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How to configure ProFTPd to return proper external IP address?

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Marc Vidal
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Plesk for Linux kb: how-to ABT: Group A

Applicable to:

  • Plesk for Linux

Question

How to configure ProFTPd to return proper external IP address?

Answer

Since Plesk Onyx 17.8 this is automatically enabled in ProFTPd configuration files once the Public IP address is added in Tools & Settings > IP Addresses > 192.0.2.2 > Public IP address and a Subscription is assigned to this IP address.

This can be verified with the following steps:

  1. Connect to the server via SSH

  2. The public IP address is added as MasqueradeAddress in the FTP VirtualHost section:

    # cat /etc/proftpd.d/50-plesk.conf
    ...
    <VirtualHost 192.0.2.2>
    MasqueradeAddress 203.0.113.2
    </VirtualHost>
    ...

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2 comments

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  • Avatar
    Glenn (Edited )

    Hi there,

    After I added Public IP address I get the following Error in filezilla:

    Status: Disconnected from server
    Status: Resolving address of host.abc.com
    Status: Connecting to xx.xx.xx.xx:21...
    Status: Connection established, waiting for welcome message...
    Status: Initializing TLS...
    Status: Verifying certificate...
    Status: TLS connection established.
    Status: Logged in
    Status: Retrieving directory listing...
    Command: PWD
    Response: 257 "/" is the current directory
    Command: TYPE I
    Response: 200 Type set to I
    Command: PASV
    Response: 227 Entering Passive Mode (xx.xx.xx.xx,157,197).
    Command: MLSD
    Error: Connection timed out after 20 seconds of inactivity
    Error: Failed to retrieve directory listing

    The above example is set in 50-plesk.conf.

    If I remove Public IP, it works again.

    Any ideas on why it fails with Public IP set?

    thanks
    G

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  • Avatar
    Yulia Plokhotnikova

    hi @Glenn,

    If your server is behind NAT and the public IP is added in Tools & Settings > IP addresses in Plesk, the issue may be caused by incorrect firewall configuration on NAT (Misconfigured routing/external Firewall settings). To solve this, firewall should be configured properly by the hosting provider (server owner). Alternatively, public IP should be removed from Tools & Settings > IP Addresses menu.

    Also the following article may be helpful:

    https://support.plesk.com/hc/en-us/articles/213902285

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