AVAHI_log

Source: https://askubuntu.com/questions/460371/trouble-using-ssh-and-avahi
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Client Instructions:

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Requirements: avahi-daemon avahi-dnsconfd
    avahi-discover avahi-utils libnss-mdns

0 - sudo apt-get install avahi-daemon \
    avahi-dnsconfd avahi-discover avahi-utils \
    libnss-mdns

nss-mdns is a plugin for the GNU Name Service
Switch (NSS) functionality of the GNU C Library
(glibc) providing host name resolution via
Multicast DNS (using Zeroconf, aka Apple Bonjour /
Apple Rendezvous ), effectively allowing name
resolution by common Unix/Linux programs in the
ad-hoc mDNS domain .local
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1 - Check /etc/nsswitch.conf

    hosts:     files wins mdns4_minimal dns [NOTFOUND=return] mdns4

It should have mdns4_minimal or mdns4 before
[NOTFOUND=return] and before dns if you have a DNS
server that configured resolve *.local.

Remove wins if you are not using winbind/samba to
resolve Windows share hostnames.

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Server Instructions:

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Requirements: avahi-daemon avahi-dnsconfd avahi-discover avahi-utils

0 - avahi-daemon avahi-dnsconfd avahi-discover avahi-utils
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1 - sudo apt-get install avahi-daemon avahi-dnsconfd \
    avahi-discover avahi-utils

avahi-daemon provide services publishing.

Check its service status

2 - service avahi-daemon status

    avahi-daemon start/running, process 1517

By default avahi publish _workstation._tcp
service. Check using avahi-discover locally,
if not listed try enabling it in
/etc/avahi/avahi-daemon.conf (remove #)

    publish-workstation=yes

Then restart daemon:

3 - sudo service avahi-daemon restart

Debugging hints:

On the client machine

Check avahi-dnsconfd service status

1 - service avahi-dnsconfd status
    avahi-dnsconfd start/running, process 1548

Run avahi-discover and look for the hostname under IPv4->local->Workstation

2 - avahi-discover

See if Avahi can resolve host names

3 - avahi-resolve -4 --name yourdesktop.local

Ping test

4 - ping yourdesktop.local

lerwys@lerwysPC:~$ ping dig-jobs.local
PING dig-jobs.local (10.0.18.34) 56(84) bytes of data.
64 bytes from 10.0.18.34: icmp_seq=1 ttl=64 time=0.239 ms