Since setup and testing of the new ftp-server have been completed, it has now gone in production. It can be reached under http://ftp.gwdg.de.
The domain of the familiar, old server ftp5.gwdg.de points now to the new one. However, all files are accessible under the original paths. The only noticeable difference should be with regard to performance. If you notice any regressions, please contact us via the GWDG Support (https://www.gwdg.de/support).