DDoS Resiliency Workshop – 2022

Revised, Updated, and Enhance DDoS Resiliency Workshops for Today’s Internet In the late 1990s, several people started teaching ISPs how to protect their networks from attack. These early “DDoS Resiliency Workshops” evolved in a consistent theme and method that eventually curated best common practices for DDoS resiliency. Unfortunately, the threats from attacks to Communications Services

Bad Guys are Scanning Your Network!

Bad guys are scanning your network. They are finding all the vulnerabilities exposed to the Internet. The vulnerable systems, critical devices, and other ways to break into your network. When ransomware, malware, botnets, and other break-ins happen, people wonder, “how did the threat actors find that service?” People thought that “if we don’t publish it, Read More

Open SMTP (Email) Servers on Your Network

Do you know if you have open SMTP servers on your network? In May, Qualys released 21 vulnerabilities to Exim (see Qualys Security Advisory 21Nails: Multiple vulnerabilities in Exim). Exim is a popular Mail Transfer Agent (MTA) available on Unix operating systems and comes pre-installed on Linux distributions. The easy access and wide SMTP/Exim MTAs use Read More

Protecting your Domain Names: Taking the First Steps

Protecting your domain names is often overlooked, ignored, and neglected. Everyone and everything on the Internet depends on the Domain Name System (DNS) being functional. The DNS has been a common vector for attacks in recent years. Attacking DNS will continue in the future. The 2019 DNSpionage Campaign and Sea Turtle attacks were wake calls