This document will guide you through the process of leveraging programmable rules in ADS to customize your protection capabilities. Unlike static solutions, the programmable defense allows you to create custom rules and policies that respond to attacks in real time, providing more precise and effective protection. NSFOCUS ADS has incorporated this functionality in its F05 […]
An NTP amplification attack is a reflection-based volumetric distributed denial-of-service (DDoS) attack in which an attacker exploits a Network Time Protocol (NTP) server functionality to overwhelm a targeted network or server with an amplified amount of UDP traffic, rendering the target and its surrounding infrastructure inaccessible to regular traffic. An NTP amplification attack can be […]
This article provides a brief explanation of policy fine-tuning in ADS. Please note that fine-tuning the protection policy is a time-consuming process. This article focuses on how to check attack details in ADS based on attack events and optimize policies accordingly. Due to different versions of ADS, the screenshots shown in the article may differ […]
This article summarizes the preparation configuration of ADS diversion. The specific configuration details may vary depending on the information of the ADS on the client side, router information, and ADS version. The configuration content and order can be referenced from this article. 1. Before configuring diversion, it is necessary to configure IP address information on […]
If the virtual product uses cloud authentication, it needs to communicate with the cloud authentication center periodically every day to complete the authentication and ensure availability. You can confirm the authorization mode by checking the Authorization Mode of the license. For example, in the image below, NTA uses cloud authorization. If the product fails to […]
In the 24-Hour Traffic graph under Logs -> Logs Analysis > Attack Traffic Statistics of ADS, you will find the graph displaying three lines: ALL_RX_MAX (represented by the red line), ALL_RX (represented by the green line), and ALL_TX (represented by the blue line). The explanation of each line is: It’s important to note that the […]
When NTA detects abnormal traffic, it can notify ADS to divert the traffic. ADS sends route diversion notifications to the router, redirecting the traffic to ADS for cleaning. Based on this scenario, this article will summarize troubleshooting directions when traffic is not successfully diverted to ADS. 1. Check whether automatic diversion is triggered. You can […]
Function Description For HTTPS application layer protection, ADS establishes a TLS connection with a client in replace of the server, and then authenticates the client through the application-layer protocol HTTP. If the client properly responds to the HTTP packet from ADS, ADS deems this client reliable and will add it to the trust list so […]
Configuration backup is important in many scenarios: Next, we will provide a step-by-step guide on performing configuration backup individually for ADS, ADSM, and NTA. ADS ADS supports one-click export of the current configuration. Click Export on ADS System > Local Settings > Configuration File Management to download configuration files directly: Pay attention to the following […]
HTTP Keyword Checking is a process by which ADS controls HTTP traffic through the ADS device. In addition, ADS takes a specific action (Accept, Drop, Disconnect, Add to blacklist, Add to whitelist, or Limit rate) as configured on passing packets whose source IP address and specific fields match the HTTP Keyword Checking rule. HTTP Keyword […]
