Major changes in RHEL7 and RHEL6

Major changes in RHEL7 and RHEL6
	RHEL7	RHEL6
File system	Xfs	EXT4
Kernel version	3.10.x-x Series	2.6.x-x Series
Kernel name	Maipo	Santiago
Release time	2014-06-09 (3.10.0-123)	2010-11-09 (2.6.32-71)
Process Name	Systemd	Init
Run level	Runlevel0.target->poweroff.target Runlevel1.target->rescue.target Runlevel2.target->multi-user.target Runlevel3.target->multi-user.target Runlevel4.target->multi-user.target Runlevel5.target->graphical.target Runlevel6.target->reboot.target /etc/systemd/system/default.target	Runlevel0 Runlevel1 Runlevel2 Runlevel3 Runlevel4 Runlevel5 Runlevel6 /etc/inittab
Host Name	/etc/hostname	/etc/sysconfig/network
Maximum file	500TB	16TB
Inspection Tools	Xfs.repair	E2fsck
Start tool	GRUB2	GRUB0.97
Service startup	Systemd	Upstart
Service Management	Systemctl Enable Xxx.service Systemctl Start Xxx.service Systemctl Stop Xxx.service Systemctl Restart Xxx.service Compatible Chkconfig,service commands	Service Enable Xxx.service Service Stop Xxx.service Service Start Xxx.service Chkconfig--level 3 5 NFS on
Firewall	FIREWALLD compatible iptables	Iptables
Network bindings	Team Driver	Bonding
Network time	Chrony,ntpd	Ntpd
NFS Version	NFS4.1 supports nfsv3,nfsv4.0,nfsv4.1 clients	NFS4
Cluster Management tools	Pacemaker	Rgmanager
Load Balancing Tools	Keepalived,haproxy	Rgmanager
Desktop environment	gnome3,kde4.10	GNOME2
Database	MariaDB	Mysql
Changes in management commands and configuration files for RHEL7 and RHEL6
Subscription information	RHEL7	RHEL6
Subscription Information tool	Subscription-manager identity	/etc/sysconfig/rhn/systemid Subscription-manager identity
Configure subscription information	Subscription-manager Rhn_register	Rhn_register Rhnreg_ks Subscription-manager Identity
Basic Configuration	RHEL7	RHEL6
GUI Configuration Tool	Gnome-control-center	system-config-*
Network Configuration Tool	NMCLI Nmtui Nm-connection-editor	System-config-network
Language Configuration Tool	Localectl	System-config-language
Time Configuration Tool	Timedatectl Date	System-config-date Date
Time synchronization	Ntpdate/etc/chrony.conf	Ntpdate/etc/ntp.conf
Keyboard configuration	Localectl	System-config-keyboard
Service Management	RHEL7	RHEL6
Service List	Systemctl-at Service LS/{usr/lib,etc}/systemd/system/*.service	Chkconfig ls/etc/init.d/
Service startup	Systemctl Start Name.service	Service Name Start
Service stopped	Systemctl Stop Name.service	Service Name Stop
Service View	Systemctl Status Name.service	Service Name Status
Service restart	Systemctl Restart Name.service	Service Name Restart
Service Boot Start	Systemctl Enable Name.service	Chkconfig name on
Service boot not self-starter	Systemctl Disable Name.service	Chkconfig name off
Add Service	Systemctl Daemon-reload	Achkconfig--add
Service List View	SYSTEMCTL-T Service--state=active	Service--status-all
View Run Level	Systemctl Get-default	RunLevel
Modifying the Run Level	Systemctl Isolate Name.target Init runlevel	Init runlevel
Log file	/etc/rsyslog.conf /etc/rsyslog.d/*.conf /var/log/journal/ /etc/systemd/journald.conf	/etc/rsyslog.conf
viewing log files	/var/log/	/var/log/journalctl
Kernel hardware	RHEL7	RHEL6
Start prompt	Append rd.break or Init=/bin/bash to kernel cmdline	Append 1 or S or Init=/bin/bash to kernel cmdline
Shutting down the system	Systemctl shutdown	Shutdown
Power off	Systemctl Poweroff	Poweroff
Suspend system	Systemctl Halt	Halt
Rebooting the system	Systemctl reboot	Reboot
Modifying the Run Level	Systemctl Set-default	/etc/inittab
Configuring GRUB	/etc/default/grub Grub2-mkconfig Grub-set-default	/boot/grub/grub.conf
Software Management	RHEL7	RHEL6
Install packages	Yum Install Yum Group Install	Yum Install Yum Groupinstall
View Packages	Yum Info Yum Group Info	Yum Info Yum GroupInfo
File system	RHEL7	RHEL6
Creating a file system	Fdisk parted Gdisk	Fdisk parted
LVM Management	Vgextend Lvextend Xfs_growfs	Vgextend Lvextend RESIZE2FS
Network Interface Configuration	RHEL7	RHEL6
Configuration name	/etc/hosts /etc/resolv.conf NMCLI Conmod	/etc/hosts /etc/resolv.conf
Host name Configuration	/etc/hostname Hostnamectl Nmcli	/etc/sysconfig/network
IP address configuration	IP addr NMCLI Dev Show Teamdctl Brctl Bridge	IP add Ifconfig Brctl
Configuring firewalls	Firewall-cmd Firewall-config	Iptables&ip6tables /etc/sysconfig/ip*tables System-config-firewall
View Port Commands	Ss Lsof	Netstat Ss Lsof

Major changes in RHEL7 and RHEL6