NetFlow
Identifying, monitoring and securing BYOD traffic with NetFlow
Bring Your Own Device (BYOD) is a practice that allows users to bring their personal devices such as tablets or smartphones to the workplace...
Finding MAC addresses using Flexible NetFlow
So far, we have discussed NetFlow configuration for network devices from various vendors such as Cisco, Juniper, Huawei, VyOS. We have collected layer 3...
Web Applications compromise detection using Flow Data
Our previous article discusses flow-based SSH compromise detection. A force attack against SSH hosts consists of scan, brute-force and compromise phases that can be...
SSH Compromise Detection Using Flow Data
Secure Shell (SSH) provides a secure channel over an unsecured network in a client-server model. SSH is typically used to log into a remote...
DNS Amplification Attacks Detection with NetFlow or sFlow
The Internet we know nowadays cannot properly operate without using the Domain Name System (DNS). DNS syncs up domain names with IP addresses so...
The Difference between SNMP and NetFlow. Why should I use both?
Simple Network Management Protocol (SNMP) is a well-known standardized application layer protocol, originally developed for network management but mostly used for network monitoring. SNMP...
Automatic versus Manual NetFlow Deduplication
Duplication of NetFlow occurs when the NetFlow records about the same flow are exported multiple times to a NetFlow collector. In turn, the volume...
Exporting Flow to multiple servers (Flow Samplicators)
In our previous article we have discussed the alternative way to get flow statistics using a NetFlow generator. One of the fundamental features of...
NetFlow Generators explained
What is a NetFlow Generator?
A NetFlow generator is a dedicated network appliance or software running on a PC and listening on a single or...
Configuring NetFlow on VyOS and Huawei Network Devices
This is the second part of the post dedicated to NetFlow configuration. In the first part, we’ve discussed the configuration of Flexible NetFlow on...
