一个新服务器操作

 1.初始化 sudo apt update
 2.安装node --方法未知
	# apt-get update
	# apt-get install -y python-software-properties software-properties-common
	# add-apt-repository ppa:chris-lea/node.js
	# apt-get update
	# apt-get install nodejs
	 
 3.node -安装最新版本的node
 curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
 sudo apt-get install -y nodejs

4. npm 安装
 sudo apt install npm
 更新npm的包镜像源,方便快速下载
 sudo npm config set registry https://registry.npm.taobao.org
 sudo npm config list

5. 克隆代码git clone https:xxx

6. pm2 下载
npm install pm2 -g

7. yarn 安装
 
 //步骤1.添加GPG密钥
 curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
 //步骤2.添加Yarn存储库
 deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
 //步骤3.更新包列表并安装Yarn
 sudo apt update
sudo apt install yarn
8.如果您的系统上尚未安装 Node.js,则上面的命令将安装它。 那些使用 nvm 的人可以跳过 Node.js 安装
sudo apt install --no-install-recommends yarn

nginx配置

个人配置 /etc/nginx/conf.d/www.conf 
无论写在conf.d 或者 sites-enables 两者相同写完之后重新启动下 sudo nginx -s reload
server {
    listen	80;  //80端口不需要添加端口号19950之类的
    server_name	www.chen1995.com或者服务器ip地址;
    location / {
##	proxy_pass	http://127.0.0.1:19950;
 	root /root/micystore/dist; //项目打包的dist目录
  }

     location /manage {
        proxy_pass      http://127.0.0.1:6600;
##	root /root/micystore/dist;
    }
}



mysql有关的。
	
报错1:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'

解决方案:
	1:首先检查是否安装了mysql-server了 

     sudo apt-get install mysql-server to install mysql on ubuntu, 如果mysql-server已经存在了,那么在去尝试一下是否成功,如果还是这个错误的话那么就是文件/var/run/mysqld/mysqld.sock 不存在。

   2:如果/var/run/mysqld/mysqld.sock文件不存在应该怎么办?
       执行 vim   /etc/mysql/my.cnf
       
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
你的mysql的配置在/etc/mysql/mysql.conf.d目录下的mysqld.cnf文件,打开如下:
  可以看到:bind-address = 127.0.0.1      socket = /var/run/mysqld/mysqld.sock  等信息

   

   我的虚拟机是/var/run下面没有mysqld目录,执行下面命令,然后目录和sock文件就都有了

sudo mkdir -p /var/run/mysqld
sudo chown mysql /var/run/mysqld/
sudo service mysql restart
现在就都有了:

然后执行:mysql -u root -p   然后提示你输入密码,即可, 如下图所示:

  就可以了




报错2: 2003报错。

因为我的服务器是新服务器。所以没有设置mysql 白名单。链接不上去就是没有设置白名单

```bash
MySQL设置白名单教程--我个人操作登录
1 登录mysql

mysql -h host -u username -p password
 

2 切换至mysql库---

use mysql;
 

3 查看当前允许登录IP及用户

select Host,User from user;
 

4 删除不必要而表中存在的IP和用户

DELETE FROM user WHERE User='username' and Host='host';
(host值为“%”或空表示所有IP都可登录,一般来说此类行需要删掉)

 

5 增加需要而表中没有的IP和用户
/*
* username : 我的username 是root
*  host : 我的host 是 本机IP地址
*  password : 我的password 是服务器mysql-密码 
*/

GRANT ALL PRIVILEGES ON *.* TO 'username'@'host' IDENTIFIED BY 'password' WITH GRANT OPTION;
 

6 使更新的配置生效

FLUSH PRIVILEGES;

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