Tomorrow, on Friday, January 23rd from 16:00 onwards, maintenance work will take place in the server room, and during that time ASTRON will be temporarily unavailable. We recommend closing any files stored centrally at ASTRON in time to prevent loss of work. This also applies to Jira & Confluence pages The systems in Groningen (LOFAR) will continue running and will not be interrupted, and the LOFAR DNS in Dwingeloo will also remain accessible.  However, due to possible unknown dependencies between Dwingeloo and Groningen, we cannot guarantee the correct functioning of LOFAR during the maintenance.  We expect to complete the maintenance work by the end of the evening.    If you have any questions, you can email ict@astron.nl. Thank you for your understanding.