The TXT Record

Using DNSDB With openssl s_client To Scan A List of Hosts For Expired SSL/TLS Certificates

Wednesday, May 29, 2019 By Joe St Sauver

A typical company may have dozens or hundreds of hosts with SSL/TLS certificates. Joe shows how to use DNSDB to find expired certs for hosts under a given domain.

Automating Detection of "Random-Looking" Algorithmic Domain Names

Friday, May 17, 2019 By Joe St Sauver

In Part 1 of a 2 Part Series, Joe St Sauver discusses finding atypical domains in Farsight SIE Channel 204 traffic

Analyzing DNSDB Volume-Over-Time Time Series Data With R and ggplot2 Graphics (Part Three of a Three-Part Series)

Thursday, April 18, 2019 By Joe St Sauver

Volume-Over-Time Data From DNSDB Export MTBL Files (Part Two of Three-Part Series)

Monday, April 1, 2019 By Joe St Sauver

Looking at the volume of DNS queries over time in passive DNS can sometimes uncover unusual DNS conditions

Fighting Phishing: What You Need to Know

Monday, March 25, 2019 By Karen Burke

Why phishing attacks will continue to make headlines and what you can do to reduce the risk to your organization