I just installed a new Ubuntu Server 18.04. I set my hostname
hostnamectl set-hostname ****.openbayou.biz and I set
127.0.0.1 localhost [ip address] ****.openbayou.biz hostname # The following lines are desirable for IPv6 capable hosts [ip6 address] *****.openbayou.biz hostname ::1 localhost ip6-localhost ip6-loopback ff02::1 ip6-allnodes ff02::2 ip6-allrouters
I also installed OSSEC to monitor for new files, errors and changes to my server and I'm now getting these alerts:
Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018- 0001, retrying transaction with reduced feature level UDP.`
It's now repeating itself:
systemd-resolved: message repeated 4 times: [ Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.]
I've looked online for a solution and nobody is reporting this issue.