Today we will explore the relationship between PHP and Dynamic DNS. So, first, we will explain what DDNS is and then the significance of PHP. The next step is to see where they meet each other and show how they perform.
Dynamic DNS (DDNS) – What is it?
Dynamic Domain Name System is sometimes known as Dynamic DNS (DDNS). It’s a fantastic approach to automatically and frequently update your name server. When IP addresses change, so do the A (IPv4), and AAAA (IPv6) records that are associated with them. You don’t have to spend the time and energy conducting this process manually.
Internet service providers frequently change client IP addresses (ISPs). Thus, they have a big problem managing them to ensure they don’t run out. An IP address is required for each device that connects to the network.
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PHP is a very useful programming language, and you can use it, instead of the built-in commands like the Dig command, for querying DNS records. Do you want to know how to check DNS records using PHP? It is a simple process, and there are different PHP functions that you can use. Let’s see them.
PHP functions for checking DNS records
There are several functions that can be used for checking DNS records. For example, some can check just if the DNS records exist, others serve for only a specific type of DNS record, and others can show any type.
- checkdnsrr() – This query will see if DNS records exist for the host (hostname or IP address).
- dns_get_record() – Get the DNS record for the host (hostname or IP address). It could be any type of DNS record.
- getmxrr() – Get the MX DNS records only, for the host (hostname or IP address).
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