Key Changes in RHEL 7
Changes of an peratingo system is divided in to 5 sections System changes Security changes Storage changes Network changes Application changes 1.System changes 32 bits no more in use in RHEL 7, need at least 1GB memory per logical CPU and 2GB memory to run 2.Security changes firewalld - buildin configurations /usr/lib/firewalld and /etc/firewalld SELinux can change the options FSS - Forward Secure sealing A new mechanism to secure systemd journal. It is disabled in default. To enable it, run the command journalctl --setup-keys. By running this "sealing key" and "verification key" are generated, the "verification key" is generated once and stored locally or has to be recorded. Identity management is used 3.Storage changes New default file system is xfs. It allows upto 500TB comparing ext4 allows 16TB in REHL 6. It adds additional features such as best performance for most workloads and less CPU intensive. As a draw...