Douglas Blaine » Ip Address Reverse Lookup http://vendo-me.com/douglasblaine Wed, 18 May 2011 17:20:40 +0000 en hourly 1 http://wordpress.org/?v=3.3.2 What Is a Reverse Lookup? http://vendo-me.com/douglasblaine/2011/04/14/what-is-a-reverse-lookup/ http://vendo-me.com/douglasblaine/2011/04/14/what-is-a-reverse-lookup/#comments Thu, 14 Apr 2011 03:27:20 +0000 watarlacax http://vendo-me.com/douglasblaine/2011/04/14/what-is-a-reverse-lookup/ What Is a Reverse Lookup? Reverse DNS lookup involves finding the domain name associated with an IP address. These are sets of four numbers which fall in the range of 0 to 255 and are separated by periods. Each computer has a unique IP address, much like social security numbers for humans. A reverse look up involves feeding this address into a database, which then matches it against a collection of domain name registries and finds out the particular registry registry associated with that particular IP address. The Internet’s reverse DNS database is based in the Address and Routing Parameter Area (arpa) highest level domain of the internet. IP addresses are of two types namely, IPv4 and IPv6. Reverse lookups for both of these involve using different techniques as they both have special domains. Although reverse lookups work for almost all IP inputs but their credibility is not assured because spammers may disguise their IP addresses. Also, it doesn’t work for all IP addresses because just like unlisted telephone numbers, unlisted IP addresses have no visible registries attached to them.

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]]> http://vendo-me.com/douglasblaine/2011/04/14/what-is-a-reverse-lookup/feed/ 0 Can you trace the origin of an e-mail message? http://vendo-me.com/douglasblaine/2011/03/22/can-you-trace-the-origin-of-an-e-mail-message/ http://vendo-me.com/douglasblaine/2011/03/22/can-you-trace-the-origin-of-an-e-mail-message/#comments Tue, 22 Mar 2011 13:49:12 +0000 watarlacax http://vendo-me.com/douglasblaine/2011/03/22/can-you-trace-the-origin-of-an-e-mail-message/ Jesse Lindmar, Assistant Director of Computer Forensics for Sensei Enterprises, Inc. answers the frequently asked question, Can you trace the origin of an e-mail message? The answer is, to a point but after that, there are legal issues. To learn more, watch the video then call Sensei at 703-359-0700.

http://www.youtube.com/watch?v=ZA0gkC8QPNY&hl=en

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]]> http://vendo-me.com/douglasblaine/2011/03/22/can-you-trace-the-origin-of-an-e-mail-message/feed/ 0 DNS Windows 2003 Server http://vendo-me.com/douglasblaine/2011/03/20/dns-windows-2003-server/ http://vendo-me.com/douglasblaine/2011/03/20/dns-windows-2003-server/#comments Sun, 20 Mar 2011 05:20:24 +0000 watarlacax http://vendo-me.com/douglasblaine/2011/03/20/dns-windows-2003-server/ Configuring DNS (Domain Name Prefix) Installing DNS Service. Configuring Forward / Reverse Lookup. Configuration and verification of TCP / IP. Domain Naming Prefix: Is the default domain name used only When the hostname is given. In order for Dynamic Domain Naming Server (DDNS) to Work Correctly, you must have the prefix preconfigured. By default, the prefix is not set. Forward Lookup Zone: Used to resolve the FQDN (ie dc01.nunes.local) to an IP address (ie 192.168.1.5). Reverse Lookup Zone: Used to resolve an IP address to FQDN, and is used for troubleshooting purposes.

http://www.youtube.com/watch?v=IvdnUq4XoFs&hl=en

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