RHEL6和RHEL7的变化
RHEL6和RHEL7的变化
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 date |
timedatectl date |
| Synchronize time and date |
ntpdate /etc/ntp.conf |
ntpdate /etc/chrony.conf |
| Configure keyboard | system-config-keyboard | localectl |
Jobs and services
| Task | RHEL6 | RHEL7 |
|---|---|---|
| List all services |
chkconfig ls /etc/init.d/ |
systemctl -at service 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 service name stop |
systemctl start name.service systemctl stop name.service |
| Enable/disable a service |
chkconfig name on chkconfig name off |
systemctl enable name.service 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 groupinstall |
yum install yum group install |
| View software info |
yum info yum groupinfo |
yum info 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 lvextend resize2fs |
vgextend lvextend 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 ss lsof |
ss lsof |
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