[WDMyCloud] ordinary users ssh recurringly breaks

Setup

Call me paranoid but I do not like Windoof file share even in my own home network, so I set up ssh. But it periodically breaks but I do not know why and have not got to investigate into it. I guess, however, that there is sort of system update.

Symptoms

Obviously, the connection fails. But, I get some messages too.

1. On the command line connection try I see
   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   @       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@   
2. After having worked around it, it is a permission denied.                                  
3. In MyCloud:/var/log/sshd.log I get
   User <your user> from debian.fritz.box not allowed because not listed in AllowUsers

Work-around

1. Use the command you get provided to remove the offending key:
   ssh-keygen -f "/home/<your user>/.ssh/known_hosts" -R <remote fqdn or ip address>
2. Add in /etc/ssh/sshd_config your user name to the list after AllowUsers. It is a space delimited list.
3. You need to reload the ssh config, e.g. with /etc/init.d/ssh reload

Update on firmware update

Installing a normal firmware update (why does WD it called like this since it is a patch of the Debian OS they use and not something in the eproms or what ever?) breaks it as well. Point its as far as I can tell they just replace the whole OS. Having that said it obviously removed my guerilla installation of subversion. I mere apt-get update && apt-get install subversion fixed this but file persimissions where left too untidy to leave key authentication working. Fix: chown thiemo /DataVolume/shares/Thiemo && chmod g-w /DataVolume/shares/Thiemo

[Citrix] Slow "connection" to a windoof computer

You work from remote possibly over the internet with a windoof over citrix session and you can count each and every pixel the pointer hops to?
You might want to check the theme of your windoof over citrix session that is active for your user. Change it to the classic theme and re-try. For me it helped a great deal. Pointer movement is nearly as smooth and fast as on a local computer.