[Pkg-utopia-maintainers] Bug#794490: avahi-daemon: "Invalid response packet" messages make daemon.log unreadable

[Francesco Potortì]

Package: avahi-daemon
Version: 0.6.31-5
Severity: normal

This bug report is the same as of the old report #556461, which in my
opinion was closed for the wrong reason.


I have my daemon.log full of lines like these:

Aug  3 09:37:50 tucano avahi-daemon[2917]: Invalid response packet from host 146.48.86.21.
Aug  3 09:37:50 tucano avahi-daemon[2917]: Invalid response packet from host 146.48.86.21.
Aug  3 09:37:50 tucano avahi-daemon[2917]: Invalid response packet from host 146.48.86.21.
Aug  3 09:37:51 tucano avahi-daemon[2917]: Invalid response packet from host 146.48.86.21.

Since I do not control hosts on my network, those lines are useless to
me.  However, they constitute 98% of lines in my daemon.log, because
they are generated at about 3-seconds intervals.

I think this problem is serious enough to classify it as a bug, because
it makes my daemon.log difficult to manage and read.  There should be a
way to disable those warnings, or at least have them generated at much
longer intervals.


The reason for closing #556461 was that a particular problem was
corrected in avahi, but that was not the issue: the problem is that any
possible bad response for any node in the net fills up my logs.  This is
definitely bad, and my only workaround at the moment is to filter out
those messages through syslog, which is definitely undesirable.

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-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'testing-proposed-updates'), (101, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.12-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=it_IT.UTF-8 (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              3.113+nmu3
ii  bind9-host [host]    1:9.9.5.dfsg-11
ii  dbus                 1.8.20-1
ii  init-system-helpers  1.23
ii  libavahi-common3     0.6.31-5
ii  libavahi-core7       0.6.31-5
ii  libc6                2.19-19
ii  libcap2              1:2.24-9
ii  libdaemon0           0.14-6
ii  libdbus-1-3          1.8.20-1
ii  libexpat1            2.1.0-7
ii  lsb-base             4.1+Debian13+nmu1

Versions of packages avahi-daemon recommends:
ii  libnss-mdns  0.10-6

Versions of packages avahi-daemon suggests:
pn  avahi-autoipd  <none>

-- Configuration Files:
/etc/avahi/avahi-daemon.conf changed:
[server]
host-name=cng
use-ipv4=yes
use-ipv6=yes
ratelimit-interval-usec=1000000
ratelimit-burst=1000
[wide-area]
enable-wide-area=yes
[publish]
publish-domain=no
[reflector]
[rlimits]
rlimit-core=0
rlimit-data=4194304
rlimit-fsize=0
rlimit-nofile=768
rlimit-stack=4194304
rlimit-nproc=3

/etc/default/avahi-daemon changed:
AVAHI_DAEMON_DETECT_LOCAL=1


-- no debconf information