Programming :: Where To Rsync Rollback Data

I've been given an old rsync script to update some data files on a few different servers... I am trying to understand what directory on the server it gets it's files as the way it seems to refer to the data on the server is:
data_source='random-server.fqdominan.net::Firstlogic'
Not sure what the "::Firstlogic" part with the two :: means.

Here is the entire script:
Code:
#!/bin/sh
# Begin user-configurable options #
# Who can run this script
authorized_user='appdtools'
# From where we rsync the update data
data_source='random-server.fqdominan.net::Firstlogic'
# From where we rsync the rollback data
rollback_data_source='random-server.fqdominan.net::Firstlogic_rollback'
# Where updates will go
data_target='/Firstlogic/postware/dirs'
# How to do the rsync .....

# Here is where we do the "work".
splash# Check user and print warning
if [ "${rsync_test}" == "-n" ]; then
update_address_data# Test the monthly update
else
stop_address# Stop the address standardizer
update_address_data# Load the monthly update
clean_logs# Empty the old log files
start_address# Start the address standardizer
fi

I have not tested this script yet but evidentialy it used to work. I just need to find out where to stick the files on random-server.fqdomain.net to test it out. The server it points to no longer has the files on them...