Synergy must be configured properly filling the /etc/synergy/synergy.conf configuration file.
Instructions how to fill this file, along with an example, are available in the 'Deployment and Administrator Guide'
By default synergy logs its activities on the file /var/log/synergy/synergy.log. This file name can be changed modifying the synergy configuration file (attribute filename of the [Logger] section)
To interact with Synergy using the client tool, just one port needs to be open. This is the port defined in the synergy configuration file (attribute port in the [WSGI] section). The default value is 8051.
Likewise the OpenStack services, synergy stores persistently the needed information in a relational database. Instructions how to create this database are reported in the 'Deployment and Administrator Guide'.