How to setup free dynamic DNS for remote access to your PC如何安装免费的动态DNS为远程访问到您的PC

Posted on May 19, 2008 at 5:19 am张贴于2008年5月19日在上午05时19分

What is Dynamic DNS you might be asking? 什么是动态DNS ，你可能会问？ Basically, dynamic DNS is a service provided by third-party providers in which a clients’ constantly changing IP address is kept track of and DNS servers are updated with the new IP address automatically.基本上，动态DNS是一个提供服务的第三方供应商在一个客户不断变化的IP地址是不断跟踪和DNS服务器的更新与新的IP地址自动。 If you have a broadband Internet connection, you more than likely have a dynamic IP address.如果您有宽带互联网连接，你以上可能有一个动态IP地址。

A dynamic IP address is one that changes every so often, as compared to a static IP address, which never changes.一个动态的IP地址是一个变化，每一个经常，相比一个静态IP地址，从来没有改变。 Normally, a changing IP address does not cause any significant problem until you try to connect to your home computer from outside of your home network.通常，一个不断变化的IP地址并不会造成任何重大问题，直到您尝试连接到您家里的电脑从不在您的家庭网络。 With a constantly changing IP address, you will never be able to find your computer on the Internet.与不断变化的IP地址，您将永远无法找到您的电脑在互联网上。

So why would you want to find your computer on the Internet in the first place?那么，为何将您想要寻找您的计算机在因特网上摆在首位？ Well there are several reasons why it’s good to know your IP address:良好的原因有好几个，它的好，知道自己的IP地址：

1. Connect to your computer via Remote Desktop Connection and access your files 1 。连接到您的计算机通过远程桌面连接，并访问您的文件

2. Stream audio and video from your home media server to any location in the world 2 。流音频和视频从您的家庭媒体服务器的任何位置，在世界上

3. Setup your own FTP server or web server on your home PC 3 。设置自己的FTP服务器或网络服务器上您的家用PC

There are many more reasons why it could be useful to know your IP address.还有很多原因，可能是有用的知道您的IP地址。 So why doesn’t everyone have a static IP address?因此，为什么不大家有一个静态IP地址是什么？ Well, it’s basically a lot cheaper for Internet service providers to keep rotating IP addresses to their clients.那么，它基本上是有很多便宜的互联网服务提供商不断旋转的IP地址，以他们的客户。 If you want a static IP address, you will have to pay an extra monthly charge.如果您想要一个静态IP地址，你将要付出额外的每月收费。

Dynamic DNS动态DNS

That’s where dynamic DNS comes into play.这也就是动态DNS生效发挥。 Using this service, you can theoretically create a static IP address for your home computer.使用这项服务，您可以在理论上建立一个静态IP地址为您的家用计算机。 Here’s how it works.这里的如何运作。 When you visit any web site on the Internet, you can either type in the IP address or you can enter in the domain name, like Online-Tech-Tips.com.当您访问任何网站在互联网上，您可以在两种类型的IP地址或您可以输入在网域名称，如在线科技tips.com 。 There are DNS servers all over the world that keep track of which names correspond to which numeric IP addresses.有DNS伺服器世界各地都保持轨道的姓名相符，其中数字型IP地址。

When you come to Online-Tech-Tips.com, your Windows computer first looks up the IP address from a DNS server and then requests the site.当您来在线科技tips.com ，您的Windows计算机首先查找IP地址由DNS伺服器，然后请求该网站。 This is great for servers that have static IP addresses that never change, but it’s not well-suited for servers that are on home broadband connections.这是伟大的服务器有静态IP地址的表示，决不会改变，但并不是非常适合的服务器是对家庭宽带连接。 This means that your server is constantly “moving” on the Internet and it messes up the one-to-one relationship between domain names and IP addresses.这就是说，您的服务器是不断“移动”在互联网上和它的餐厅了一对一的关系，域名和IP地址。

The solution to setup dynamic DNS, whereby your server keeps track of what its current IP address is, and notifies the DNS provider whenever it changes.解决安装动态DNS ，让您的服务器会持续追踪其目前的IP位址，并通知供应商的DNS的时候改变。 In this way, you can give your home computer or server a virtual static IP address.在这种方式，您可以让您的家庭计算机或服务器虚拟的静态IP地址。 When connecting to your computer, you would either type in the domain name or you would ping the domain name to find the current IP address.当连接到您的电脑，您会在两种类型的域名，或者您会平的网域名称找到目前的IP地址。

动态DNS服务器
Image Source:图片来源： Ars Technica亚美尼亚救济协会technica

Here’sa quick overview of how dynamic DNS service works in a real example.这里的快速总览如何动态DNS服务工程，在真实的例子。 The dynamic DNS client can be considered your home PC or server and the SOHO Firewall/NAT appliance is your cable modem or router.动态DNS客户端可以考虑您的个人电脑或伺服器和苏豪防火墙/ NAT设备是您的电缆调制解调器或路由器。

How to setup Dynamic DNS如何设置动态DNS

动态DNS

The cool thing is that there are free dynamic DNS services that you can use to set all of this up.酷的事情是，有免费的动态DNS服务，您可以使用设置这一切。 My favorite by far is DynDNS, a free service which allows you to create a hostname that points to your dynamic IP or static IP address or URL.我最喜爱的远远是dyndns ，一项免费的服务，它可以让您创建一个主机点到您的动态IP或静态IP地址或URL 。

Step 1 : Create an account with 第1步 ：创建一个帐户 DynDNS dyndns and then login with your username and password once you receive the authentication email.然后登录与您的用户名和密码，一旦您收到验证电子邮件。

Step 2 : On the Account Services page, click on Add Host Services and then Add Dynamic DNS Host . 第2步 ：该帐户的服务页，点击添加主机服务，然后添加动态DNS主机 。

Step 3 : You’ll get to pick from about 88 domain names, including blogdns.com, gotdns.com, is-a-geek.com, and more. 第3步 ：您将得到回升，从约88域名，包括blogdns.com ， gotdns.com ，是一geek.com ，和更多。 Pick a domain name and then come up with a sub-domain, so you have a unique domain name like aseem.blogdns.com or akishore.is-a-geek.com.选择一个域名，然后拿出一个子网域，所以你有一个独特的域名一样， aseem.blogdns.com或akishore.is -一- geek.com 。 You will use this hostname to access your server or home computer.您将使用此主机访问您的服务器或家用电脑。 Leave the IP address field blank.离开IP地址领域的空白。

dyndns

Step 4 : Download the 第4步 ：下载 DynDNS client tool dyndns客户端工具 onto your computer or server.到您的电脑或伺服器。 This piece of software is what will automatically check to see if your computer has a new IP address and if so, will notify the DNS servers of the new IP address.这片是什么软件会自动检查，以查看如果您的电脑有一个新的IP地址如有的话，会通知DNS伺服器的新的IP地址。 Always keep it running in the background and you’ll always be able to access your computer.始终保持它在后台运行，您将可以随时访问您的计算机。

How this helps you to如何帮助您 setup remote desktop 安装远程桌面 even if you have a dynamic IP address or甚至如果你有一个动态的IP地址或 setup an FTP server 安装FTP伺服器 or Web server.或Web服务器。 Enjoy!享受！

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