![]() Note: Use only one of these sets of addresses – secure or unsecure. If your DNS software requires a Secondary IP address, please use the unsecure secondary address of 149.112.112.10 Unsecure IP: 9.9.9.10 Provides: No security blocklist, DNSSEC, sends EDNS Client-Subnet. If your DNS software requires a Secondary IP address, please use the secure secondary address of 149.112.112.112 Secure IP: 9.9.9.9 Provides: Security blocklist, DNSSEC, No EDNS Client-Subnet sent. These might be useful for testing validation, or to determine if there are false positives in the Quad9 system. However, there are alternate IP addresses that the service operates which do not have these security features. The primary IP address for Quad9 is 9.9.9.9, which includes the blocklist, DNSSEC validation, and other security features. Is there a service that Quad9 offers that does not have the blocklist or other security? It doesn't provide the selection that OpenDSN provides via its freebie IPV4 address filtering unfortunately, but, it should keep its users out of malicious web sites. That's an IBM project in conjunction with numerous other companies to provide safe, secure address resolution and filter malicious web addresses at the same time. There is a new service that has started for IPV4 and IPV6 however, which is QUAD 9. So, if you use IPV6, OpenDNS filtering won't work, it only provides straight address resolution for IPV6 addresses. That's been a point of discussion for years now and there doesn't seem to be any impetus to make it happen. One problem however is that OpenDNS does not filter IPV6 requests. The updater, which runs in the background when the computer is up and running will keep the OpenDNS server aware of the correct IP address for your home in the event that the IP address does change at any point. I've used this for several years now, and it does work. When the updater is running, it will connect your IP address to your account, so that OpenDNS servers respond correctly to DNS requests coming from your IP address and filter the results as you have set them. That updater has an account login built into it. When that is all done, load the OpenDNS Updater from the site onto one of your computers that runs at home. You can also filter countries based on the country code. Sign up for a freebie account at OpenDNS, which allows you to set various categories to filter.
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