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RHEL6和RHEL7的变化
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 |
RHEL6和RHEL7的变化
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