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Angry IP Scanner

Fast and friendly network scanner


Angry IP Scanners displays hostnames returned by your DNS (name) server, by doing a reverse lookup. The server is provided the IP address and returns the hostname if it knows it.

If some computer knows its own name, it doesn’t mean that it has provided it the the network’s DNS server. In other words, the name of the host as it knows it itself (the local name) and the name attached to the IP address (the global name) as it known by the DNS server may not always match.

Very often, DNS queries will return some generic names, e.g. ‘‘’’, especially in ISP networks.

The names match in either of these cases: