Note that this bug report should be filed against package avahi-daemon, and not avahi, since avahi, itself, isn't even a package, but the Launcpad form wouldn't let me submit it as such.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/1676476 Title: Unable to do nsswitch resolution on Avahi due to permissions issue Status in avahi package in Ubuntu: New Bug description: I set up Avahi on two 16.04 systems, but was unable to resolve between them via ping; note, however, that avahi-resolve worked fine: root@clients-1:~# avahi-resolve -n -4 kentest.local kentest.local 192.168.243.16 # This is a good thing These, not so much good: root@clients-1:~# ping kentest.local ping: unknown host kentest.local My nsswitch.conf file was thus: hosts: files mdns4_minimal [NOTFOUND=return] dns I did a strace on the ping, and saw this: sun_path="/var/run/avahi-daemon/socket"}, 110) = -1 EACCES (Permission denied) The socket's permissions were fine, so I looked at the directory the socket was in and saw: root@clients-1:~# ls -ald /var/run/avahi-daemon/ drwx------ 2 avahi avahi 80 Mar 27 05:35 /var/run/avahi-daemon/ It seemed to me this should have been okay -- I mean, I was trying the ping as root, and presumably user avahi would be servicing the request if it wasn't user root. But "Permission denied" is "permission denied," so I changed directory permissions and tried again: root@clients-1:~# chmod 777 /var/run/avahi-daemon/ root@clients-1:~# ping kentest.local PING kentest.local (192.168.243.16) 56(84) bytes of data. 64 bytes from 192.168.243.16: icmp_seq=1 ttl=64 time=1.31 ms 64 bytes from 192.168.243.16: icmp_seq=2 ttl=64 time=0.742 ms ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: avahi-daemon 0.6.32~rc+dfsg-1ubuntu2 ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 Date: Mon Mar 27 14:55:01 2017 Ec2AMI: ami-00000004 Ec2AMIManifest: FIXME Ec2AvailabilityZone: nova Ec2InstanceType: GB.small Ec2Kernel: unavailable Ec2Ramdisk: unavailable ProcEnviron: TERM=xterm SHELL=/bin/bash PATH=(custom, no user) LANG=en_US.UTF-8 XDG_RUNTIME_DIR=<set> SourcePackage: avahi UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1676476/+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
