System Permissions

Tomcat runs as a user called "entermedia" on Linux. You will want to have the hot folders permissions owned by the user "entermedia" in the "entermedia" group. Then set the sticky bit so any new files also have the parent folder permissions. Set ownership of entermedia files to "entermedia" user and group
cd /opt/entermedia/
chown -R entermedia:entermedia .
Set access permissions on files and directories
find . -type d -exec chmod 775 {} \;
find . -type f -exec chmod 664 {} \;
Note: Make sure FTP users are in the "entermedia" group.