Tags Posts tagged with "NetFlow"

NetFlow

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...

Compromise detection

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

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...

The Internet we know nowadays cannot properly operate without using the Domain Name System (DNS). DNS syncs up domain names with IP addresses so...

SNMP Netflow

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...

Flow 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...

NetFlow Samplicator

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

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...

NetFlow on VyOS

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...

Flexible NetFlow Configuration

One of our recent blog posts dedicated to NetFlow technology provides the necessary knowledge needed to understand NetFlow principles and what it is used...


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