In the new Linux, NetworkManager ignores DNS and rewrites resolv.conf what to do?
It turned out to be very difficult, many put bind9 or dnsmasq, they set up a long time
but the cunning NetworkManager takes and writes to resolv.conf for example nameserver 127.0.1.1 or 127.0.0.53 — where it takes them at all is not clear, it seems by random law because with one flash drive put Lubuntu Linux on one computer — vylazit 127.0.0.53 and on the other 127.0.1.1
The behavior of Linux is similar to a virus if the address was of course not 127 and yet any. A whole day was tormented with hapless programmers who have recently been trying to make from a hard and understandably customizable Linux — what kind of self-programming Windows!
It helped write in the section of the file /etc/NetworkManager/NetworkManager.conf
[main] plugins = ifupdown, keyfile
dns = none
then NetworkManager became even though to register in resolv.conf what we write in the interface settings via the desktop applet, although so, well Further dig did not work! http://sys-admin.org/virus-v-linuks-networkmanager-ignoriruet-dns-i-perezapisy-vaet-resolv-conf/