I'm looking for some piece of advice on the following. We ran Shodan scan against our domain and the report is coming with some detailed information about the firewalls as for instance hostname,smartCenter host and public IP address:
Firewall Host: B-ECOM-xxx.xx
SmartCenter Host: b-chk-mgmt-ecom-xxx.xxx.ie
Any ideas on how to avoid this type of information to be disclosed?
We have seen through our SIEM, that China for instance are running this type of scans to our firewalls.