How does Ad Block block?

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Dion Warj

• July 14, 2022 04:06

How exactly does the Ad Block setting block ads? Is it by DNS?

If one is using NextDNS to block ads at the DNS Server level, is it redundant/unnecessary to enable this setting?

 

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  Firewalla

  • July 14, 2022 17:06

  Ad block is DNS + TLS blocks, they are done local on your firewalla, not through another DNS server

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  Dion Warj

  • July 14, 2022 20:04

  Is the philosophy behind it to lessen false positives (on the default level)? Is it redundant to enable this and use Nextdns (OISD filter doesn’t have false positives for instance)?

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  Dion Warj

  • July 16, 2022 23:55

  are there downsides to enabling both?

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  Firewalla

  • July 17, 2022 05:32
  • Edited

  The Firewalla Adblock happens locally on your firewalla box, meaning, DNS requests are not forwarded to any DNS server. While a DNS service, requires you to send stuff to it. This is the main difference. And it is totally OK to run both together.

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  Dion Warj

  • July 17, 2022 17:40

  Can anyone comment on if there are lots/any/many false positives with this Ad Block?

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  Dion Warj

  • July 20, 2022 10:12

  Also, is it technically slower when ad block + nextDNS is turned on (since DNS records are checked locally AND THEN sent to NextDNS)?

   

   

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  Firewalla

  • July 20, 2022 18:29

  I don't think there is a standard way to measure false positives. It really up to what you do.

  Technically, the firewalla ad blocker is faster since it is entirely local. 

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