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Click Here for a film explaining the process of the DNS


An oft-used analogy to explain the Domain Name System is that it serves as the phone book for the Internet by translating human-friendly computer hostnames into IP addresses. For example, the domain name translates to the addresses (IPv4) and 2001:500:88:200::10 (IPv6). Unlike a phone book, the DNS can be quickly updated, allowing a service's location on the network to change without affecting the end users, who continue to use the same host name. Users take advantage of this when they use meaningful Uniform Resource Locators (URLs), and e-mail addresses without having to know how the computer actually locates the services.The tools here are some of the most valuable OSINT tools you will use . Take time to get your head around DNS You will reap the rewards.


Here are a few tools to try out. As long as you dont ping or traceroute them at any time, it will be very difficult for the destination URL to see where they came from

Firstly, try The following are cmd entires on your computer. Try them to see what you get (safe)


Nslookup in cmd. This is basic search

Nslookup -q=mx in cmd this is mailservers

Nslookup -q=ns in cmd. This is nameserver

Nalookup -q=aaaa in cmd this is the ipv6

Nalookup -q=any in cmd this is all data


Heres a list of tools and pages that you may find useful




DNS server maps ( europe)


DNS tools




http// - who is also on the same IP - lists hacking sites and reports of website takeovers


Spamhaus - domain block list and ROKSO


Surbl - checks the integrity of a URL




Team cymru




Clean mx








Threatexpert - search any url including sub pages - Useful for ASN


Wepawet - nx record data - dir of malicious IP, drill down re co, ASN etc maltego

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