Major changes in RHEL7 and RHEL6

Source: Internet
Author: User
Tags rsyslog chrony

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

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