Performance Benchmark Analysis of Egress Filtering on Linux

Traffic filtering is a common technique used to protect networks and hosts from malicious activity. The filtering can be done in the incoming and outgoing flows, better known as ingress and egress filtering. There are many examples of use cases for ingress filtering: mitigating DDoS attacks, avoiding SPAM, blocking access to services for specific geographic […]

Traffic filtering is a common technique used to protect networks and hosts from malicious activity. The filtering can be done in the incoming and outgoing flows, better known as ingress and egress filtering. There are many examples of use cases for ingress filtering: mitigating DDoS attacks, avoiding SPAM, blocking access to services for specific geographic regions and so on.
One common application of egress filtering is to prevent applications and users from reaching remote hosts.
Source: Kinvolk