Hello, I have a free ipa server with dns and ca integrated that is currently running. Now I want to set up a replica server but I can't figure out some parts. It gives an error when I want to set it up with the following steps. How can I overcome this problem? 

ipa-replica-install --setup-dns --setup-ca --mkhomedir

Lookup failed: Preferred host idm02ntp.tutel.lab does not provide DNS.
Reverse DNS resolution of address 101.45.58.172 (replica.lab.lab) failed. Clients may not function properly. Please check your DNS setup. (Note that this check queries IPA DNS directly and ignores /etc/hosts.)

thankyou.