[Pkg-utopia-maintainers] Bug#842480: avahi-daemon: boot and RAM sleep end with dnscrypt-proxy port covering.

[Trent Lloyd]

Port 5353 is well established and IANA registered as the official port 
for Multicast DNS.

dnscrypt should probably choose a better non-conflicting port as their 
recommended port, 5353 is a poor choice.


If you want to continue using it and don't care for using mDNS/Avahi 
then I suggest that if you spent a fraction of the amount of time you 
spent complaining about systemd, you'll have figured out how to disable 
both avahi's service and it's dbus activated service.  If that's too 
hard, I guess you could uninstall the avahi-daemon package.

Not a bug.

Regards,
  Trent


On 30/10/16 00:19, Jiff wrote:
> Package: avahi-daemon
> Version: 0.6.32-1
> Severity: normal
>
> Dear Mai N'tainer,
>
>     * What led up to the situation?
>
> Booting or recovering from RAM sleep lead to name resolution breakdown.
> dnscrypt-proxy use port 5353 and bind point to it as the only forwarder.
> avahi-daemon has been installed as other packages dependency
>   and left as is; I do not use it.
>
>     * What exactly did you do (or not do) that was effective (or
>       ineffective)?
>
> At first, I thought it was a dnscrypt-proxy problem until I run:
>     netstat -pan|grep 53|grep -v unix
>
> that show port 5353 belong to avahi-daemon:
>
> avahi-daemon ON:
> ================
> tcp        0      0 127.0.0.1:953           0.0.0.0:*               LISTEN
> 8488/named
> tcp        0      0 127.0.0.1:5353          0.0.0.0:*               LISTEN
> 1/init
> tcp        0      0 192.168.1.233:53        0.0.0.0:*               LISTEN
> 8488/named
> tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN
> 8488/named
> tcp6       0      0 :::53                   :::*                    LISTEN
> 8488/named
> udp        0      0 192.168.1.233:53        0.0.0.0:*
> 8488/named
> udp        0      0 127.0.0.1:53            0.0.0.0:*
> 8488/named
> udp        0      0 192.168.1.233:41176     192.168.1.1:5351        ESTABLISHED
> 2998/dring
> udp        0      0 0.0.0.0:5353            0.0.0.0:*
> 10061/avahi-daemon:
> udp        0      0 127.0.0.1:5353          0.0.0.0:*
> 1/init
> udp6       0      0 :::53                   :::*
> 8488/named
> udp6       0      0 :::5353                 :::*
> 10061/avahi-daemon:
>
> avahi-daemon OFF:
> =================
> tcp        0      0 127.0.0.1:953           0.0.0.0:*               LISTEN
> 8488/named
> tcp        0      0 127.0.0.1:5353          0.0.0.0:*               LISTEN
> 1/init
> tcp        0      0 192.168.1.233:53        0.0.0.0:*               LISTEN
> 8488/named
> tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN
> 8488/named
> tcp6       0      0 :::53                   :::*                    LISTEN
> 8488/named
> udp        0      0 192.168.1.233:53        0.0.0.0:*
> 8488/named
> udp        0      0 127.0.0.1:53            0.0.0.0:*
> 8488/named
> udp        0      0 192.168.1.233:41176     192.168.1.1:5351        ESTABLISHED
> 2998/dring
> udp        0      0 127.0.0.1:5353          0.0.0.0:*
> 1/init
> udp6       0      0 :::53                   :::*
> 8488/named
>
> (Quite a strange thing that dnscrypt-proxy appears as the init process,
> guess it is, once again, a magnificent feature of shitstemd that knows
> much better than any admin how to do things on his own machine, even
> against his will…)
>
>     * What was the outcome of this action?
>
> Stopping avahi-daemon made my day.
> Note that if I play a bit with it, after 2-3 stop/start/restart I'm obliged to
> kill -9 it (seven times before it dies, guess because of  shitstemd.)
>
>     * What outcome did you expect instead?
>
> avahi-daemon not covering dnscrypt-proxy port.
>
> Have a nice day.
>
>
>
> -- System Information:
> Debian Release: stretch/sid
>    APT prefers unstable
>    APT policy: (500, 'unstable')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
>
> Kernel: Linux 4.7.0-1-amd64 (SMP w/4 CPU cores)
> Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
>
> Versions of packages avahi-daemon depends on:
> ii  adduser              3.115
> ii  bind9-host [host]    1:9.10.3.dfsg.P4-10.1
> ii  dbus                 1.10.12-1
> ii  host                 1:9.10.3.dfsg.P4-10.1
> ii  init-system-helpers  1.45
> ii  libavahi-common3     0.6.32-1
> ii  libavahi-core7       0.6.32-1
> ii  libc6                2.24-5
> ii  libcap2              1:2.25-1
> ii  libdaemon0           0.14-6
> ii  libdbus-1-3          1.10.12-1
> ii  libexpat1            2.2.0-1
> ii  lsb-base             9.20161016
>
> Versions of packages avahi-daemon recommends:
> ii  libnss-mdns  0.10-7
>
> Versions of packages avahi-daemon suggests:
> pn  avahi-autoipd  <none>
>
> -- Configuration Files:
> /etc/resolvconf/update-libc.d/avahi-daemon [Errno 2] No such file or directory: u'/etc/resolvconf/update-libc.d/avahi-daemon'
>
> -- no debconf information
>