Recently I’ve had many requests from customers who upgraded to the Catalyst 9500 series and are looking for a NetFlow configuration document. So I’ve put together this guide for configuring FNF (Flexible NetFlow). … [Read more...] about Cisco Catalyst 9500 Flexible NetFlow Configuration
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Creating a secure IoT environment
With global IoT product adoption continuing to grow, many organizations are trying to tackle the challenge of allowing these devices in while maintaining a strong security posture for the business. How businesses do this varies, but there is some good news for … [Read more...] about Creating a secure IoT environment
Deploying Scrutinizer in Azure
I’ve heard Azure used quite a bit lately as a place to host and manage virtual machines. Azure launched console access in March of 2018. Since then, deploying VMs that require initial setup has become much easier. Now, even though Azure is not a Scrutinizer … [Read more...] about Deploying Scrutinizer in Azure
Configuring an ERSPAN within VMware and Cisco Switches
With the ever-growing support for flow exports, the need for probes and port mirroring has become a lot more limited. There are certain environments where it’s a requirement, however, and physically impossible to position a probe near a device that we want to … [Read more...] about Configuring an ERSPAN within VMware and Cisco Switches
How to Configure Meraki for SNMP Polling
SNMP, also known as Simple Network Management Protocol, can be a network admin’s best friend. With the ability to pass SNMP information to other devices and monitoring tools, we can easily identify a device instead of having to stop and run an nslookup. A … [Read more...] about How to Configure Meraki for SNMP Polling
Why ERSPAN is Important for Network Security
Enterprises are seeking a secure monitoring solution that performs encapsulation. Encapsulated Remote SPAN (ERSPAN) identifies visibility gaps and vulnerabilities, but using it enables flow data to passively monitor on one or more ports or VLANs, and then … [Read more...] about Why ERSPAN is Important for Network Security
The dangers of IoT devices and what you should know
IoT devices are dangerous! Now, I know what you are thinking, “Justin, IoT devices provide convenience and make many mundane parts of life so much more interesting.” Consider, however, that many of the IoT devices on the market are designed with little care or … [Read more...] about The dangers of IoT devices and what you should know
Real-Time DDoS Detection & Analysis
DDoS attacks have plagued the network security space for almost 20 years. In that time, we have seen a lot of changes. In just 2018 alone, we saw the first multi-terabyte/s DDoS attacks, which have been bringing large organizations to their knees. If you … [Read more...] about Real-Time DDoS Detection & Analysis
Cisco ASA Access List Reporting
If you are ever out to dinner with friends talking about which network devices have the strangest exports, the Cisco ASA will certainly be near the top of the list. The ASA is truly unlike any other firewall in what it can export in its NetFlow Secure Event … [Read more...] about Cisco ASA Access List Reporting
The Top 7 Network Security Predictions for 2019
After you celebrate New Year’s Eve, it is time to get to work on those New Year's resolutions! It is also a good time to reflect, prepare for new challenges, and brush up on security threats to watch out for. In 2019, we expect new technologies and channels to … [Read more...] about The Top 7 Network Security Predictions for 2019
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