Hi Dan,
first of all thank you for your time!!!
I added the "nameserver 8.8.8.8" line to the
/etc/resolvconf/resolv.conf.d/head and it adds this line to the
/etc/resolv.conf file
I removed the 8.8.8.8 line, restarted the computer and I have internet.
--------
$ ls -l /etc/resolv.conf
lrwxrwxrwx 1 root root 29 Aug 4 2016 /etc/resolv.conf ->
../run/resolvconf/resolv.conf
$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
# 127.0.0.53 is the systemd-resolved stub resolver.
# run "systemd-resolve --status" to see details about the actual nameservers.
nameserver 127.0.0.53
search home
$ systemd-resolve --status
Global
DNS Domain: home
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
test
Link 5 (virbr0-nic)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 4 (virbr0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 3 (wlp2s0)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 2 (eno1)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 195.34.133.21
212.186.211.21
DNS Domain: home
$ grep . /run/resolvconf/interface/*
nameserver 127.0.0.53
search home
$ SYSTEMD_LOG_LEVEL=debug systemd-resolve google.com
Bus n/a: changing state UNSET → OPENING
Bus n/a: changing state OPENING → AUTHENTICATING
Resolving google.com (family *, interface *).
Bus n/a: changing state AUTHENTICATING → HELLO
Sent message type=method_call sender=n/a destination=org.freedesktop.DBus
path=/org/freedesktop/DBus interface=org.freedesktop.DBus member=Hello cookie=1
reply_cookie=0 signature=n/a error-name=n/a error-message=n/a
Got message type=method_return sender=org.freedesktop.DBus destination=:1.133
path=n/a interface=n/a member=n/a cookie=1 reply_cookie=1 signature=s
error-name=n/a error-message=n/a
Bus n/a: changing state HELLO → RUNNING
Sent message type=method_call sender=n/a destination=org.freedesktop.resolve1
path=/org/freedesktop/resolve1 interface=org.freedesktop.resolve1.Manager
member=ResolveHostname cookie=2 reply_cookie=0 signature=isit error-name=n/a
error-message=n/a
Got message type=method_return sender=:1.1 destination=:1.133 path=n/a
interface=n/a member=n/a cookie=15 reply_cookie=2 signature=a(iiay)st
error-name=n/a error-message=n/a
google.com: 172.217.21.110
-- Information acquired via protocol DNS in 13.3ms.
-- Data is authenticated: no
Bus n/a: changing state RUNNING → CLOSED
--------
it seems the problem is solved.
The question is whether the patch/fix/change is included into that ISO file
which is used for upgrading the older ubuntu releases to the 18.04?
I had many updates the last year, but the origin of the problem was that I
couldn't connect to the internet right after the upgrade and this way I
couldn't update any packages or configuration..
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to resolvconf in Ubuntu.
https://bugs.launchpad.net/bugs/1816530
Title:
DNS servers are not being set in the system correctly when you upgrade
from 16.04 to 18.04
Status in resolvconf package in Ubuntu:
Incomplete
Bug description:
I upgraded my 16.04 to 18.04 before the official release. After the
upgrade I noticed that I don't have internet access. The wired network
and the wifi settings looked good, but the internet didn't work. After
the login the system always switched itself into airplane mode. I
tethered the network via USB and Bluetooth by my mobile but they also
didn't work.
I found a useful answer from @andrew-woodhead666:
https://answers.launchpad.net/ubuntu/+question/665374
it seems this bug is still not fixed for the upgraded dists in the main
release and affects a few dozens of ubuntu users.
https://askubuntu.com/questions/1021884/no-internet-after-upgrade-from-16-04-to-18-04
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1816530/+subscriptions
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