ip address - ip blocking someone with dynamic dns -

So I'm trying to think about an IP blocking system, and I think I'm one of the taboo eps The list can be stored on the database and preventing people from reaching the site using those people using php or something else ...

But then how do I effectively dynamically with dynamic IP addresses from DNS Handle those people?

Any good suggestions?

Dynamic DNS (fakepc.dyndns.org) has the ability to register its numerical counter-computer-voluntary IP address (127.127.127.127) Every time it changes, a special voluntary DNS constant 'under friendly name'. This allows you to find the numeric IP address of a specific computer as it moves around it, considering that the irreversible DNS 'friendly name'.

Dynamic DNS is unrelated to your goals for any traditional functioning web browser for blocking systems. Dynamic DNS is not enabled in most populations. If they do, they can use multiple computer / IP addresses with the same DNS address ... or Convert DNS will not really help you to establish identity for users. Even when a person has a consistently-applied dynamic DNS name, a web server generally can not determine what it is. By this, I mean that your server can not change the dynamic DNS address from the IP address, only in another way.

The IP address itself can change on time, but it is generally preferred by the user (instead, for example, after months-long period of inactivity with ISP). Definitely the average user will see a fairly consistent IP address associated with all the PCs in your home from the month of the month. However, I can take my laptop and go to Starbucks, I will get a separate IP and if I clear all my browser cookies, etc. You can not tell that it is without my personal identity.

The network service that provides the IP address dynamically is 'DHCP'.

At the end of the day, the IP address is not a good anti-blocking strategy, but only if you resolve the false positive and false negative from any automatic IP address blocking system will be appropriate for your solution .

You may get more benefit from the automated whitelist system using IP addresses instead of a blacklisting system, if your goal is to reduce the efforts of users who prove goodwill in time.