You Might Not Need This!¶ Are you running Ansible 1.5 or later? If so, you may not need accelerate mode due to a new feature called “SSH pipelining” and should read the pipelining section of the documentation. For users on 1.5 and later, accelerate mode only makes sense if you (A) are managing from an Enterprise Linux 6 or earlier host and still are on paramiko, or (B) can’t enable TTYs with sudo