Domain Name System (DNS): A global and highly distributed network service that resolves strings of letters, such as a website name, into an IP address
DNS zones: A portion of space in the Domain Name System (DNS) that is controlled by an authoritative name server
Domain: Used to demarcate where control moves from a top-level domain name server to an authoritative name server
Domain name: A website name; the part of the URL following www.
Dynamic allocation:A range of IP addresses is set aside for client devices and one of these IPs is issued to these devices when they request one
Fixed allocation: Requires a manually specified list of MAC address and the corresponding IPs
Fully qualified domain name: When you combine all the parts of a domain together
IP masquerading: The NAT obscures the sender's IP address from the receiver
MX record: It stands for mail exchange and this resource record is used in order to deliver email to the correct server
Name resolution: This process of using DNS to turn a domain name into an IP address
Network Address Translation (NAT): A mitigation tool that lets organizations use one public IP address and many private IP addresses within the network
NS record: It indicates other name servers that may also be responsible for a particular zone
NTP servers: Used to keep all computers on a network synchronized in time
Pointer resource record: It resolves an IP to a name
Port forwarding: A technique where specific destination ports can be configured to always be delivered to specific nodes
Port preservation: A technique where the source port chosen by a client, is the same port used by the router
Proxy service: A server that acts on behalf of a client in order to access another service
Quad A (AAAA) record: It is very similar to an A record except that it returns in IPv6 address instead of an IPv4 address
