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It all depends on your network architecture and how you have your clients access the services. It's not all cloud, of course. Possibly the most important reasons for subnetting: Geographic separation: You separate geographically remote location into different subnets as routing over long distance (WAN) manages and scales better than bridging. Broadcast ...


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That's sloppy writing in the instructions, but I'm pretty sure it means you should use /24 networks (i.e. 172.16.0.0/24, 172.16.1.0/24, 172.16.2.0/24, etc). It would've been better to say to use class-C-sized networks, but even that's obsolete terminology since network classes haven't been a thing since 1993.


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By the way, 192.169.0.122/.123 are no private IP addresses. You should never use public addresses that you're not authorized to. Check out RFC 1918. There are two basic approaches: You configure a separate network (p2p, switch, VLAN) for each machine and connect one server NIC to each network (but both within the 192.169.0.120/21 subnet or larger - which ...


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