We track oracle tnsnames files so we can make sure they get updated. The first four lines of the file look like this: # # Tnsnames.ora # 06.18.2009 # We change the date when it gets updated and the inventory does all the parsing but it depends on the third line being there. We have a report of which machines do not have the latest version of the tnsnames so we can keep track of rolling out the new file. The dataclass and inventory are attached.