While going through the MySQL logs from a DO instance, I found the following entries:
2020-06-04T08:14:44.965714Z 2 [Warning] Hostname 'rnd.group-ib.ru' does not resolve to '188.8.131.52'. 2020-06-04T08:14:44.965862Z 2 [Note] Hostname 'rnd.group-ib.ru' has the following IP addresses: 2020-06-04T08:14:44.965873Z 2 [Note] - 184.108.40.206 2020-06-04T14:20:41.322359Z 3 [Warning] Host name 'zg-0428c-606.stretchoid.com' could not be resolved: Name or service not known
I have never seen this before. Could this be a potential security concern?
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