Overview of DNS Filtering

Definition

The DNS filtering function filters domain names in DNS request packets to allow or prohibit users' access to certain websites, regulating their Internet access behavior.

Objective

With the rapid development of Internet applications and the popularity of computer networks, information acquisition, sharing, and dissemination have become more widespread than ever, which brings unprecedented threats to enterprises.

• Visiting non-work-related websites during working hours reduces work efficiency.
• Visiting illegitimate or malicious websites may result in information leaks and threats such as worms, viruses, and Trojan horses.
• When the intranet is congested, employees may be unable to access work-related websites, such as the company homepage and search engine, deteriorating working efficiency.

DNS filtering allows you to manage users' Internet access behavior on an individual basis, by user or user group, by time range, and through the security zone.