Deployment Prerequisites Check /etc/hostname is correct and set in FQDN Check your DNS resolution is OK. Check if you can ping internal ressources Check the file /etc/resolv.conf contains : search your_domainnameserver IP_of_your_AD_server If not OK, add this to the file /etc/sysconfig/network-scripts/ifcfg-XXX DNS1=IP_of_your_AD_server Enable the needed repo by editing /etc/yum.repos.d/redhat.repo [rhel-7-server-optional-rpms]enabled = 1 Install following packages : yum clean allyum […]