Posts tagged dns

The curious case of DNS and wi-fi router

Like any one with an internet connection, I have a wi-fi router at home. And if you have seen my older posts you would know that I use a DNS based ad blocker that I run on my home network. The ad blocker runs on a raspberry pi and I use its IP as the DNS server/cache in my router. I wanted to run a DNS performance test and I used the script dnsperf to do that. It basically runs a DNS query on the list of provided name servers and measures the time taken. Below are the result when running the test with my router(with IP :192.168.1.1) as the DHCP and pi(host name: pi) as the DNS server.

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My DNS stats

Like it or not humans are data generating machines. The generated data creats patterns and it may or may not be useful. In my case, I am running a DNS based adblocker that all my devices are connected to all the time. So I have a log of all my DNS requests that the devices/services/apps are making. In the past 30 days my 3 primary devices, a laptop, mobile and a tablet have made 270,563 DNS queries and the below is the split up of per device queries.

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Adblocking in the cloud

I hate ads. Don’t get me wrong. I am fine to get informative/interest based ads. It becomes a bit hard when I am hit with a bunch of irrelevant ones and the amount of tracking that happens in the background. I initially used adblock plugins on the browser - which work fine to certain extent. But if I have to block it completely I have to use a Pi-hole setup.

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