ADDC customer virtual machine port 443 connectivity troubleshooting case CAS CloudOS

In the addc data network, the above is the topology diagram. The customer website virtual machine cannot access port 443, other servers are unreachable, and the firewall corresponding to the website virtual machine has been shut down.

View virtual machine firewall.

cmd firewall.cpl shows the firewall is already closed.

cmd netstat -ano | findstr :443 shows there is a listening port.

The cas virtual machine acl port profile allows the port.

The cloudos virtual firewall policy allows traffic.

Since the firewall on the virtual machine server is turned off but IPsec policies still exist this can cause port connectivity issues.

Use the cmd command netsh ipsec static show all to check for existing 443 policies.

Enter secpol.msc in the run window and change the policy to unassigned.