操作系统
1.CentOS 7.4 64位
连接 ECS
1.连接 ECS
ssh root@106.14.2.253
2. 输入密码
Welcome to Alibaba Cloud Elastic Compute Service !
安装 node
1.下载
wget https://nodejs.org/dist/v6.9.5/node-v6.9.5-linux-x64.tar.xz
显示:
--2018-07-17 10:15:11-- https://nodejs.org/dist/v6.9.5/node-v6.9.5-linux-x64.tar.xz 正在解析主机 nodejs.org (nodejs.org)... 104.20.22.46, 104.20.23.46, 2400:cb00:2048:1::6814:162e, ... 正在连接 nodejs.org (nodejs.org)|104.20.22.46|:443... 已连接。 已发出 HTTP 请求,正在等待回应... 200 OK 长度:9345888 (8.9M) [application/x-xz] 正在保存至: “node-v6.9.5-linux-x64.tar.xz” 100%[======================================================================================================================================================================================================================================>] 9,345,888 3.13MB/s 用时 2.9s 2018-07-17 10:15:16 (3.13 MB/s) - 已保存 “node-v6.9.5-linux-x64.tar.xz” [9345888/9345888])
2. 解压 tar xvf node-v6.9.5-linux-x64.tar.xz
。。。。。。。 node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/lodash.clonedeep/package.json node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/lodash.clonedeep/LICENSE node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/lodash.clonedeep/index.js node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/lodash.clonedeep/README.md node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/ node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/package.json node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/LICENSE node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/README.md node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/lib/ node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/lib/read.js node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/node_modules/ node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/node_modules/mute-stream/ node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/node_modules/mute-stream/package.json node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/node_modules/mute-stream/mute.js node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/node_modules/mute-stream/LICENSE node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/read/node_modules/mute-stream/README.md node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/inherits/ node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/inherits/inherits_browser.js node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/inherits/package.json node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/inherits/LICENSE node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/inherits/README.md node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/inherits/inherits.js node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/ node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/package.json node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/LICENSE node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/ChangeLog node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/index.js node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/README.md node-v6.9.5-linux-x64/lib/node_modules/npm/node_modules/umask/.npmignore
3.软链接
ln -s /root/node-v6.9.5-linux-x64/bin/node /usr/local/bin/node
4.软链接
ln -s /root/node-v6.9.5-linux-x64/bin/npm /usr/local/bin/npm
4. 查看版本号
node -v
npm -v
安装 git
yum install git
[root@izuf6dt5e7ronm1meixuipz ~]# yum install git 已加载插件:fastestmirror base | 3.6 kB 00:00:00 epel | 3.2 kB 00:00:00 extras | 3.4 kB 00:00:00 updates | 3.4 kB 00:00:00 (1/7): base/7/x86_64/group_gz | 166 kB 00:00:00 (2/7): epel/x86_64/group_gz | 88 kB 00:00:00 (3/7): epel/x86_64/updateinfo | 929 kB 00:00:00 (4/7): extras/7/x86_64/primary_db | 150 kB 00:00:00 (5/7): base/7/x86_64/primary_db | 5.9 MB 00:00:00 (6/7): epel/x86_64/primary | 3.5 MB 00:00:00 (7/7): updates/7/x86_64/primary_db | 3.6 MB 00:00:00 Determining fastest mirrors epel 12609/12609 正在解决依赖关系 --> 正在检查事务 ---> 软件包 git.x86_64.0.1.8.3.1-14.el7_5 将被 安装 --> 正在处理依赖关系 perl-Git = 1.8.3.1-14.el7_5,它被软件包 git-1.8.3.1-14.el7_5.x86_64 需要 --> 正在处理依赖关系 rsync,它被软件包 git-1.8.3.1-14.el7_5.x86_64 需要 --> 正在处理依赖关系 perl(Term::ReadKey),它被软件包 git-1.8.3.1-14.el7_5.x86_64 需要 --> 正在处理依赖关系 perl(Git),它被软件包 git-1.8.3.1-14.el7_5.x86_64 需要 --> 正在处理依赖关系 perl(Error),它被软件包 git-1.8.3.1-14.el7_5.x86_64 需要 --> 正在处理依赖关系 libgnome-keyring.so.0()(64bit),它被软件包 git-1.8.3.1-14.el7_5.x86_64 需要 --> 正在检查事务 ---> 软件包 libgnome-keyring.x86_64.0.3.12.0-1.el7 将被 安装 ---> 软件包 perl-Error.noarch.1.0.17020-2.el7 将被 安装 ---> 软件包 perl-Git.noarch.0.1.8.3.1-14.el7_5 将被 安装 ---> 软件包 perl-TermReadKey.x86_64.0.2.30-20.el7 将被 安装 ---> 软件包 rsync.x86_64.0.3.1.2-4.el7 将被 安装 --> 解决依赖关系完成 依赖关系解决 ================================================================================================================================================================================================================================================================================ Package 架构 版本 源 大小 ================================================================================================================================================================================================================================================================================ 正在安装: git x86_64 1.8.3.1-14.el7_5 updates 4.4 M 为依赖而安装: libgnome-keyring x86_64 3.12.0-1.el7 base 109 k perl-Error noarch 1:0.17020-2.el7 base 32 k perl-Git noarch 1.8.3.1-14.el7_5 updates 54 k perl-TermReadKey x86_64 2.30-20.el7 base 31 k rsync x86_64 3.1.2-4.el7 base 403 k 事务概要 ================================================================================================================================================================================================================================================================================ 安装 1 软件包 (+5 依赖软件包) 总下载量:5.0 M 安装大小:23 M Is this ok [y/d/N]: y Downloading packages: (1/6): perl-Error-0.17020-2.el7.noarch.rpm | 32 kB 00:00:00 (2/6): libgnome-keyring-3.12.0-1.el7.x86_64.rpm | 109 kB 00:00:00 (3/6): perl-TermReadKey-2.30-20.el7.x86_64.rpm | 31 kB 00:00:00 (4/6): perl-Git-1.8.3.1-14.el7_5.noarch.rpm | 54 kB 00:00:00 (5/6): rsync-3.1.2-4.el7.x86_64.rpm | 403 kB 00:00:00 (6/6): git-1.8.3.1-14.el7_5.x86_64.rpm | 4.4 MB 00:00:00 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 总计 22 MB/s | 5.0 MB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction 正在安装 : 1:perl-Error-0.17020-2.el7.noarch 1/6 正在安装 : rsync-3.1.2-4.el7.x86_64 2/6 正在安装 : perl-TermReadKey-2.30-20.el7.x86_64 3/6 正在安装 : libgnome-keyring-3.12.0-1.el7.x86_64 4/6 正在安装 : perl-Git-1.8.3.1-14.el7_5.noarch 5/6 正在安装 : git-1.8.3.1-14.el7_5.x86_64 6/6 验证中 : git-1.8.3.1-14.el7_5.x86_64 1/6 验证中 : libgnome-keyring-3.12.0-1.el7.x86_64 2/6 验证中 : perl-TermReadKey-2.30-20.el7.x86_64 3/6 验证中 : 1:perl-Error-0.17020-2.el7.noarch 4/6 验证中 : rsync-3.1.2-4.el7.x86_64 5/6 验证中 : perl-Git-1.8.3.1-14.el7_5.noarch 6/6 已安装: git.x86_64 0:1.8.3.1-14.el7_5 作为依赖被安装: libgnome-keyring.x86_64 0:3.12.0-1.el7 perl-Error.noarch 1:0.17020-2.el7 perl-Git.noarch 0:1.8.3.1-14.el7_5 perl-TermReadKey.x86_64 0:2.30-20.el7 rsync.x86_64 0:3.1.2-4.el7 完毕!
安装 nvm
-
直接使用git将源码克隆到本地的~/.nvm目录下,并检查最新版本。
- git clone https://github.com/cnpm/nvm.git ~/.nvm && cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`
-
激活NVM。
- echo ". ~/.nvm/nvm.sh" >> /etc/profile
-
直接使用git将源码克隆到本地的~/.nvm目录下,并检查最新版本。
-
激活NVM。
- echo ". ~/.nvm/nvm.sh" >> /etc/profile
- source /etc/profile
-
列出Node.js的所有版本。
- nvm list-remote
-
安装多个Node.js版本。
- nvm install v6.9.5
- nvm install v7.4.0
-
运行 nvm ls 查看已安装Node.js版本,当前使用的版本为v6.9.5。返回结果如下所示。
- [root@iZXXXXZ .nvm]# nvm ls
- v6.9.5
- -> v7.4.0
- system
- stable -> 7.4 (-> v7.4.0) (default)
- unstable -> 6.9 (-> v6.9.5) (default)
-
运行 nvm use v7.4.0 切换Node.js版本至v7.4.0。返回结果如下所示。
- [root@iZXXXXZ .nvm]# nvm use v7.4.0
- Now using node v7.4.0
安装 mysql
1.下载mysql源安装包
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
显示:
[root@izuf6dt5e7ronm1meixuipz ~]# wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm --2018-07-17 10:26:30-- http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm 正在解析主机 dev.mysql.com (dev.mysql.com)... 137.254.60.11 正在连接 dev.mysql.com (dev.mysql.com)|137.254.60.11|:80... 已连接。 已发出 HTTP 请求,正在等待回应... 301 Moved Permanently 位置:https://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm [跟随至新的 URL] --2018-07-17 10:26:31-- https://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm 正在连接 dev.mysql.com (dev.mysql.com)|137.254.60.11|:443... 已连接。 已发出 HTTP 请求,正在等待回应... 302 Found 位置:https://repo.mysql.com//mysql57-community-release-el7-8.noarch.rpm [跟随至新的 URL] --2018-07-17 10:26:32-- https://repo.mysql.com//mysql57-community-release-el7-8.noarch.rpm 正在解析主机 repo.mysql.com (repo.mysql.com)... 104.127.195.16 正在连接 repo.mysql.com (repo.mysql.com)|104.127.195.16|:443... 已连接。 已发出 HTTP 请求,正在等待回应... 200 OK 长度:9116 (8.9K) [application/x-redhat-package-manager] 正在保存至: “mysql57-community-release-el7-8.noarch.rpm” 100%[======================================================================================================================================================================================================================================>] 9,116 --.-K/s 用时 0s 2018-07-17 10:26:33 (210 MB/s) - 已保存 “mysql57-community-release-el7-8.noarch.rpm” [9116/9116])
2.安装mysql源
yum localinstall mysql57-community-release-el7-8.noarch.rpm
[root@izuf6dt5e7ronm1meixuipz ~]# yum localinstall mysql57-community-release-el7-8.noarch.rpm 已加载插件:fastestmirror 正在检查 mysql57-community-release-el7-8.noarch.rpm: mysql57-community-release-el7-8.noarch mysql57-community-release-el7-8.noarch.rpm 将被安装 正在解决依赖关系 --> 正在检查事务 ---> 软件包 mysql57-community-release.noarch.0.el7-8 将被 安装 --> 解决依赖关系完成 依赖关系解决 ================================================================================================================================================================================================================================================================================ Package 架构 版本 源 大小 ================================================================================================================================================================================================================================================================================ 正在安装: mysql57-community-release noarch el7-8 /mysql57-community-release-el7-8.noarch 8.2 k 事务概要 ================================================================================================================================================================================================================================================================================ 安装 1 软件包 总计:8.2 k 安装大小:8.2 k Is this ok [y/d/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction 正在安装 : mysql57-community-release-el7-8.noarch 1/1 验证中 : mysql57-community-release-el7-8.noarch 1/1 已安装: mysql57-community-release.noarch 0:el7-8 完毕!
3.检查mysql源是否安装成功
yum repolist enabled | grep "mysql.*-community.*"
[root@izuf6dt5e7ronm1meixuipz ~]# yum repolist enabled | grep "mysql.*-community.*" mysql-connectors-community/x86_64 MySQL Connectors Community 51 mysql-tools-community/x86_64 MySQL Tools Community 63 mysql57-community/x86_64 MySQL 5.7 Community Server 267
4.安装Mysql
yum install mysql-community-server
[root@izuf6dt5e7ronm1meixuipz ~]# yum install mysql-community-server 已加载插件:fastestmirror Loading mirror speeds from cached hostfile 正在解决依赖关系 --> 正在检查事务 ---> 软件包 mysql-community-server.x86_64.0.5.7.22-1.el7 将被 安装 --> 正在处理依赖关系 mysql-community-common(x86-64) = 5.7.22-1.el7,它被软件包 mysql-community-server-5.7.22-1.el7.x86_64 需要 --> 正在处理依赖关系 mysql-community-client(x86-64) >= 5.7.9,它被软件包 mysql-community-server-5.7.22-1.el7.x86_64 需要 --> 正在处理依赖关系 libaio.so.1(LIBAIO_0.4)(64bit),它被软件包 mysql-community-server-5.7.22-1.el7.x86_64 需要 --> 正在处理依赖关系 libaio.so.1(LIBAIO_0.1)(64bit),它被软件包 mysql-community-server-5.7.22-1.el7.x86_64 需要 --> 正在处理依赖关系 libaio.so.1()(64bit),它被软件包 mysql-community-server-5.7.22-1.el7.x86_64 需要 --> 正在检查事务 ---> 软件包 libaio.x86_64.0.0.3.109-13.el7 将被 安装 ---> 软件包 mysql-community-client.x86_64.0.5.7.22-1.el7 将被 安装 --> 正在处理依赖关系 mysql-community-libs(x86-64) >= 5.7.9,它被软件包 mysql-community-client-5.7.22-1.el7.x86_64 需要 ---> 软件包 mysql-community-common.x86_64.0.5.7.22-1.el7 将被 安装 --> 正在检查事务 ---> 软件包 mariadb-libs.x86_64.1.5.5.56-2.el7 将被 取代 --> 正在处理依赖关系 libmysqlclient.so.18()(64bit),它被软件包 2:postfix-2.10.1-6.el7.x86_64 需要 --> 正在处理依赖关系 libmysqlclient.so.18(libmysqlclient_18)(64bit),它被软件包 2:postfix-2.10.1-6.el7.x86_64 需要 ---> 软件包 mysql-community-libs.x86_64.0.5.7.22-1.el7 将被 舍弃 --> 正在检查事务 ---> 软件包 mysql-community-libs-compat.x86_64.0.5.7.22-1.el7 将被 舍弃 --> 解决依赖关系完成 依赖关系解决 ================================================================================================================================================================================================================================================================================ Package 架构 版本 源 大小 ================================================================================================================================================================================================================================================================================ 正在安装: mysql-community-libs x86_64 5.7.22-1.el7 mysql57-community 2.1 M 替换 mariadb-libs.x86_64 1:5.5.56-2.el7 mysql-community-libs-compat x86_64 5.7.22-1.el7 mysql57-community 2.0 M 替换 mariadb-libs.x86_64 1:5.5.56-2.el7 mysql-community-server x86_64 5.7.22-1.el7 mysql57-community 165 M 为依赖而安装: libaio x86_64 0.3.109-13.el7 base 24 k mysql-community-client x86_64 5.7.22-1.el7 mysql57-community 24 M mysql-community-common x86_64 5.7.22-1.el7 mysql57-community 274 k 事务概要 ================================================================================================================================================================================================================================================================================ 安装 3 软件包 (+3 依赖软件包) 总下载量:193 M Is this ok [y/d/N]: y Downloading packages: (1/6): libaio-0.3.109-13.el7.x86_64.rpm | 24 kB 00:00:00 warning: /var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.22-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY ] 0.0 B/s | 24 kB --:--:-- ETA mysql-community-common-5.7.22-1.el7.x86_64.rpm 的公钥尚未安装 (2/6): mysql-community-common-5.7.22-1.el7.x86_64.rpm | 274 kB 00:00:00 (3/6): mysql-community-libs-5.7.22-1.el7.x86_64.rpm | 2.1 MB 00:00:00 (4/6): mysql-community-libs-compat-5.7.22-1.el7.x86_64.rpm | 2.0 MB 00:00:00 (5/6): mysql-community-client-5.7.22-1.el7.x86_64.rpm | 24 MB 00:00:02 (6/6): mysql-community-server-5.7.22-1.el7.x86_64.rpm | 165 MB 00:00:12 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 总计 14 MB/s | 193 MB 00:00:14 从 file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql 检索密钥 导入 GPG key 0x5072E1F5: 用户ID : "MySQL Release Engineering <mysql-build@oss.oracle.com>" 指纹 : a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5 软件包 : mysql57-community-release-el7-8.noarch (installed) 来自 : /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql 是否继续?[y/N]:y Running transaction check Running transaction test Transaction test succeeded Running transaction 正在安装 : mysql-community-common-5.7.22-1.el7.x86_64 1/7 正在安装 : mysql-community-libs-5.7.22-1.el7.x86_64 2/7 正在安装 : mysql-community-client-5.7.22-1.el7.x86_64 3/7 正在安装 : libaio-0.3.109-13.el7.x86_64 4/7 正在安装 : mysql-community-server-5.7.22-1.el7.x86_64 5/7 正在安装 : mysql-community-libs-compat-5.7.22-1.el7.x86_64 6/7 正在删除 : 1:mariadb-libs-5.5.56-2.el7.x86_64 7/7 验证中 : mysql-community-libs-compat-5.7.22-1.el7.x86_64 1/7 验证中 : mysql-community-common-5.7.22-1.el7.x86_64 2/7 验证中 : mysql-community-server-5.7.22-1.el7.x86_64 3/7 验证中 : mysql-community-client-5.7.22-1.el7.x86_64 4/7 验证中 : mysql-community-libs-5.7.22-1.el7.x86_64 5/7 验证中 : libaio-0.3.109-13.el7.x86_64 6/7 验证中 : 1:mariadb-libs-5.5.56-2.el7.x86_64 7/7 已安装: mysql-community-libs.x86_64 0:5.7.22-1.el7 mysql-community-libs-compat.x86_64 0:5.7.22-1.el7 mysql-community-server.x86_64 0:5.7.22-1.el7 作为依赖被安装: libaio.x86_64 0:0.3.109-13.el7 mysql-community-client.x86_64 0:5.7.22-1.el7 mysql-community-common.x86_64 0:5.7.22-1.el7 替代: mariadb-libs.x86_64 1:5.5.56-2.el7 完毕!
5.启动MySQL服务
systemctl start mysqld
6.查看MySQL启动状态
systemctl status mysqld
[root@izuf6dt5e7ronm1meixuipz ~]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since 二 2018-07-17 10:33:26 CST; 30s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 1448 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 1374 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 1451 (mysqld) CGroup: /system.slice/mysqld.service └─1451 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid 7月 17 10:33:22 izuf6dt5e7ronm1meixuipz systemd[1]: Starting MySQL Server... 7月 17 10:33:26 izuf6dt5e7ronm1meixuipz systemd[1]: Started MySQL Server. [root@izuf6dt5e7ronm1meixuipz ~]#
7.设置MySQL开机启动
systemctl enable mysqld
systemctl daemon-reload
8.修改root密码
8.1 查看默认密码
grep 'temporary password' /var/log/mysqld.log
[root@izuf6dt5e7ronm1meixuipz ~]# grep 'temporary password' /var/log/mysqld.log 2018-07-17T02:33:24.001978Z 1 [Note] A temporary password is generated for root@localhost: kbY0Xw3gf>)e
8.2 修改密码(密码输入上一步的默认密码)
[root@izuf6dt5e7ronm1meixuipz ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 3
Server version: 5.7.22
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
mysql>
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '密码';
Query OK, 0 rows affected (0.00 sec)
mysql> set password for 'root'@'localhost'=password('密码');
8.3密码不符合规范报错:
mysql5.7默认安装了密码安全检查插件(validate_password),默认密码检查策略要求密码必须包含:大小写字母、数字和特殊符号,并且长度不能少于8位。否则会提示ERROR 1819 (HY000)
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
8.4查看密码策略:
mysql> show variables like '%password%'; +---------------------------------------+--------+ | Variable_name | Value | +---------------------------------------+--------+ | default_password_lifetime | 0 | | disconnect_on_expired_password | ON | | log_builtin_as_identified_by_password | OFF | | mysql_native_password_proxy_users | OFF | | old_passwords | 0 | | report_password | | | sha256_password_proxy_users | OFF | | validate_password_check_user_name | OFF | | validate_password_dictionary_file | | | validate_password_length | 8 | | validate_password_mixed_case_count | 1 | | validate_password_number_count | 1 | | validate_password_policy | MEDIUM | | validate_password_special_char_count | 1 | +---------------------------------------+--------+ 14 rows in set (0.01 sec)
8.5如果不需要密码策略,添加my.cnf文件中添加如下配置禁用即可:
validate_password = off
8.6重新启动mysql服务使配置生效:
systemctl restart mysqld
MySQL使用
例:
2、在MySQL-Front中新建你要建的数据库,这时只是空数据库:
3、使用创建的数据库:
例:
4、导入文件:
例:
测试 ECS
新建文件hello.js。
cd ~
touch hello.js
2.使用vim编辑器打开
yum install vim vim hello.js
输入 i
,进入编辑模式
使用Esc
按钮,退出编辑模式,输入:wq
,回车,保存文件内容并退出。
const http = require('http'); const hostname = '0.0.0.0'; const port = 80; const server = http.createServer((req, res) => { res.statusCode = 200; res.setHeader('Content-Type', 'text/plain'); res.end('Hello World '); }); server.listen(port, hostname, () => { console.log(`Server running at http://${hostname}:${port}/`); });
3.运行
node ~/hello.js