User accounts on the ACP web server can be assigned certain privileges. They are described in the table below:
| Compress image files | Should normally be granted. Images acquired by this user will automatically be zip-compressed to reduce downloading time. |
| Allow web uploading | Should normally be granted. Allow uploading anything, including observing plans, files for the "shared files" folder, and utility scripts. |
| Allow using FTP server | Should normally be granted. Allow login to the FTP server. |
| Allow script execution | Security risk if combined with Allow web uploading! This is not needed for normal observing tasks. It applies only to running Utility scripts. Combined with Allow web uploading, this gives the user privileges to do anything on your system, including reformatting the hard drive! You can create a special user for engineering purposes who can run Utility scripts but cannot upload, but this would be unusual. |
| Administrator privileges | Security risk! This permits the user to kill other users' observing runs, kick them off the observatory, connect and disconnect instruments, and other "operator" tasks. |
| Disable this account | This disables all access for the user. Useful for temporarily blocking access by a user. |