If you come accross this notification on Kayako it means that the particular server are exposing bind version. You can disable it by following this guide,

warning[]=NAME-4210|Found BIND version in banner|-|-|
warning[]=NETW-2705|Couldn’t find 2 responsive nameservers|-|-|

[cc]vim /etc/named.conf
version “none”;
systemctl restart named[/cc]

Don’t forget to run lynis audit manually to make sure it has been disabled.

[cc]./ips1/ips1-lynis-audit[/cc]