Problem exist with Ubuntu 19.10
The netplan configuration below just works
then after some time (I can't say when) it just stops resolving.
executing netplan apply make the DNS resolution work again.
----------------------------------------------
root@nas:/home/ff# nslookup www.cisco.com
Server: 127.0.0.53
Address: 127.0.0.53#53
** server can't find www.cisco.com: SERVFAIL
root@nas:/home/ff# netplan apply
root@nas:/home/ff# nslookup www.cisco.com
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
www.cisco.com canonical name = www.cisco.com.akadns.net.
www.cisco.com.akadns.net canonical name = wwwds.cisco.com.edgekey.net.
wwwds.cisco.com.edgekey.net canonical name =
wwwds.cisco.com.edgekey.net.globalredir.akadns.net.
wwwds.cisco.com.edgekey.net.globalredir.akadns.net canonical name =
e2867.dsca.akamaiedge.net.
Name: e2867.dsca.akamaiedge.net
Address: 104.69.84.242
Name: e2867.dsca.akamaiedge.net
Address: 2a02:26f0:e1:391::b33
Name: e2867.dsca.akamaiedge.net
Address: 2a02:26f0:e1:381::b33
----------------------------------------------
network:
ethernets:
eth0:
dhcp4: no
eth1:
dhcp4: no
eth2:
dhcp4: no
eth3:
dhcp4: no
bridges:
br0:
interfaces: [eth0, eth1, eth2, eth3]
macaddress: 00:51:82:f1:f0:02
dhcp4: no
addresses: [192.168.0.32/24]
gateway4: 192.168.0.2
nameservers:
addresses: [192.168.0.2]
version: 2
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https://bugs.launchpad.net/bugs/1624320
Title:
systemd-resolved appends 127.0.0.53 to resolv.conf alongside existing
entries
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