Unable to start DNS service on the Plesk server: missing semi-colon before dnssec-lookaside

Symptoms

• Unable to start DNS service in Plesk > Tools & Settings > Services Management with the error:
  

  PLESK_ERROR: Unable to start service: Unable to manage service by dnsmng ('start', 'dns'):

• The DNSSEC Manager extension is installed in Plesk > Extensions > My Extensions.

• The command below shows the following output:

  # journalctl -u named-chroot
  named-checkconf[8263]: /etc/named.conf:6: missing ';' before 'dnssec-validation'
  named-checkconf[8263]: /etc/named.conf:7: missing ';' before 'dnssec-lookaside'
  named-checkconf[8263]: /etc/named.conf:7: '}' expected near ';'
  systemd[1]: named-chroot.service: control process exited, code=exited status=1
  systemd[1]: Failed to start Berkeley Internet Name Domain (DNS).

Cause

The DNSSEC Manager extension bug with the ID #EXTPLESK-3320, which will be fixed in the next extension release versions.

Resolution

1. Log into the server via SSH.

2. Using the vi text editor open the /etc/named.conf file.

3. Find and change the lines below from:

   CONFIG_TEXT: dnssec-enable yes
   dnssec-validation yes

   To

   CONFIG_TEXT: dnssec-enable yes;
   dnssec-validation yes;

4. Save changes.

5. Restart the DNS server:

   # systemctl restart named-chroot