Introduction to SYN Flood A three-way handshake is required to establish a TCP connection. First, the client sends a TCP SYN packet to the server. The server responds to the client request with an SYN-ACK packet. Then the server waits and expects an ACK packet from the client. At this...
Category: ADS
Global Threat Intelligence Function of NSFOCUS ADS
Powered by NSFOCUS Threat Intelligence (NTI), NSFOCUS ADS can block IP addresses that pose serious threats and high risks. To ensure data reliability, ADS updates intelligence data daily and provides available update time frames for users to select. For the purpose of preventing IP blocking by mistake, you can configure...
Will the device restart after importing the license for ADS, ADS M, and NTA?
Upon successful import of the new license: The ADS services will be restarted. It will not cause any interruption to your business operations. The ADS M services will be restarted. It will not cause any interruption to your business operations. The NTA system be restarted. It may cause a brief...
Packet Forwarding Mode
The packet Forwarding Mode is mainly used for debugging network faults. If this function is enabled, it indicates that the ADS device will directly forward network packets without any checks. The Packet Forwarding Enable feature can be reminded through the ADS webpage if this function is enabled. If you want...
Troubleshooting of Failure to Import a License into NSFOCUS ADS
After ADS is installed, you must import a license before using it. License types vary a bit for hardware devices and virtual devices: Hardware device: License types include Trial, Temporary Sales, and Perpetual. Virtual device (vADS): License types include Trial, Temporary Sales, Perpetual, and Subscription. ADS will provide limited functions...
SSL Certificate Replacement on NSFOCUS ADS
A Secure Sockets Layer (SSL) certificate is digitally signed and issued by a trusted certificate authority (CA) to an organization for authentication of server identities and encryption of data in transit. Therefore, SSL certificates can protect user privacy and information security. For a website with an SSL certificate issued by...
