> Is dnsmasq getting its DNS server information from resolvconf, > which in turn gets it from /etc/network/interfaces? Or, does > dnsmasq take what it likes from /etc/network/interfaces directly, > discarding the rest?
1. If you have only the dnsmasq-base and network-manager packages installed then a dnsmasq process is run as a slave of NetworkManager and gets its nameserver information exclusively from NetworkManager. This dnsmasq process provides name service exclusively at IP address 127.0.1.1. 2. If you have the "dnsmasq" package installed then a(nother) dnsmasq process is run independently of NetworkManager. By default this independent dnsmasq service is configured to obtain its nameserver information exclusively from resolvconf which in turn gets nameserver information from interface configuration processes including ifup, whose configuration file is /etc/network/interfaces. The fact that you have no /etc/dnsmasq.conf strongly suggests that you do not have the "dnsmasq" package installed and so you fall into class #1. Dnsmasq itself never looks in /etc/network/interfaces. To understand how resolvconf works, please consult /usr/share/doc/resolvconf/README.gz . To understand how Ubuntu uses NetworkManager, dnsmasq and resolvconf, please consult https://www.stgraber.org/2012/02/24/dns-in-ubuntu-12-04/ . ** Changed in: dnsmasq (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1284607 Title: resolvconf ignores given dns-servers in /etc/network/interfaces Status in “dnsmasq” package in Ubuntu: Invalid Status in “resolvconf” package in Ubuntu: Invalid Bug description: resolvconf ignores given dns-servers in /etc/network/interfaces if the interface in question is configured by dhcp: auto em1 iface em1 inet dhcp dns-nameservers 10.161.18.34 10.129.18.34 dns-search xxx.yy the "dns-nameservers"-line is ignored (it shouldn't), while the "dns- search"-line is honoured: # 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 nameserver 127.0.0.1 search xxx.yy Together with dnsmasq handling name resolution no names other tan local known ones are resolved. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: resolvconf 1.69ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4 Uname: Linux 3.13.0-12-generic x86_64 ApportVersion: 2.13.2-0ubuntu5 Architecture: amd64 Date: Tue Feb 25 12:57:34 2014 InstallationDate: Installed on 2014-01-31 (25 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Release amd64 (20131016) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: resolvconf UpgradeStatus: Upgraded to trusty on 2014-01-31 (25 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1284607/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp