Multi Server - NS - Firewall ports

Discussion in 'ISPConfig 3 Priority Support' started by anvarit, Jul 1, 2013.

  1. anvarit

    anvarit New Member

    Hi all,

    I have a working multi server ispconfig cluster that is working perfectly, but I'm hardening my security a bit and I want to check if incoming 3306 (mysql) is needed on a nameserver?

    For the moment I only have UDP 53 and SSH as open ports.

  2. till

    till Super Moderator

    Incoming mysql is only required on the master as the slaves connect to the master.
  3. anvarit

    anvarit New Member

    Thanks, so all the sync (dns, settings) features are just the slaves who read out the db on the master?
  4. till

    till Super Moderator

    Yes, the master is not contacting the slaves.

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