Public bug reported:
Problem: systemd breaks resolvconf-dependent DNS
Test case: Install dnsmasq with systemd.
Result:
The script in /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines the
make_resolv_conf() function to pass DHCP information to the /sbin/resolvconf
program.
The script in /etc/dhcp/dhclient-enter-hooks.d/resolved redefines the
make_resolv_conf() function to write DHCP information to
/run/systemd/resolved.conf.d/isc-dhcp-v4-$interface.conf
As a result, resolvconf never runs, and dnsmasq never receives the
DHCP-supplied nameservers.
Therefore, DNS resolution is broken.
Expected result:
DHCP-supplied nameservers should be passed to both resolvconf and to systemd.
Workaround:
Use the 127.0.0.53 address for the systemd resolver as the dnsmasq upstream
server.
lsb_release -rd output:
Description: Ubuntu 18.04.1 LTS
Release: 18.04
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1797602
Title:
systemd incompatible with openresolv and dnsmasq
Status in systemd package in Ubuntu:
New
Bug description:
Problem: systemd breaks resolvconf-dependent DNS
Test case: Install dnsmasq with systemd.
Result:
The script in /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines the
make_resolv_conf() function to pass DHCP information to the /sbin/resolvconf
program.
The script in /etc/dhcp/dhclient-enter-hooks.d/resolved redefines the
make_resolv_conf() function to write DHCP information to
/run/systemd/resolved.conf.d/isc-dhcp-v4-$interface.conf
As a result, resolvconf never runs, and dnsmasq never receives the
DHCP-supplied nameservers.
Therefore, DNS resolution is broken.
Expected result:
DHCP-supplied nameservers should be passed to both resolvconf and to
systemd.
Workaround:
Use the 127.0.0.53 address for the systemd resolver as the dnsmasq upstream
server.
lsb_release -rd output:
Description: Ubuntu 18.04.1 LTS
Release: 18.04
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1797602/+subscriptions
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