We have now resolved the hardware problems with the new hardware for the staff NX server so we can reschedule the planned upgrade.
On Tuesday 6th January we plan to replace the staff NX server named central which hosts
staff.nx.inf.ed.ac.uk with a machine named northern.
All that will happen is that at about 09:00 on Tuesday we will change the DNS aliases to point to the new machine. This change can take some time to propagate so we will not switch off access to central immediately. It will be left running as normal until 12:00 Friday 9th January. This should allow sufficient time for users logged in to finish their existing sessions and move to the new server.
The IP address for the service will change from
220.127.116.11, your NX client may warn you about this change and request verification. For reference the new RSA host key fingerprint is: