There were total two rounds. One was technical and another was Managerial. Both rounds were good. The level of interview was average, not too easy not too difficult. Mostly questions were on backup troubleshooting, networking, OS.
I applied online. The process took 1 day. I interviewed at Rackspace Technology (San Antonio, TX) in Dec 2013
Interview
The recruiter contacted me and said that they would get me in touch with someone to interview with. However, once they found out that I was not hired for a Linux Administrator job (because I was told they had a bad quarter and wouldn't be hiring anyone) - - the recruiters of this company automatically stop talking to you and ignore you permanently.