RHEL 6 和 RHEL 7 之间的变化（部分内容）

Administrative command and config-file changes System Basics Task RHEL6 RHEL7 View RH subscription information /etc/sysconfig/rhn/systemid 
subscription-manager identity subscription-manager identity Configure RH subscription rhn_register 
rhnreg_ks 
subscription-manager subscription-manager¹⁴ 
rhn_register15 Basic Configuration Task RHEL6 RHEL7 Graphical configuration tools system-config-* gnome-control-center Configure network system-config-network nmcli 
nmtui 
nm-connection-editor Configure system language system-config-language localectl Configure system time and date system-config-date  timedatectl  date date Synchronize time and date ntpdate  ntpdate  /etc/ntp.conf /etc/chrony.conf Configure keyboard system-config-keyboard localectl Jobs and services Task RHEL6 RHEL7 List all services chkconfig  systemctl -at service  ls /etc/init.d/ ls /{usr/lib,etc}/systemd/system/*.service List running services service –status-all systemctl -t service –state=active Start/stop a service service name start  systemctl start name.service  service name stop systemctl stop name.service Enable/disable a service chkconfig name on  systemctl enable name.service  chkconfig name off systemctl disable name.service Check if service enabled chkconfig name systemctl is-enabled name View service status service name status systemctl status name.service Create service file or change config chkconfig –add systemctl daemon-reload View runlevel/target runlevel systemctl get-default Change runlevel/target init runlevel systemctl isolate name.target init runlevel Configure logging /etc/rsyslog.conf /etc/rsyslog.conf  /etc/rsyslog.d/*.conf  /var/log/journal/  /etc/systemd/journald.conf View logs /var/log/ /var/log/  journalctl Kernel, boot, and hardware Task RHEL6 RHEL7 Bypass root password prompt at boot append 1 or s or init=/bin/bash to kernel cmdline append rd.break or init=/bin/bash to kernel cmdline Shut down system shutdown systemctl shutdown Power off system poweroff systemctl poweroff Halt system halt systemctl halt Reboot system reboot systemctl reboot Configure default runlevel/target /etc/inittab systemctl set-default Configure GRUB bootloader /boot/grub/grub.conf /etc/default/grub  grub2-mkconfig  grub-set-default Software management Task RHEL6 RHEL7 Install software yum install  yum install  yum groupinstall yum group install View software info yum info  yum info  yum groupinfo yum group info File systems, volumes, and disks Task RHEL6 RHEL7 Create/modify disk partitions fdisk 
parted fdisk 
parted 
gdisk Default file system ext4 xfs Enlarge volumes formatted with default filesystem vgextend  vgextend  lvextend  lvextend  resize2fs xfs_growfs Networking Task RHEL6 RHEL7 Configure name resolution /etc/hosts 
/etc/resolv.conf /etc/hosts  /etc/resolv.conf  nmcli con mod Configure hostname /etc/sysconfig/network /etc/hostname  hostnamectl  nmtui View network interface info ip addr 
ifconfig 
brctl ip addr  nmcli dev show  teamdctl  brctl  bridge Configure network interface /etc/sysconfig/network-scripts/ifcfg-* /etc/sysconfig/network-scripts/ifcfg-*  nmcli con [add|mod|edit]  nmtui  nm-connection-editor Configure firewall iptables & ip6tables 
/etc/sysconfig/ip*tables 
system-config-firewall firewall-cmd 
firewall-config View ports/sockets netstat 
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