#1956 Squashed commit of the following: commit efeacd92b8b82a9a0a0cce8c5648f2d024b4bc9e Author: Simon Zolin <s.zolin@adguard.com> Date: Tue Aug 18 13:54:15 2020 +0300 * DNS: resolve host names from DHCP: improve . Require a valid host name from DHCP lease . Use lower-case names