dns queries

How to Disable Client-Side DNS Caching in Windows XP and Windows Server 2003

Windows contains a client-side Domain Name System (DNS) cache. The client-side DNS caching feature may generate a false impression that DNS “round robin” is not occurring from the DNS server to the Windows client computer. When you use the ping command to search for the same A-record domain name, the client may use the same IP address. [...]

A Brief to DNS Caching

Every time your web browser wants to load a web page, it needs to contact a DNS server first, which will translate thewww.domain.com address into a machine readable format – the IP address. The same thing happens when PostCast Server tries to send a message to a recipient. The domain name in the e-mail address is [...]

OpenDNS – The most powerful Free DNS Service

Like many people, I use OpenDNS on my office network. It is a free DNS service that translates the URLs of Web pages into IP addresses. OpenDNS theoretically helps speed up Web browsing by using better DNS servers to resolves URLs faster than your Internet Service Provider (ISP). The increase is probably too small for [...]