Article ID: 124908, created on Mar 18, 2015, last review on Mar 18, 2015

  • Applies to:
  • Plesk for Linux/Unix


DNS zones are not transferred from master to slave server.

Connection from slave to master server is not possible through 53 port:

    # telnet 53


  1. Firewall prevents connection on port 53.

  2. Connection has been blocked by SElinux policy.


  1. Disable Selinux temporary to check if connection works, check Audit logs on both servers (/var/log/audit/audit.log):

    # setenforce 0
  2. Make sure that 53 port is not blocked by iptables on both servers.
  3. Make sure that 53 port is listened by named service:

    # netstat -ntpl | grep 53
    tcp        0      0 :::53             :::*            LISTEN      1164/named

Search Words

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