[NSWI004] lab.d3s.mff.cuni.cz connectivity issues

[Vojtech Horky]

Hello,

we are sorry but it is currently not possible to log into 
lab.d3s.mff.cuni.cz with your SIS credentials because the LDAP server 
that we use for authentication (and that is not under our control) is down.

Note that if you have uploaded an SSH key, you can still log in.

We hope this is only temporary (and if not, we will shift the deadline 
for the last quiz).

- VH