At the beginning (2006) dnsmasq used very naive O(n^2) &#x2F;hosts parsing procedure. I was the first person ever to attempt using dnsmasq to block ads :-)<p><a href="http:&#x2F;&#x2F;lists.thekelleys.org.uk&#x2F;pipermail&#x2F;dnsmasq-discuss&#x2F;2006q4&#x2F;000937.html" rel="nofollow">http:&#x2F;&#x2F;lists.thekelleys.org.uk&#x2F;pipermail&#x2F;dnsmasq-discuss&#x2F;200...</a>