Hide DNS Version at Power DNS

There is  a way to hide DNS Server Version for Power DNS

1- Please open

vi etc/pdns/pdns.conf

2- search line

#  version-string=anonymous
Enable it by removing #

3 edit line and remove anonymouse 

4 custom value in place of "anonymous".

save it

and then run

now checker it with dig command

dig @(here name server ) -q version.bind -c ch -t txt