There is no correlation between the two. A server can have an IP address without having any form of email system on it, and a server with an email system can have more than one account, and more than...
That means that the DHCP server keeps track of what IP addresses - out of a pool (or set) of addresses - have been assigned. Any time a host (computer or similar) requests an IP address, the DHCP...
To connect a node to a network as large as the Internet, an addressing system would have to be set in order to facilitate the information transactions. This system must be able to identify the...
The "subnet" or "network" ip address depends on how your network is subneted. Also, your gateway IP is whatever IP address is assigned to your network gateway. The gateway will usually either be a...