[avahi] Clean explanatio​​n of Avahi Daemon usage

[Anuwar Deen]

Hello,
  I checked /var/log/messages in my server and got the following logs. I
checked google but can't get clear idea. Can you please help me and explain
what is avahi and its use. why those logs coming in my server. I am new for
linux.

avahi-daemon[7931]: Invalid query packet.
Jun 4 00:04:57 server1 last message repeated 14 times
Jun 4 04:04:59 server1  last message repeated 15 times
Jun 4 11:40:53 server1  last message repeated 20 times
Jun 4 11:46:31 server1  last message repeated 8 times
Jun 4 12:39:48 server1  last message repeated 8 times
Jun 4 13:30:02 server1  last message repeated 15 times
Jun 4 14:40:06 server1  last message repeated 12 times
Jun 4 16:18:51 server1  last message repeated 21 times
Jun 4 16:27:56 server1   last message repeated 19 times
Jun 4 17:05:16 server1 last message repeated 10 times
Jun 4 17:52:40 server1 last message repeated 13 times
Jun 4 18:41:13 server1 last message repeated 11 times
Jun 4 18:41:13  server1 avahi-daemon[8124]: server.c: Packet too short or
invalid while reading response record. (Maybe an UTF8 problem?)
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