1 图形化界面

承灿 2023/8/27

# 1 图形化界面

# 1.1 设置开启默认启动图形界面：输入命令：

systemctl set-default graphical.target(图形界面)
reboot(重启系统)

# 1.2.设置开启默认启动命令符界面：输入命令：

systemctl set-default multi-user.target

(字符界面模式)

# 2 虚拟机网络bug

上面这个bug在配置三台虚拟机间的网络通讯时发生的，配置静态ip

命令：systemctl status network.service 
 network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2017-08-04 08:20:31 CST; 1min 44s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 62726 ExecStop=/etc/rc.d/init.d/network stop (code=exited, status=0/SUCCESS)
  Process: 63183 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)

Aug 04 08:20:31 CT71 network[63183]: RTNETLINK answers: File exists
Aug 04 08:20:31 CT71 network[63183]: RTNETLINK answers: File exists
Aug 04 08:20:31 CT71 network[63183]: RTNETLINK answers: File exists
Aug 04 08:20:31 CT71 network[63183]: RTNETLINK answers: File exists
Aug 04 08:20:31 CT71 network[63183]: RTNETLINK answers: File exists
Aug 04 08:20:31 CT71 network[63183]: RTNETLINK answers: File exists
Aug 04 08:20:31 CT71 systemd[1]: network.service: control process exited, code=exited status=1
Aug 04 08:20:31 CT71 systemd[1]: Failed to start LSB: Bring up/down networking.
Aug 04 08:20:31 CT71 systemd[1]: Unit network.service entered failed state.
Aug 04 08:20:31 CT71 systemd[1]: network.service failed.

# 2.1 解决办法

停止网络

systemctl stop NetworkManager

systemctl disable NetworkManager

systemctl start network.service

# 3 配置静态固定ip

vim /etc/sysconfig/network-scripts/ifcfg-ens32

# 3.1 修改配置信息

修改下图红框中的信息

BOOTPROTO=static
ONBOOT=yes
# IP和网关去虚拟机网络里面找
# ip前三位和虚拟机保持一致，最后一位随便取一个没人用的
IPADDR=192.168.104.xxx 
GATEWAY=192.168.104.2
# dns用谷歌的、和114国内的
DNS1=8.8.8.8
DNS2=114.114.114.114