DNS (Domain Name Service) is the age of big things in today’s IT infrastructures – without it, your business grinds to a halt. All software now depends on DNS in one way or another.

Want to send an email? Your email application uses DNS to locate the IP location of your mail server so that you can send emails.

Want to print something? Your computer will use DNS to locate the printer’s IP.

Do you want to access your company’s corporate database? Your software will use DNS to locate the IP of the database server.

DNS works like a huge digital phone book that indexes all the IP addresses of servers and printers in your community. Without it, your computer has a hard time accessing those different structures.

So when I visit sites that might still be DNS roaming on an older Windows NT server on the desktop, I’m horrified.

In many cases, DNS servers were implemented in response to certain requirements: someone wanted a DNS server so they could enforce a proxy, or certain software required a DNS server. But with larger packages and offerings being launched, DNS infrastructure is often the final factor considered. DNS servers and domain names often deployed without an overall strategy are key to a disorganized, inflexible and poorly configured mess.

Install an Active Directory domain controller and it will try to resolve the AD zone call in DNS. If you don’t have a DNS server in your community, or can’t touch one, it will routinely post one to the DC. You might think it’s “cool”, “does all the hard onboarding for me”, but this forces a custom DNS technology that won’t be top of the line in the enterprise business in the long run. For example, the distribution center you set up in a remote area or community section may not always be resilient. The fact that DNS runs in a DC way, so it’s not always on dedicated hardware, so different packages can also affect overall performance or server provisioning. Installing core security updates from Microsoft is essential, but in many cases, requires a reboot to affect provisioning of the roaming DNS engine on the domain controller.

As your infrastructure has grown to rely on DNS servers that are co-hosted on Microsoft servers, it quickly becomes apparent that taking advantage of Microsoft’s security updates and carrier packs affects DNS provisioning. Restarts should be carefully considered so that you can identify packets that might be affected and to ensure that those packets can reach backup DNS servers. Without agreeing to make plans for the DNS infrastructure, you begin to discover incorrectly configured software servers that have no secondary or tertiary DNS servers configured, or have servers configured that no longer work the DNS operator. Also, unexpectedly, you can see which servers the DNS operator has stopped or crashed.

These misconfigured structures seem simpler, as is evident when the DNS server crashes or is restarted for maintenance, and the effect can range from a minor inconvenience (the CEO can’t get his email) to catastrophic (the buying and selling of the entire bank is. defenceless). in Ana. for 15 minutes even with a low bag).

To prevent these problems from affecting DNS carrier provision, some large companies have started to deal with DNS infrastructure strictly by taking an end-to-end approach. This involves having one person or group responsible for the entire DNS infrastructure and deploying a dedicated DNS server home computer that can be controlled by that group. Utilizing this technology allows a “DNS pool” to arbitrate between the DNS requirements of different projects and ensures that a well-established approach is taken to configuring modern DNS names and servers. Agencies will often set up an IP Address Management (IPAM) product to help them manage IP addresses and automate updates in the DNS environment.