【3】如果要将网络接口名称用作ethX，请按如下所示进行配置。
[root@vdevops ~]# vim /etc/default/grub #第六行添加 GRUB_CMDLINE_LINUX="crashkernel=auto ipv6.disable=1 <span style="color:#FF0000;">net.ifnames=0</span> rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet [root@vdevops ~]# grub2-mkconfig -o /boot/grub2/grub.cfg Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.10.0-327.36.2.el7.x86_64 Found initrd image: /boot/initramfs-3.10.0-327.36.2.el7.x86_64.img Found linux image: /boot/vmlinuz-3.10.0-327.el7.x86_64 Found initrd image: /boot/initramfs-3.10.0-327.el7.x86_64.img Found linux image: /boot/vmlinuz-0-rescue-d1b9467b8b744a3db391f2c15fe58a94 Found initrd image: /boot/initramfs-0-rescue-d1b9467b8b744a3db391f2c15fe58a94.img done
4、服务设置
[1]、查看服务状态
# 显示正在运行的服务 [root@vdevops ~]# systemctl -t service UNIT LOAD ACTIVE SUB DESCRIPTION auditd.service loaded active running Security Auditing Service avahi-daemon.service loaded active running Avahi mDNS/DNS-SD Stack crond.service loaded active running Command Scheduler dbus.service loaded active running D-Bus System Message Bus getty@tty1.service loaded active running Getty on tty1 ... ... ... systemd-udevd.service loaded active running udev Kernel Device Manager systemd-update-utmp.service loaded active exited Update UTMP about System Reboot/Shutdown systemd-user-sessions.service loaded active exited Permit User Sessions systemd-vconsole-setup.service loaded active exited Setup Virtual Console tuned.service loaded active running Dynamic System Tuning Daemon LOAD = Reflects whether the unit definition was properly loaded. ACTIVE = The high-level unit activation state, i.e. generalization of SUB. SUB = The low-level unit activation state, values depend on unit type. 39 loaded units listed. Pass --all to see loaded but inactive units, too. To show all installed unit files use 'systemctl list-unit-files'. # 显示所有服务 [root@vdevops ~]# systemctl list-unit-files -t service UNIT FILE STATE auditd.service enabled autovt@.service disabled avahi-daemon.service enabled blk-availability.service disabled brandbot.service static ... ... ... systemd-user-sessions.service static systemd-vconsole-setup.service static teamd@.service static tuned.service enabled wpa_supplicant.service disabled 125 unit files listed.
[2]、设置停止启动自动的服务
[root@vdevops ~]# systemctl stop postfix #停止服务 [root@vdevops ~]# systemctl disable postfix Removed symlink /etc/systemd/system/multi-user.target.wants/postfix.service. [root@vdevops ~]# systemctl start postfix [root@vdevops ~]# systemctl enable postfix Created symlink from /etc/systemd/system/multi-user.target.wants/postfix.service to /usr/lib/systemd/system/postfix.service. [root@vdevops ~]# systemctl status postfix ● postfix.service - Postfix Mail Transport Agent Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; vendor preset: disabled) Active: active (running) since Wed 2016-10-26 18:40:35 CST; 15s ago Main PID: 10071 (master) CGroup: /system.slice/postfix.service ├─10071 /usr/libexec/postfix/master -w ├─10072 pickup -l -t unix -u └─10073 qmgr -l -t unix -u Oct 26 18:40:35 vdevops.com postfix[9999]: /usr/sbin/postconf: warning: inet_protocols: disabling IPv6 name/address support: Address ...rotocol Oct 26 18:40:35 vdevops.com postfix[9999]: /usr/sbin/postconf: warning: inet_protocols: disabling IPv6 name/address support: Address ...rotocol Oct 26 18:40:35 vdevops.com postfix[9999]: postsuper: warning: inet_protocols: disabling IPv6 name/address support: Address family no...rotocol Oct 26 18:40:35 vdevops.com postfix[9999]: /usr/sbin/postconf: warning: inet_protocols: disabling IPv6 name/address support: Address ...rotocol Oct 26 18:40:35 vdevops.com postfix/master[10071]: warning: inet_protocols: disabling IPv6 name/address support: Address family not s...rotocol Oct 26 18:40:35 vdevops.com postfix/master[10071]: warning: inet_protocols: disabling IPv6 name/address support: Address family not s...rotocol Oct 26 18:40:35 vdevops.com postfix/master[10071]: daemon started -- version 2.10.1, configuration /etc/postfix Oct 26 18:40:35 vdevops.com systemd[1]: Started Postfix Mail Transport Agent. Oct 26 18:40:35 vdevops.com postfix/qmgr[10073]: warning: inet_protocols: disabling IPv6 name/address support: Address family not sup...rotocol Oct 26 18:40:35 vdevops.com postfix/pickup[10072]: warning: inet_protocols: disabling IPv6 name/address support: Address family not s...rotocol Hint: Some lines were ellipsized, use -l to show in full.
