Step-by-step guide CENTOS (yum): sudo wget -O /etc/yum.repos.d/pbiso.repo http://repo.pbis.beyondtrust.com/yum/pbiso.repo sudo yum clean all sudo yum install pbis-open UBUNTU(apt): wget -O – http://repo.pbis.beyondtrust.com/apt/RPM-GPG-KEY-pbis|sudo apt-key add –