Close #1214
Squashed commit of the following:
commit e445125556c9f9441c3d6936cb923db0a7e58260
Merge: c88b25ca 63923fa8
Author: Simon Zolin <s.zolin@adguard.com>
Date: Fri Mar 20 19:12:21 2020 +0300
Merge remote-tracking branch 'origin/master' into 1214-cache-min-ttl
commit c88b25ca4b641918f32811212c2cf3b63a5bf654
Author: Simon Zolin <s.zolin@adguard.com>
Date: Fri Mar 20 19:02:17 2020 +0300
minor
commit ec3dc21bb211941c71adcec38796eeadb978b2b7
Author: Simon Zolin <s.zolin@adguard.com>
Date: Thu Mar 19 12:18:08 2020 +0300
+ DNS: new settings cache_ttl_min, cache_ttl_max