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What is loopback IP address?

What is loopback IP address?

The loopback IP address is the address used to access itself. The IPv4 designated 127.0.0.1 as the loopback address with the 255.0.0.0 subnet mask. A loopback interface is also known as a virtual IP, which does not associate with hardware interface. On Linux systems, the loopback interface is commonly called lo or lo0. The corresponding... Read More »

Public and Private IP Addresses

Public and Private IP Addresses

In order to maintain uniqueness within global namespace, the IP addresses are publicly registered with the Network Information Center (NIC) to avoid address conflicts. Devices that need to be publicly identified such as web or mail servers must have a globally unique IP address, and they are assigned a public IP address. Devices that do... Read More »

What is IP Address?

What is IP Address?

Internet Protocol Address (or IP Address) Internet Protocol Address (or IP Address) is an unique address that computing devices use to identify itself and communicate with other devices in the Internet Protocol network. Any device connected to the IP network must have an unique IP address within its network. An IP address is analogous to... Read More »

How does IP-based geolocation work?

How does IP-based geolocation work?

ARIN Whois database provides a mechanism for finding contact and registration information for IP resources registered with ARIN. The IP whois information is available for free, and determining the country from this database is relatively easy. When an organization requires a block of IP addresses, a request is submitted and allocated IP addresses are assigned... Read More »

How accurate is IP-based Geolocation?

How accurate is IP-based Geolocation?

Accuracy of geolocation database varies depending on which database you use. For IP-to-country database, some vendors claim to offer 98% to 99% accuracy although typical Ip2Country database accuracy is more like 95%. For IP-to-Region (or City), accracy range anywhere from 50% to 75% if neighboring cities are treated as correct. Considering that there is no... Read More »

Where can I get a IP-based Geolocation database?

Where can I get a IP-based Geolocation database?

There are a number of commercially available geolocation databases, and their pricing and accuracy may vary. Ip2location, MaxMind, Tamo Soft and IPligence offer a fee based databases that can be easily integrated into an web application. Most geolocation database vendors offers APIs and example codes (in ASP, PHP, .NET and Java programming languages) that can... Read More »