How to Execute Drush Commands on Remote Sites

To execute Drush commands on remote cores there are a couple of prerequisites that you should make sure are met:

• Drush needs to be installed remotely
• Your DRD main server needs to be able to connect to the remote core via SSH, for that you need to have the php-ssh2 library installed

If all of that is prepared, then you should edit the details of your core in DRD and enable SSH and Drush support there. Then you should update remote actions for your cores and that will bring all the remote druash commands into the action list within DRD,

Well, this is the same for all managed hosting environments. If the hoster doesn't allow for certain libraries, then the tools that require those libraries can't be used. This is not a DRD limitation, you would have the same issue if you wanted to used Drush on remote hosts from that same server's console as well - it wouldn't be possible.

My suggestion in such scenarios is that the DRD main server could easily be installed somewhere else where you have more flexibility. That could be any cheap host that gives you access to everything you need to configure. You won't expect a lot of traffic on that server, it's just one that provides the DRD Dashboard which is not mission critical.