EXPERT RESPONSE
You need Dynamic DNS. DNS (Domain Name System) stores
mappings between domain names, such as techtarget.com, and its
corresponding IP address, 65.214.43.37 in this case. The idea
is that names such as techtarget.com are easier for humans to
remember and work with than the associated IP address. In the
normal case of a site with a static (fixed) IP address, the
domain-to-IP address mapping is entered into DNS and rarely requires any further
attention from the site operator. Sites with dynamic IP
addresses, such as those provided by Cable/DSL ISPs to home users,
have to deal with the fact that their IP address (and thus the
domain-to-IP address mapping) can change frequently.
The problem of frequently changing IP addresses is handled nicely with
Dynamic DNS, a service available for free or at
nominal cost by
several providers. With Dynamic DNS, the site with the dynamic
IP address runs a small script or program that monitors the site's
IP address and notifies the Dynamic DNS provider when it changes.
The provider updates its DNS mappings on the fly, so that users
can still find the site after an IP address change. Note that
the Dynamic DNS providers are usually distinct from the ISP and
can therefore work well with your customer's current network environment.
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