After install the daemon runs fine in 18.04:
root@b:~# systemctl status dnsmasq
● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled; vendor preset:
enabled)
Active: active (running) since Mon 2020-04-06 06:34:36 UTC; 26s ago
Main PID: 25562 (dnsmasq)
Tasks: 1 (limit: 38284)
CGroup: /system.slice/dnsmasq.service
└─25562 /usr/sbin/dnsmasq -x /run/dnsmasq/dnsmasq.pid ...
The file exists matching the ownership as you described:
root@b:~# ll /run/dnsmasq/dnsmasq.pid
-rw-r--r-- 1 dnsmasq nogroup 6 Apr 6 06:34 /run/dnsmasq/dnsmasq.pid
The path is defined the same way in the service file:
root@b:~# systemctl cat dnsmasq | grep PIDF
PIDFile=/run/dnsmasq/dnsmasq.pid
The file content is correct:
root@b:~# cat /run/dnsmasq/dnsmasq.pid
25562
There is no complaint about the PIDFILE (or anything else):
Apr 06 06:34:35 b systemd[1]: Starting dnsmasq - A lightweight DHCP and caching
DNS server...
Apr 06 06:34:35 b dnsmasq[25512]: dnsmasq: syntax check OK.
Apr 06 06:34:36 b dnsmasq[25562]: started, version 2.79 cachesize 150
Apr 06 06:34:36 b dnsmasq[25562]: compile time options: IPv6 GNU-getopt DBus
i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth DNSSEC loop-detect inotify
Apr 06 06:34:36 b dnsmasq[25562]: reading /etc/resolv.conf
Apr 06 06:34:36 b dnsmasq[25562]: using nameserver 127.0.0.53#53
Apr 06 06:34:36 b dnsmasq[25562]: read /etc/hosts - 7 addresses
Apr 06 06:34:36 b systemd[1]: Started dnsmasq - A lightweight DHCP and caching
DNS server.
systemd properly reads it as well:
root@b:~# systemctl show --property MainPID --value dnsmasq
25562
I wonder what issue you are actually looking at as I've seen none and
your report has no example error.
Reading between the lines - if you want to run sysV init instead of
systemd as the main init system that isn't supported in modern Ubuntu
releases.
** Changed in: dnsmasq (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1870980
Title:
dnsmasq conf file runtime group conflicts with initd
Status in dnsmasq package in Ubuntu:
Incomplete
Bug description:
In /etc/dnsmasq.conf a runtime group of 'dnsmasq' is specified
The initd start script is creating a pid file and changing its
ownership to dnsmasq:nogroup
This causes the pid file to not be found (though I'm not sure why
since the pid file is owned by user 'dnsmasq')
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: dnsmasq 2.79-1 [modified: etc/dnsmasq.conf]
ProcVersionSignature: Ubuntu 5.3.0-45.37~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-45-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Apr 5 15:44:29 2020
InstallationDate: Installed on 2020-04-04 (1 days ago)
InstallationMedia: Kubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64
(20200203.1)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: dnsmasq
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.dnsmasq.conf: [modified]
mtime.conffile..etc.dnsmasq.conf: 2020-04-05T11:13:49.503651
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