In an aspect of the disclosure, a method, a computer-readable medium, and a device are provided. The device determines that a target event occurred at a first server in a group of servers that are jointly managed. The device obtains, for the first server, a public-private key pair including a first key and a second key. The device provides the first key to the first server such that the first server is accessible by authentication with the first key. The device provides the second key to a client device such that the first server is accessible by the client device by providing the second key to the server. Subsequently, the device revokes the first key from the first server.