Kaspersky Security Center

Access to public DNS servers

April 8, 2024

ID 242745

If access to Kaspersky servers by using the system DNS is not possible, Kaspersky Security Center can use the following public DNS servers, in the following order:

  1. Google Public DNS (8.8.8.8)
  2. Cloudflare DNS (1.1.1.1)
  3. Alibaba Cloud DNS (223.6.6.6)
  4. Quad9 DNS (9.9.9.9)
  5. CleanBrowsing (185.228.168.168)

Requests to these DNS servers may contain domain addresses and the public IP address of the Administration Server, because the application establishes a TCP/UDP connection to the DNS server. If Kaspersky Security Center is using a public DNS server, data processing is governed by the privacy policy of the relevant service.

To configure the use of public DNS by using the klscflag utility:

  1. Run the Windows command prompt by using administrator rights, and then change your current directory to the directory with the klscflag utility. The klscflag utility is located in the folder where Administration Server is installed. The default installation path is <Disk>:\Program Files (x86)\Kaspersky Lab\Kaspersky Security Center.
  2. To disable the use of public DNS, run the following command:

    klscflag -fset -pv ".core/.independent" -s Transport -n ForceUseSystemDNS -t d -v 1

  3. To enable the use of public DNS, run the following command:

    klscflag -fset -pv ".core/.independent" -s Transport -n ForceUseSystemDNS -t d -v 0

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