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February 22, 2007 by IP Location · 4 comments

What is a Subnet Mask?

address and the host address. A subnet mask separates the IP address into the network and host addresses (<network><host>). Subnetting further divides the host part of an IP address into a subnet and host address (<network><subnet><host>) if additional subnetwork is needed. Use the Subnet Calculator to retrieve subnetwork inform...

Network

February 16, 2007 by IP Location

What Is an IP Address? IPv4, IPv6, Public and Private IPs Explained

An IP address is the network identifier that lets devices, routers, servers, and websites exchange traffic. Learn how IPv4, IPv6, public, private, static, and dynamic IP addresses work.

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November 12, 2006 by IP Location

Email Delivery Problems Explained

With ever growing number of spam emails flooding the Internet, more and more ISPs tighten their email filtering system to prevent spams delivered to their clients. It is virtually impossible to block even 50% of the spams arriving in a mail server, and there will always be false positives (legitimate emails filtered as spams). In an effort to reduce spam ema...