Join The Global Passive DNS (pDNS) Network Today & Gain Effective Tools To Fight Against Cyber Crime
Why contribute passive DNS data to ISC?
Vetted organizations are invited to join the pDNS network by configuring their DNS infrastructure to be a passive DNS sensor (pDNS). Once you join, your system becomes a part of the global pDNS network, helping to fight against cybercrime gaining you access to new and effective tools.
Passive DNS is a very scalable network design and has minimal operational impact. As an additional bonus for participating, all vetted organizations that contribute Passive DNS will have access to the DNS Database (DNSDB) at the ISC Security Information Exchange (SIE) – an investigative tool that we use to analyze the cyber-criminal’s use of DNS. By participating in this effort, you are expanding the data collected, thereby enabling greater insights into how the cyber-criminals are using DNS to exploit the Internet.
What is Passive DNS?
"Passive DNS" or "passive DNS replication" is a technique invented by Florian Weimer in 2004 to opportunistically reconstruct a partial view of the data available in the global Domain Name System into a central database where it can be indexed and queried.
Passive DNS databases are extremely useful for a variety of purposes. Malware and e-crime rely heavily on the DNS, and so-called "fast flux botnets" abuse the DNS with frequent updates and low TTLs. Passive DNS databases can answer questions that are difficult or impossible to answer with the standard DNS protocol, such as:
Passive DNS Data Collection
DNS Database (DNSDB)
How to Participate?
If you are interested in operating a passive DNS sensor on behalf of ISC, please see the following article: https://kb.isc.org/article/AA-00535. If you are interested in using the DNSDB search interface, please fill out an account application on the DNSDB website: https://dnsdb.isc.org/#Apply.
SIE DNS sensor packages:
Papers and Materials:
- BIND 10
- Other Software Projects
- security advisories
- software forums
- ABOUT ISC