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上车！GBase 8a开发者联盟发车了 技术福利、人脉资源全都有！

认证培训专区

认证培训资料

GBase 8s GDCA 认证培训课前准备

GBase 8a

其他

物化视图报错：references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them

01-GBase 8s 事务型数据库 安装与卸载

GBase 8s

适配迁移

[GBase 8s 教程]GBase 8s 常用函数、表达式

1、配置yum源，使用阿里镜像  
```shell
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
```
2、安装Linux图形桌面
```shell
yum -y groups install "GNOME Desktop"
```
3、设置服务器启动到图形界面并重启
```shell
mv /etc/systemd/system/default.target /etc/systemd/system/default.target.bak
ln -sf /lib/systemd/system/runlevel5.target /etc/systemd/system/default.target
```





4、关闭防火墙及selinux，重启
```shell
systemctl stop firewalld
systemctl disable firewalld
sed -i "s#^SELINUX.*#SELINUX disabled#g" /etc/selinux/config
reboot
```
5、安装vncserver
```shell
yum install tigervnc-server -y
```
6、设置vnc密码
```shell
vncpasswd
Password:GBase123
Verify:
Would you like to enter a view-only password (y/n)? n
A view-only password is not used
```
7、设置服务
```shell
cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service
```
8、修改此服务配置
```shell
vim /etc/systemd/system/vncserver@\:1.service
```
```text
[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
Type=forking
User=root

ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/sbin/runuser -l root -c "/usr/bin/vncserver %i -geometry 1280x1024"
PIDFile=/root/.vnc/%H%i.pid 
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target
```

9、加载服务
```shell
systemctl daemon-reload
```
10、启动服务
```shell
systemctl start vncserver@:1
systemctl enable vncserver@:1 
```
11、在windows使用vnc viewer连接linux
官方下载地址：https://www.realvnc.com/en/connect/download/viewer/
输入格式：IP::端口，如192.168.1.1::5901
密码为第6步设置的密码


其他：修改vnc端口：
```shell
vi /usr/bin/vncserver
```
```text
$vncPort = 5900 + $displayNumber;
```

Centos7.x 安装VNC远程桌面

Centos7.x 安装VNC远程桌面

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