Skip to Main Content
Managing Mission - Critical Domains and DNS
book

Managing Mission - Critical Domains and DNS

by Mark E.Jeftovic
June 2018
Intermediate to advanced content levelIntermediate to advanced
368 pages
11h 1m
English
Packt Publishing
Content preview from Managing Mission - Critical Domains and DNS

Transaction ID

The transaction ID is a random number generated by the nameserver initiating the query. When the answering nameserver responds with an answer, it will set the same transaction ID. DNS cache poisoning can occur if the transaction is non-random or predictable (along with other preconditions, see the What is DNS Cache Poisoning? sidebar).

What is DNS cache poisoning?

DNS cache poisoning can occur when an attacker can trick a resolver into accepting faked data for a given query and then having the "poisoned" resolver hand that faked data out to its clients.

The risk is if somebody managed to, for example, poison your resolver into accepting forged responses from a fake authoritative nameserver for your bank. They could redirect ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide

CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide

Raymond Lacoste, Ramiro Garza Rios, Bradley Edgeworth, Jasos Gooley
Zero Trust Security: An Enterprise Guide

Zero Trust Security: An Enterprise Guide

Jason Garbis, Jerry W. Chapman
Cybersecurity - Attack and Defense Strategies

Cybersecurity - Attack and Defense Strategies

Yuri Diogenes, Dr. Erdal Ozkaya

Publisher Resources

ISBN: 9781789135077Other