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Description: Ubuntu 18.04 LTS
Release: 18.04
I am running a clean install of Ubuntu 18.04.
This bug was also present for me on a clean install of Ubuntu 17.10 and I had a
solution, but it appears to no longer work.
What I expect to happen: Ping other hosts on network by name
What happened instead:
I can't ping other machines on network via name.
>From my Ubuntu 18.04 machine, I `ping ubuntu-test-1` and `ping
>ubuntu-test-1.localdomain` but neither work. I can ping by IP address though.
The other machines on the network are Ubuntu Server 16.04.3 machines and
can ping each other by name also.
All machines on network including problem one receive DHCP leases from
same server (192.168.20.1)
I believe the problem is systemd-resolved stub resolver.
`cat /etc/resolv.conf`
# This file is managed by man:systemd-resolved(8). Do not edit.
#
# This is a dynamic resolv.conf file for connecting local clients to the
# internal DNS stub resolver of systemd-resolved. This file lists all
# configured search domains.
#
# Run "systemd-resolve --status" to see details about the uplink DNS servers
# currently in use.
#
# Third party programs must not access this file directly, but only through the
# symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way,
# replace this symlink by a static file or a different symlink.
#
# See man:systemd-resolved.service(8) for details about the supported modes of
# operation for /etc/resolv.conf.
nameserver 127.0.0.53
search localdomain
If I change the nameserver line to the IP of my nameserver, not the stub,
resolution works.
nameserver 192.168.20.1
search localdomain
Now I can ping hosts by name.
I used to solve this problem like this...
`sudo systemctl disable systemd-resolved.service`
`echo "nameserver 192.168.20.1" | sudo tee -a
/etc/resolvconf/resolv.conf.d/tail`
`sudo reboot`
But /etc/resolvconf/resolv.conf.d no longer exists, and it's about time
this problem was fixed :)
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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Cannot resolve names using systemd-resolved stub resolver
https://bugs.launchpad.net/bugs/1779438
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