DoIT's Web Hosting Service automatically syncs with a universal tnsnames.ora file that is maintained and supplied by DoIT's Data Resource Management Technology (DRMT) group. 

The file is also shared to appropriate staff on GitLabs at: https://git.doit.wisc.edu/DRMT/tnsnames

The Web Hosting service checks the DRMT file on the git repository every hour and if there are changes they are pulled into each web server.

If you have any questions please contact: webhosting@doit.wisc.edu