftp::wrapper::proftpd::tls_crt_file and ftp::wrapper::proftpd::tls_key_file strings within the Custom JSON Server Level Configuration:

{
  "ftp::wrapper::proftpd::tls_crt_file": "/etc/nginx/ssl/<websitename>.crt",
  "ftp::wrapper::proftpd::tls_key_file": "/etc/nginx/ssl/<websitename>.key"
}

Tip

With this option, you can also use certificates issued through nginx by Let’s Encrypt.

Default Firewall Rule

By default, firewall rules to allow incoming ports 21 (FTP) and 49152-49162 (FTP data) will be added. To disable those default rules, set ftp::wrapper::proftpd::nftables to false within the Custom JSON Server Level Configuration:

{
  "ftp::wrapper::proftpd::nftables": false
}

Note

Please make sure to allow access for our internal monitoring system manually (IPv4: 185.17.70.112, IPv6: 2a04:503:0:1008::112)