Support » Plugin: NinjaFirewall (WP Edition) - Advanced Security Plugin and Firewall » Which connections need to be allowed for rules updates to work?

  • Resolved Christoph


    Thank you for your great product. 🙂

    On our site, the Rules Updates fail with the following error:

    “Error: Unable to connect to the remote server (cURL error 28: Connection timed out after 10000 milliseconds)”

    I understand why this is happening:

    Our Website is placed inside of a DMZ protected by a firewall,
    which is set to deny every outgoing connection except the connections that
    Wordpress asked for, for security upgrades etc.

    While activating the Ninja Firewall plugin the activation failed
    because the connections to “” was denied.
    After enabling that connection, the activation worked.

    Now I see that the automated firewall rules update fails because
    the IP “” can’t be reached.
    I’ve seen that this is

    Is there a list which states which connections
    need to be allowed for Ninja Firewall to operate?

    Are additional connections required for the premium version?

    Thank you very much in advance.

    Best regards,


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  • Plugin Author nintechnet


    WP and WP+ Edition:
    It is used by the “news widget”. But it can be disabled in the Firewall Options page.

    Security rules updates.

    3. Your site.
    During the Full WAF installation, the firewall’s sandbox will connect back to your site after the installation to make sure there no fatal error or will undo the modifications.

    WP+ Edition only:
    Plugin update.
    Translation files downloaded from

    So far all our subdomains use the same load-balancer IP but that may change in the future. Make sure also to whitelist IPv6 too (currently 2a01:4f8:c0c:61cc::1).

    Thread Starter Christoph


    Thank you very much for the quick response,
    this has been very helpful. 🙂

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