Here are the instructions I followed:
Executed sudo insserv avahi-daemon
No messages received either way. Executed sudo nano /etc/avahi/services/multiple.service and created a file with the text below.
<?xml version="1.0" standalone='no'?> <!DOCTYPE service-group SYSTEM "avahi-service.dtd"> <service-group> <name replace-wildcards="yes">%h</name> <service> <type>_device-info._tcp</type> <port>0</port> <txt-record>model=RackMac</txt-record> </service> <service> <type>_ssh._tcp</type> <port>22</port> </service> </service-group>
Executed sudo /etc/init.d/avahi-daemon restart