I have a warning about DNS installing cd one 5th but I don't what it means and how I can solve.
The message is: DNS check of <name> has failed for one of following reasons: DNS is not working, DNS is slow, the hostname of this server is not in DNS
Do I have to install a DNS server? How do I have to configure it? I use a pubblic DNS, do I have to modify the configuration?
Thanks in advance