Just trying to check this off my list. We recently updated ISPC3 to 3.1.15p3. Seems after we did this we are having issues with file permissions. We have a custom application that has a script that generates files in directories and now we are getting permission errors. I have issued chmod -R 755 /imgcache and as soon a new file is created in that directory it does not get that permissions and we get errors trying to open it from our application. Could the update have caused this?
More info: Working with our dev he is stating this. "I checked that the php user web1 have default umask value 0063 when I set it through php to 0022 it works fine when upload file but the problem is that through php it resets every time page opens to old value"
No ISPConfig does not set or alter the Umask in any way, so what you see on your system is not caused by iSPConfig or the result of the ISPConfig update. You probably just notice it now as the update restarted all software from web server stack.