I have recently come across the following configuration of /etc/resolv.conf which is/was supposed to increase the speed of DNS resolution:
nameserver 18.104.22.168 nameserver 22.214.171.124 nameserver 126.96.36.199 option rotate option timeout:1
I have the "option" flags in mind obviously apart from using 3 DNS servers in the config (usually only two are being used). The first one is supposed to rotate/round-robin across all 3 DNS server and the last one is supposed to set the lookup timeout to 1s (default is apparently 5s). I'm just wondering whether any of you is using this configuration and whether you are seeing any improvements ? Some people are saying that this won't help with the improvements at all but I'm not really sure why.