![]() These zones usually include database servers, workstations, and any point of sale (POS) or voice over internet protocol (VoIP) devices. ![]() Alternatively, servers that are not accessed directly from the internet should be placed in internal server zones. email, VPN) should be organized into a dedicated zone that limits inbound traffic from the internet-often called a demilitarized zone, or DMZ. Easy for you is easy for attackers!Īll your servers that provide web-based services (ie.g. Don’t take the easy way out and make it all one flat network. Plan out a structure where assets are grouped based on business and application need similar sensitivity level and function, and combined into networks (or zones). To best protect your network’s assets, you should first identify them. This writer will not consider opening that entire list.Step 2: Architect firewall zones and IP addresses (No heavy lifting required.) Apple gives this unbelievably huge list of ports, including (for just one example of strangeness) the long-obsolete “finger” protocol port. If your firewall is one of the better ones which allows FQDN rule lookups, this is a much better choice than that huge subnet. *. seems to cover everything, as long as “*” is multilevel in its reference, i.e., as long as the rule refers not only to a., but a.a. as well. That is a huge range though, and although it appears to be controlled by Apple, it is not clear that Apple is vetting all data at all of those IPs. So if you were to configure your firewall to allow everything outbound to that gigantic range, it appears you’re done. Apple has 17.0.0.0/8 reserved to itself, that’s every IP4 address starting with 17. However, a few things appear consistent.įirst of all the IP range. It is very clear that the true situation is not very clear. Having studied lots of reference material: Remote Access, Remote Desktop, Terminal Server
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