GitLab (collaborating.tuhh.de)
Mattermost (communicating.tuhh.de)
Hedgedoc (writemd.rz.tuhh.de)
Out of Office (ooo.tuhh.de)
LimeSurvey (poll3.tuhh.de)
SmartSieve (smartsieve.rz.tuhh.de)
Also affected are websites at www2.tuhh.de and www3.tuhh.de as well as all other container-based services, for example various WordPress installations or web servers connected to GitLab (keyword: static site generators).
If you have any questions, please contact the ServiceDesk via the email address servicedesk@tuhh.de.