DNS protocol tweaks¶
Following settings change low-level details of DNS protocol implementation. Default values should not be changed except for very special cases.
Get/set maximum EDNS payload size advertised in DNS packets. Default is 4096 bytes and the default will be lowered to value around 1220 bytes in future, once DNS Flag Day 2020 becomes effective.
> net.bufsize(4096) nil > net.bufsize() 4096
Module workarounds resolver behavior on specific broken sub-domains. Currently it mainly disables case randomization.
modules.load('workarounds < iterate')