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Why static IP address is needed instead of dynamic IP address for running a webserver?

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Why static IP address is needed instead of dynamic IP address for running a webserver?

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Festy Biola

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If you are talking about running something like apache on a computer at your house and having it accessible from the internet then you will either need a static IP or a dynamic DNS. With a static IP your IP never changes hence your computer will always be found at the IP that your Domain points to. If you have a dynamic IP then after about three days your IP will change and you will need to update your domain settings which in return will take upto 48 hours to update across the internet and then also added with peoples cache that might not update for a longer time. You options with a dynamic Ip are to use a service like https://www.dyndns.com/ or contact people accessing your website and supply them with the latest IP address of your internet connection. If you are talking about running an internal intranet/web server then your local computers will have the same issue unless they access your website by your computers name.

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While the other answers are good they assume a certain level of knowledge. The answer revolves around name resolution. When you type a URL into your browser (www.microsoft.com for instance) the system does not know how to get there. It’s like saying “meet me at Chuck’s house” but the other person doesn’t know how to get there. The system sends out a packet to a DNS server (which is specified in the network properties). This stands for Domain Name Resolution and resolves a name to an address. It’s similar to a phonebook in that a person can then look up Chuck’s address and can then know how to get there. What is returned from the DNS server is an IP address (or several, but how that works is beyond this discussion). The browser than takes this address and uses it to contact the named server. If the IP address is dynamic, meaning it changes periodically, you have a problem: DNS entries are static on the assumption that a server’s IP address doesnt’ change very much, That is, if Chuck liv

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