Typically every hotfix will have steps on how to implement it that will cover situation like if it can be pushed from the server or if it can only be manually done on the node. So please check the specific hotfix text file for details.
Also note that hotfix is meant only to be applied on a node if it runs into the specific problem that the hotfix is correcting. A hotfix is not the same a patch - in other words it is not meant for 'blanket' deployment for all nodes as it has not undergone full testing. So you may really want to consder that as well.