What is Dynamic DNS?

Dynamic DNS is a DNS service, which provides the option to change the IP address of one or multiple DNS records automatically when the IP address of your device is changed dynamically by the internet provider. The service is also called DDNS or Dyn DNS in technical jargon. If you don’t have a static IP, then the IP changes each time you reconnect to the Internet. To avoid manual update of your records every time the IP changes, you can set up Dynamic DNS for your domain.

This type of service is most commonly used in remote devices (like security cameras, local servers, etc.). Dynamic DNS helps people not to lose access to their devices, regardless of the possible change of their home IP. Why is this happening? The ISPs usually rely on a dynamic allocation of IP addresses to the customers for a certain amount of time. When that time finishes, they will be given a new one.

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Dynamic DNS 用於什麼？

遠端存取

從任何位置連線到您的家用或辦公室網路，確保輕鬆存取檔案與應用程式。

託管伺服器

使用固定網域名稱在個人裝置上執行網站、FTP 伺服器或遊戲伺服器。

安全攝影機

無需靜態 IP 即可遠端監控您的住家或商業安全攝影機。

IoT 裝置

遠端管理與存取智慧家庭系統等物聯網 (IoT) 裝置。

VPN 存取

設定並管理 Virtual Private Network (VPN)，以安全連線到您的私人網路。

遊戲

使用穩定的網域名稱作為您的遊戲伺服器，與朋友主持多人遊戲連線。

The pros of Dynamic DNS

If you are considering a static IP address, it is important to remember that there are many different advantages that come with having one. Naturally there are also disadvantages. One of the downsides of configuring a static IP address is that it can grow quite expensive. Free Dynamic DNS by ClouDNS is often regarded as a much more portable option and it will continue to work whether you have a dynamic or static IP address. On the other hand, for all the premium accounts we provide an additional and very beneficial feature - Dynamic DNS history.

Let's see the following situation - you are using services like Amazon EC2 or Google Cloud. By default, they give you a Dynamic IP address. If you want a static IP address, you will be additionally charged. In that case, it's more efficient to have a Dynamic DNS and keep your expenses low.

The way that Dynamic DNS works is by giving a network device the ability to notify DNS servers to automatically change in real time, alongside the active DNS configuration, IP addresses, configured hostnames and some other information. This is something that would normally have to be initiated by the administrator.

Benefits from the Dynamic DNS

Some of the main benefits of setting a Dynamic DNS include:

Improved accessibility

You can make sure that your system will use the consistent name in the URL you type, even if the IP address for that URL consistently changes.

Efficiency

There is no need to continually change settings on every PC each time you want to change network infrastructure or other options.

Cost savings

You can have many addresses which can all be used at one time rather than the chance of IP address conflict.

Improved Reliability

透過確保 DNS 記錄始終保持最新，提升託管於動態 IP 位址上之網頁服務的可靠性。

Switching to a Dynamic DNS is a fairly easy process and whether you are a business owner or you are interested in working remotely with the help of a VPN, needing remote access for your devices or just hosting your own personal website, it will be helpful to have the advantage of Dynamic DNS on your side.

Consider some of these top advantages and more to switching over to Dynamic DNS and remember that there are plenty of tutorials on our website on how to set up this process and begin.

Free Dynamic DNS by ClouDNS

ClouDNS provides Free Dynamic DNS with all DNS hosting plans. Sign up new account for free from here.

How to configure Dynamic DNS?

ClouDNS 的 Dynamic DNS 服務會為每筆 A (IPv4) 和 AAAA (IPv6) 記錄提供一個名為 DynURL 的唯一 URL。

Begin your configuration journey with our video tutorial, specifically focused on the ClouDNS Dashboard setup:

You have already set up your Dynamic DNS and you are ready to move forward? Here is how you can configure it on your devices:

Free DNS
Premium S
$2.95/月 		Premium M
Most popular
$4.95/月 		Premium L
$14.95/月
? DNS域: 1 5 50 400
? DNS記錄: 50 200 2,000 20,000
? Dynamic DNS hostnames: 1 10 100 1,000
? DNS queries per month: i 500K i 5M i 150M i 500M
? 郵件轉發: 1 10 100 1,000
? DNS Failover checks: - 1 2 3
註冊 Start Free 30-day Trial Start Free 7-day Trial Buy Now
Free DNS
Free Forever
  • 4 Unicast DNS servers
  • 1 DNS zone
  • 50 DNS記錄
  • 500K DNS queries per month
  • 1 Mail forward
免費註冊
Premium S
$2.95/月
  • +4 Anycast DNS servers
  • 5 DNS域
  • 200 DNS記錄
  • 5M DNS queries per month
  • 1 DNS Failover check
  • 10 郵件轉發
  • Extended Features
Completely free trial. No credit cards required. No tricks.
Start Free 30-day Trial
Most popular
Premium M
$4.95/月
  • +4 Anycast DNS servers
  • 50 DNS域
  • 2,000 DNS記錄
  • 150M DNS queries per month
  • 2 DNS Failover checks
  • 100 郵件轉發
  • Free SSL
  • Extended Features
Completely free trial. No credit cards required. No tricks.
Start Free 7-day Trial
Premium L
$14.95/月
  • +4 Anycast DNS servers
  • 400 DNS域
  • 20,000 DNS記錄
  • 500M DNS queries per month
  • 3 DNS Failover checks
  • 1,000 郵件轉發
  • Free SSL
  • Extended Features
Buy Now

Frequently Asked Questions

FAQ

  • 為什麼我需要 Dynamic DNS？ - 如果您有經常變更的動態 IP 位址，但想使用固定網域名稱存取裝置或服務，Dynamic DNS 會很有用。
  • 我可以在任何裝置上使用 Dynamic DNS 嗎？ - 可以，只要支援 Dynamic DNS，DDNS 就可用於各種裝置，包括路由器、攝影機、伺服器和電腦。
  • 我可以將 Dynamic DNS 用於 IPv6 位址嗎？ - 可以，您可以將 Dynamic DNS 用於 IPv4 與 IPv6 位址。
  • DDNS 多久更新一次我的 IP 位址？ - 每當偵測到變更時，它就會更新您的 IP 位址。頻率取決於 ISP 變更您 IP 位址的頻率，以及 DDNS 用戶端的設定。
  • DDNS 可以提升我的網際網路速度嗎？ - 不會，DDNS 不會影響網際網路速度。它只是確保您可使用固定網域名稱存取網路裝置。
  • 對 ClouDNS Dynamic DNS 服務還有疑問嗎？ - You can contact us via our 24/7 Live chat support or if you prefer, you can send a message on support@cloudns.net.

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