Article ID: 6257, created on Apr 16, 2009, last review on May 10, 2014

  • Applies to:
  • Sitebuilder 4.5 for Windows


Sitebuilder site is configured for publishing to domain hosted on Parallels Plesk Panel Windows. When I attempt to publish the site or verify publishing location I received the following error message:

Error: FTP error: Cannot log in to the publishing server. The provided credentials are invalid.

What causes the problem?


  1. Invalid publishing settings.

  2. "Joomla" application is installed on the domain where to the site is published.

  3. Parallels Plesk Sitebuilder works with Publishing FTP server in passive mode. The problem is caused by the fact that FTP server on publishing host does not work in passive mode. This may be caused by IP Security Policies.


Here are site publishing settings (Sites > %site name% > Publishing Settings):

Host (IP address or DNS name): %publishing host%
Login: %ftp login%
Working directory: /httpdocs/%directory%
Web site URL: http://%domain.tld%/site
  1. Verify site publishing settings and correct publishing settings:

    • domain name %domain.tld% is resolved to IP Address %publishing host% on Sitebuilder server;
    • FTP login is possible to the domain with credentials from Publishing Settings;
    • a file uploaded to /httpdocs/%directory% via FTP is available via http://%domain.tld%/site.
  2. Remove "Joomla" application from the domain.

  3. Try disabling IP Security Policies, namely polity Packet Filter for test.

After that if FTP server works correctly in passive mode and publishing works then you need to review and reconfigure IP Security Policies.

Additional information

[Parallels Plesk Sitebuilder 4.5 for Linux] How to setup FTP host correctly?

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