It seems that on newer Linux systems you can no longer check the DNSs by doing cat /etc/resolv.conf. It is now done by systemd-resolve --status.Below is an example output of that command:user@user:~$ systemd-resolve --statusGlobal          DNSSEC NTA: 10.in-addr.arpa                      16.172.in-addr.arpa                      168.192.in-addr.arpa                      17.172.in-addr.arpa                      18.172.in-addr.arpa                      19.172.in-addr.arpa                      20.172.in-addr.arpa                      21.172.in-addr.arpa                      22.172.in-addr.arpa                      23.172.in-addr.arpa                      24.172.in-addr.arpa                      25.172.in-addr.arpa                      26.172.in-addr.arpa                      27.172.in-addr.arpa                      28.172.in-addr.arpa                      29.172.in-addr.arpa                      30.172.in-addr.arpa                      31.172.in-addr.arpa                      corp                      d.f.ip6.arpa                      home                      internal                      intranet                      lan                      local                      private                      testLink 3 (wlp4s0)      Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6       LLMNR setting: yesMulticastDNS setting: no      DNSSEC setting: no    DNSSEC supported: no         DNS Servers: fe80::e695:6eff:fe40:9af2          DNS Domain: lanThe description states:--statusShows the global and per-link DNS settings in currently in effect.What does the Global section represent, what to those addresses represent and how are they related to DNSs?
Interpreting the output from systemd-resolve --status
systemd;dns