When ScrapeLinker check its license at startup, and it find a valid license, it will set a session id in the mysql db (its a random id generated by a mysql function).
Periodically, SLinker will retrieve a fresh session id, by submitting the previous session id.
if the previous session id was found, the php will generate a fresh session id and update the record.
If now another copy using a cloned image start, it will overwrite the session id and only that copy will run, all other wont continue running.
So with short words, SLinker get periodically a new session id assigned, ONLY when the precious session id match the current on the server.
That should prevent running multiple copies on cloned vps/vm using the same account.
What do you think? What shall we do when we detect the session id has changed (another copy is using it)?