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Not sure about now, but before I'm using pihole, I was using hosts file to block ads and found a significant increase in network latency. Turns out the huge hosts file significantly increased DNS lookup time in my system (>1 seconds).


"I was using hosts file to block ads and found a significant increase in network latency"

I ran in to a similar issue on Windows, which is described here: [1]

After following that article's suggestion to disable the Windows "DNS Client" service name resolution returned to normal.

[1] - https://tinyapps.org/blog/201809300700_large_hosts_file.html


It was on mac. I guess it didn't go as bad as windows, but still pretty bad.




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