Brian Scheewe

Brian Scheewe is CTO of Advanced Data & Network Solutions. He brings deep technical leadership to the company's work in managed IT, networking, cybersecurity, and infrastructure strategy, with a strong background in industry certifications and hands-on problem solving. Brian writes about practical IT operations, security, and the technical decisions that help businesses build more reliable systems.

Articles by this author

Insights and updates from the ADNS team.

Security

Hackers targeting HR with direct deposit change requests

Phishing is a cybersecurity attack where the perpetrator pretends to be a trusted source through an email.  The thief may masquerade as

Security

New zero-day threat - Log4j

On Friday, a vulnerability called "Log4j" that effects a large variety of consumer and business applications was revealed. This threat

Certifications

Thoughts on the Cisco ENCOR 350-401 Exam

Recently I passed the Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) exam.  Wow what a mouthful! With the current generation

Infrastructure

Recent regional and cloud outages

Within the past several weeks we've witnessed an unusually high number of outages that have impacted our clients in WNC.

Certifications

Thoughts on the Fortinet NSE7 SD-WAN certification

I just passed the Fortinet NSE7 SD-WAN certification! I prepared by using the self-paced training courses on the Fortinet Training Institute (FTI)

Uncategorized

Fortigate - DoS policy on WAN blocking VPN traffic

Applying a DoS policy on a WAN interface is a good practice that will help prevent flooding or abusive behavior from the

3CX

Configure 3CX to use both internal voicemail and 3rd party voicemail (like Exchange) simultaneously

UPDATE: 3CX version 18 has discontinued Exchange voicemail support. The steps outlined in this article will enable 3CX v18 to work with

Cisco

Network module missing after Cisco 3850 switch upgrade

We ran into an issue where a Cisco 3850 switch (3850-12X48U) lost the ability to use the its C3850-NM-8-10G network module after

Security

How to Secure RMMs

Kaseya VSA Hack On Friday, a popular IT tool called Kaseya VSA was hacked.  The exploit was a "zero day"

Cisco

ERSPAN to Wireshark -- and How to Fix if Not Working

Packet Capture on a Remote Cisco Device Typically when I need to do a packet capture on a remote Cisco IOS/IOS-XE

Certifications

What Certs Should My IT Team Have?

This post is part three to Why We Love Continuing Education and Certifications and How I Study for IT Certification Exams There&

Certifications

How I Study for IT Certification Exams

This post is a follow-up to Why We Love Continuing Education and Certifications and continues on with What Certs Should My IT

3CX

Why We Love Continuing Education and Certifications

This post is part 1 in a three part series which includes How I Study for IT Certification Exams and What Certs