Hello,
I have this setup with three servers:
Datacenter 1:
- Server 1: Control, Application, Database, DNS
- Server 2: Application, DNS, Database, Backup, Email
Datacenter 2:
- Server 3: Application, Email, Database, Backup
I am planning in adding a new Server 4 in Datacenter 1 without a public IP. This Server 4 will store Backups for servers 1 and 2 (and future servers in Datacenter 1). This server IP will be in the internal range 192.168.0.x/24 and will only be reachable from servers in Datacenter 1. However, it will be able to reach the outside world through a gateway.
As it is only a backup server I really do not want to assign a public IP for it.
Will something break if Server 3 can not reach it?
As far as I understand enhance, Server 1 (Control) should be able to communicate with all the servers but it is mandatory that every server is able to "see" all of the other ones?
Best.