What’s the Difference Between DNS and DHCP

DHCP (Dynamic Host Configuration Protocol) and DNS (Domain Name System) both work across the client-server architecture, though they are different terms.

While DNS maps the domain name to the IP address, DHCP is a protocol that assigns the IP address to a host in a network either dynamically or statically.

DHCP

Not so long ago, network administrators assigned the IP address for every individual device. This was not practical and took a lot of time. But to make this process easier, DHCP (dynamic host configuration protocol) was invented.

DHCP works in a centralized manner, using the server-client system. The DHCP server automatically and dynamically provides IP addresses to each new connected device.

DNS

Apart from DHCP, there’s what is known as the DNS (Domain Name System). DNS also works with the IP address for an individual’s convenience, though differently. As noted earlier, each device on the Internet has a unique address. The same applies to websites or domains.

Humans don’t want to remember a different combination of numbers for every site they like. They would want to put the most natural thing—its name. However, it’s important to note that the name is not the address.

This is where DNS kicks in. DNS receives the name and subsequently searches the Internet, aiming to locate the name server or where the information about the name is located.

Learn more about DNS and why you should change it.

DNS vs. DHCP

Below is a comparison table containing more important parameters about DNS and DHCP.

	DNS	DHCP
Purpose	DNS is usually used for resolving domains	DHCP is used for assigning IP’s to the host
Features	It translates the written names of domains to the IP addresses	DHCP provides the IP addresses of the router, host, name server, and the subnet mask of the computer
Purpose	You can use DNS for locating or finding the Active Directory domain servers	DHCP can provide IP to host for some limited time
Port that it uses	DNS uses port 53	DHCP uses port 67 and 68
Method of working	DNS works in a decentralized manner	DHCP works in a centralized manner
Benefit	DNS eliminates the need to keep in mind or remember all the IP addresses	DHCP is a very reliable method of assigning IP addresses

 

Is DNS better than DHCP? 

If you are looking for a simple and efficient way to manage IP addresses, DHCP may be the better option. But, if you need more control over your network or want to implement advanced features, DNS may be the better choice. Ultimately, it is essential to consider your specific needs before making a decision.

Conclusion

As you can see, DNS and DHCP are entirely different things; each one has its purpose. However, what’s important to note is that both are very helpful for us. There is no rivalry between DHCP and DNS. The internet is quite complicated, though technologies such as DHCP and DNS make everything easier for us.

Learn how to flush your DNS cache.

DNS eliminates the need for internet users to remember complicated IP addresses, while DHCP reduces the time-consuming process of configuring the systems manually in a network, making everything fast and automatic.

Both technologies are helpful because they make everything convenient, especially for administrators and users of the Internet or a network.