I am wondering if there is any best practice firewalling rules that should be put in effect in most modern networks.
For example should the network atleast have the following firewall zones?
- Client network
- Customer facing network (internett)
Is it considered best practice to keep and maintain firewalls inside the zones (on each individual server) aswell as on the zones itself?
I would appriciate any tips regarding best practice designs of firewalls.