{"id":267,"date":"2021-08-31T07:16:26","date_gmt":"2021-08-31T07:16:26","guid":{"rendered":"https:\/\/www.practicallynetworked.com\/?page_id=267"},"modified":"2022-04-28T09:54:24","modified_gmt":"2022-04-28T09:54:24","slug":"dynamic-dns","status":"publish","type":"post","link":"https:\/\/www.practicallynetworked.com\/dynamic-dns\/","title":{"rendered":"Dynamic DNS"},"content":{"rendered":"<p><span style=\"font-family: Arial; font-size: large;\"><b>Follow the bouncing IP<\/b><\/span><\/p>\n<p>In a nutshell, dynamic DNS services (also called DNS Providers) provide a way to keep a domain name tied to a changing IP address.\u00a0 They usually do this by having you run a small program on one of your computers that is tied to the Internet.\u00a0 Each time your ISP changes the IP address that they issue to you, the program contacts the service&#8217;s computer and updates your DNS entry, keeping your domain name tied to your new IP address.<\/p>\n<p>With this service, the only data that changes when your IP address changes is the\u00a0<b><i>DNS database at the dynamic DNS provider.<\/i><\/b>\u00a0 Since the rest of the DNS servers across the Internet point your domain to the static IP address that the dynamic DNS service gave you when you signed up for the service, the change occurs very quickly.\u00a0 Instead of taking days for the world to know that your IP address changed, the dynamic DNS service reduces the process to minutes.\u00a0 This makes hosting with a changing IP address now a viable solution.<\/p>\n<p><span style=\"font-family: Arial; font-size: large;\"><b>Easy to reach<\/b><br \/>\n<\/span><\/p>\n<p>Even if you don&#8217;t want to run your own webserver, using a dynamic DNS provider can make life with a dynamic IP simpler, since there are a growing number of applications that require your computer to be contacted from the Internet:<\/p>\n<ul>\n<li>\n<p align=\"left\"><b><span style=\"font-family: Arial;\">PCAnywhere or other remote access<\/span><\/b><\/p>\n<\/li>\n<li>\n<p align=\"left\"><span style=\"font-family: Arial;\"><b>Game serving<\/b><\/span><\/p>\n<\/li>\n<li>\n<p align=\"left\"><span style=\"font-family: Arial;\"><b>Internet telephony or videoconferencing<\/b><\/span><\/p>\n<\/li>\n<\/ul>\n<p>With a domain or subdomain name and a dynamic DNS service, all you need to do is type in your domain (or subdomain) name and you&#8217;re in business!\u00a0 Your servers will now always be reachable, no matter how often your IP address changes.<\/p>\n<p><b><span style=\"font-family: Arial; font-size: medium;\">NOTES:<\/span><\/b><\/p>\n<p>&#8211; Running any sort of Internet accessible service from your computer can greatly increase your chances of getting &#8220;uninvited visitors&#8221; to your LAN.\u00a0 Be sure to read\u00a0<b><a href=\"https:\/\/www.practicallynetworked.com\/secure_server.htm\">Securing your Servers<\/a><\/b>.<\/p>\n<p>&#8211; If you need help configuring your firewall or proxy server to allow access to your servers, read<b><a href=\"https:\/\/www.practicallynetworked.com\/firewall_config.htm\">\u00a0Configure your Firewall<\/a><\/b>.<\/p>\n<p>&#8211; Some Dynamic DNS services have problems when used with a hardware router. Make sure you check with the service before you sign up to be sure that their client software will handle updating your IP address with a hardware router.\u00a0 Also check\u00a0<b><a href=\"https:\/\/www.practicallynetworked.com\/linksys-cable-dsl-router-help-basics\/#dyndns\">Linksys Router Help<\/a><\/b>\u00a0for some software that may help if you use a\u00a0<b>Linksys router<\/b>\u00a0and\u00a0<b>dyndns.org<\/b>.<\/p>\n<p><span style=\"font-family: Arial; font-size: large;\"><b>Sign me up!<\/b><\/span><\/p>\n<p>Dynamic DNS providers are relatively new and their dependability, services, and costs vary.\u00a0 So do a little homework before you buy.\u00a0 Making the wrong decision isn&#8217;t the end of the world, but changing to a new dynamic DNS provider will have the same delays as changing your DNS information with your domain registration company (see\u00a0<b><a href=\"https:\/\/www.practicallynetworked.com\/webhost\/whylong.htm\">What Takes So Long?<\/a><\/b>\u00a0for more info).<\/p>\n<p><b>highSynth<\/b>\u00a0has a page that you might want to check out that\u00a0<b>ranks DNS providers<\/b>.\u00a0 They also have a\u00a0<b>useful background article<\/b>\u00a0that&#8217;s worth checking out if you&#8217;re not clear on how all this works.\u00a0 You can also check\u00a0<b><a href=\"https:\/\/www.practicallynetworked.com\/linkswh.htm\">this page<\/a><\/b>\u00a0for links to a few top-ranked Dynamic DNS services.<\/p>\n<p>Since highSynth top-ranked\u00a0<b><a href=\"http:\/\/www.tzo.com\/\" target=\"_blank\" rel=\"noopener\">TZO.com<\/a><\/b>, we thought we&#8217;d check them out.\u00a0 You can read the\u00a0<a href=\"https:\/\/www.practicallynetworked.com\/reviews\/tzo.asp\">review of their service<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Follow the bouncing IP In a nutshell, dynamic DNS services (also called DNS Providers) provide a way to keep a domain name tied to a changing IP address.\u00a0 They usually do this by having you run a small program on one of your computers that is tied to the Internet.\u00a0 Each time your ISP changes the IP address that they issue to you, the program contacts the service&#8217;s computer and updates your DNS entry, keeping your domain name tied to your new IP address. With this service, the only data that changes when your IP address changes is the\u00a0DNS database <\/p>\n","protected":false},"author":2,"featured_media":5591,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/267"}],"collection":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/comments?post=267"}],"version-history":[{"count":1,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/267\/revisions"}],"predecessor-version":[{"id":5620,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/267\/revisions\/5620"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/media\/5591"}],"wp:attachment":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/media?parent=267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/categories?post=267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/tags?post=267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}