NetFlow
Questions to ask a NetFlow Vendor Before you Buy
Network visibility is crucial because we cannot manage and secure what we cannot see. NetFlow plays a critical role in traffic visibility by helping...
NetFlow and BGP
Border Gateway Protocol (BGP) is a core routing protocol used by most of the Internet Service Providers (ISPs). BGP’s role is to exchange routing...
Network Traffic Analysis and Alerting based on NetFlow
This article gives some insights on how to set up a network traffic monitoring and alerting system based on NetFlow. NetFlow is an advanced...
SD-WAN and NetFlow
Software-Defined Networking (SDN) in a Wide Area Network (WAN) - SD-WAN is a technology that simplifies management of WAN by decoupling control plane from...
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...
