Files uploaded using this service are not encrypted by default. To use the built-in password encryption, click the "Encrypt every file" checkbox when uploading files. Dropoffs must not exceed 300MB if using encryption and passwords must be a minimum of 10 characters; Passwords are not automatically sent to the recipient and must be distributed via an alternative method.
Limited storage space
The Dropfile server has 500GB of storage available for dropoffs which is shared across all users so please be considerate of other users when uploading large files.
Files are automatically deleted from Dropfile 14 days after they are uploaded, regardless if they have been downloaded or not.
Please contact us if you have any queries or issues when using the Dropfile service.
If you already have a QMUL ITS Research account, we recommend that you log in using those credentials to unlock the ability to send files to non-QMUL email addresses and to bypass email verification.
Users who do not already have a QMUL ITS Research account may only use this service to upload files to a QMUL email address, or collect files shared by someone within QMUL. Alternatively, you may request an account by completing the form on this page.
Uploading and Sending Files¶
Files may be uploaded to Dropfile via HTTPS or via SFTP (Apocrita users only).
To upload files, click on the 'Upload' button on the 'Home' tab and complete one of the following steps:
- Verify (or enter, for non-authenticated users) the sender information and and click Next. If you have been given a "Request Code", also enter this in the relevant field.
- Enter the recipient(s) details and add a short note.
To upload files using HTTPS, select a file using the file manager, enter a file description (required) and click 'Drop off'. To upload via SFTP, follow the alternative instructions here.
Uploading using SFTP¶
Incoming SFTP connections are limited to Apocrita only
For security, we only allow incoming SFTP connections from Apocrita. Using an SFTP client from any other machine (i.e. your personal machine) may either cause the connection to hang or display a timeout error.
To use this method, please contact us so we can create your SFTP account on Dropfile. Upon account creation, you will receive a username (same as Apocrita) and a password, which may only be used on Dropfile. You may also use SSH key authentication after providing us with your public SSH key. For more information regarding SSH keys, see here.
Once you receive a SFTP account on Dropfile, you may upload files directly from Apocrita by running the following commands:
$ sftp dropfile.hpc.qmul.ac.uk sftp> cd <USER> sftp> put <filename>
You should replace
<USER> with your Apocrita username and
with the filename you want to upload.
Once files have been completed, you should see a selection box to the right of the file manager upload button (used for HTTPS uploads) which contains a list of your uploaded files. Files listed here are only accessible by you and the ITS Research support team.
Downloading files to Apocrita using SFTP¶
In certain circumstances where downloading a batch of large files over HTTPS and then copying to Apocrita is not suitable, we can provide assistance to allow files to be transferred directly to Apocrita via SFTP.
As this step is neither automated nor available as-is, please contact us with your username and claim ID and we shall provide further instructions on how to retrieve your files. If the drop-off is encrypted, we also require the decryption password.