When do we need our own DNS?

Started by justinthomsony, Jul 22, 2022, 09:43 AM

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justinthomsonyTopic starter

A webstore on VDS is planned and the question is, should I set up my DNS or use the DNS of the hosting provider? On the server there will be only a store, mail, 1s synchronization. NJINX is planned as a server, it will probably be controlled by a panel like ispmanager, vesta or webuzo.

Guru, is it worth messing up our dns or is it better to save resources for an already expensive vds server?
Does it consume a lot of RAM, CPU?

Since I have cms CS-Cart, not Bitrix of course, but a resource-intensive engine, it is not clear what to choose for vds tariffs.
It's clear with the disk volume, but what's more important is the RAM or number of cores, or is the optimal ratio of at least 2-4 cores and more RAM?


"Turn up your dns", surely is not worth it. It's not even so much about the resources spent, although this is also important, but about the effectiveness of this system. Many hosting providers and even registrars, including the largest and most famous, sometimes experience DNS server failures. Evidently, they do not like to use distributed placement, as required.

You should understand that the required amount of resources primarily depends on the expected attendance at peak times (with some margin, of course).
The coefficient of "resource engine intensity" is only one of the components of the "formula".


It is quite natural that ordinary users know little about what DNS is for and what functions are assigned to the technology of the same name and the corresponding servers. But even a child, if you ask him about visiting some web site on the Internet, will immediately say its name or the English-language abbreviation of the resource address, without even knowing that all that information is purely conditional.

Next, it is proposed to briefly consider some of the fundamental principles of the operation and use of DNS, which may be useful to many in the future, for example, to understand some solutions to eliminate problems of access to local networks or even the Internet. Why do we need DNS technology? So, let's start with the simplest and try to explain the main purpose of the technology itself and the principles of its application in practice, taking the simplest examples as a basis.
Absolutely all users know that in order to access some Internet resource (web site), a special URL must be entered in the browser's address bar, which may consist of a set of letters, numbers and symbols. Most often, easy-to-remember addresses are used, which are either full names or abbreviations from the main names.

But few people realize that a computer is just a machine and does not know how to recognize such names. In other words, in order to redirect you to some web  site, it must receive a clear address expressed exclusively in numerical form. But it will be very problematic for a person to remember a huge number of such combinations.
That is why the DNS domain Name System was developed at the time, which allows converting ordinary names into digital addresses, and when establishing communication between the client computer and the server on which the requested page is stored, redirecting requests and responses not in a chaotic manner, but only between specific computers.