Eucalyptus Affected Versions: 3.3.0 to 3.4.0
Recursive DNS Server Behavior Change After 3.3.x to 3.4.0 Upgrade
If the /etc/resolv.conf on the CLC has been configured to use itself (i.e. IP of CLC) in a Eucalyptus 3.3.x cloud as a nameserver, after upgrading to Eucalyptus 3.4.0, users will have to define recursive DNS servers in CLOUD_OPTS in the eucalyptus.conf on the CLC.
To resolve this issue, please add the desired recursive DNS servers into the CLOUD_OPTS variable in the CLC eucalyptus.conf file:
For example, if a user wanted the recursive DNS servers to be 126.96.36.199 and 188.8.131.52, and had a search domain of acme.org, the entry would look like the following: