MCDNS: How to Move Your Domain to ns1.mcdns.uz and ns2.mcdns.uz

DNS decides whether your website opens and your email arrives. MCDNS is our own DNS servers in Tashkent, free for every MYCLOUD customer. Here is what they give you and how to move a domain without your site or email going down for a minute.

What DNS hosting is and why you need it

When someone opens company.uz, the browser first asks the domain’s DNS servers which IP address the site is on. Mail servers find out where to deliver email for info@company.uz the same way. These answers live in the domain’s DNS zone — a set of A, MX, TXT and other records. DNS hosting is the servers that store the zone and answer queries.

If the DNS servers are down, nothing works — neither the website nor email — even though the servers running them are fine.

What MCDNS gives you

• Two independent name servers — ns1.mcdns.uz and ns2.mcdns.uz. They use different links: one via BGP, the other via an independent provider. If one link fails, the domain keeps answering.
• A record editor in your client area — A, AAAA, CNAME, MX, TXT, SRV and CAA, no command line.
• DNSSEC — the zone is signed, so answers can’t be forged.
• Servers in Uzbekistan — visitors in Uzbekistan get answers over a short route.
• Free for MYCLOUD customers — MCDNS is already included in MCHosting plans. If your website is hosted elsewhere, enable MCDNS separately in your mcvps.uz account — also free.

Step 1. Prepare the zone in MCDNS

Add the domain in your client area and check the records. If the site is created on MCHosting, the main records appear automatically.

The golden rule of moving: before you change NS, MCDNS must have every record you need — not only the website, but email too. Look up the current records at your current DNS provider and copy them over:

A day before the move, lower the TTL of the records at your old provider to 300 seconds — changes will then spread faster.

Step 2. Change NS at the registrar

1. Log in to the registrar where the domain is registered. For .uz domains, that is where you bought it.
2. Open the domain settings, section “DNS servers”, “NS” or “Name servers”.
3. Remove the old servers and enter the two new ones: ns1.mcdns.uz and ns2.mcdns.uz.
4. Save.

It doesn’t matter which registrar the domain is with: you don’t need to transfer it, only the name servers change.

Step 3. Check that the change has spread

New NS usually start working within a few hours, sometimes up to 72 hours. In a Windows, macOS or Linux terminal:

nslookup -type=ns company.uz

If the answer shows ns1.mcdns.uz and ns2.mcdns.uz, the domain is served by MCDNS. Check the website and email as well:

nslookup company.uz
nslookup -type=mx company.uz

While the change spreads, some visitors still see the old records — so don’t switch off your old hosting and old DNS until the check shows the new servers.

Step 4. Enable DNSSEC (optional)

Enable DNSSEC for the zone in your client area and add the DS record shown there at your registrar. If the registrar doesn’t accept DS records, DNS works as usual without DNSSEC.

Common mistakes

• NS changed, and email stopped working. MX and TXT weren’t copied into the zone. Add them in MCDNS — records update immediately, and the rest of the internet picks them up according to TTL.
• Two SPF records. A domain must have one v=spf1 record: if email, a CRM and the website all send mail, combine them in one record.
• A CNAME on the bare domain. @ can’t use CNAME — only A and AAAA. CNAME is for subdomains like www.
• Zero balance. If the balance runs out, the website shows a placeholder page while the domain’s email keeps working. The zone is kept for 30 days — top up within that time, otherwise it is deleted.

Detailed record guides are in the MCHosting knowledge base. It’s convenient to keep the website and DNS together on MCHosting and email on your domain in MCMail: then SPF, DKIM and DMARC are added automatically. Questions? Message the chat in your mcvps.uz account: an AI assistant or an operator will reply.