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打赏 jQuery火箭图标返回顶部代码</h1> <div style="border: 1px solid #dfdfdf;border-top:none;"></div> <div style=" height: 200px; overflow:hidden;"> <div id="cnblogs_post_body" class="blogpost-body"> <h2>MySQl介绍</h2> 官方站点：<a href="http://www.mysql.com/" target="_blank">http://www.mysql.com/</a> MySQL是一个开放源码的小型关联式数据库管理系统。目前MySQL被广泛地应用在Internet上的中小型网站中。由于其体积小、速度快、总体拥有成本低，尤其是开放源码这一特点，许多中小型网站为了降低网站总体拥有成本而选择了MySQL作为网站数据库。 MySQl数据库分类 1）社区版 2）商业版 3）cluster集群 <h2>一.安装简介</h2> <h4>1）创建mysql用户的账号</h4> 首先以root身份登录到Linux系统中，然后执行如下命令创建mysql组及用户账号： <div class="cnblogs_code"> <pre>1 [root@king ~]# groupadd mysql 2 [root@king ~]# useradd -s /sbin/nologin -g mysql -M mysql</pre> </div> <table id="1" style="border: 0 solid rgba(34, 220, 57, 1); background-color: rgba(210, 218, 218, 1); height: 111px; 1086px" border="0" cellspacing="1"> <tbody> <tr><th>useradd命令的参数简要说明</th></tr> <tr> <td>　　　　-s/sbin/nologin表示禁止该用户登录，只需要角色存在即可，加强安全。</td> </tr> <tr> <td>　　　　-g mysql指定mysql用户属于mysql组。</td> </tr> <tr> <td>　　　　-M表示不创建用户家目录，因为没有需要。</td> </tr> <tr> <td>　　　　groupadd和useradd这两条命令也可以用useradd-s/sbin/nologin-M mysql替代。</td> </tr> </tbody> </table> 然后检查刚刚创建的mysql用户和组，如下： <div class="cnblogs_code"> <pre>1 [root@king ~]# tail -1 /etc/passwd 2 mysql：x：501：501：：/home/mysql：/sbin/nologin 3 [root@king ~]# id mysql 4 uid=501（mysql）gid=501（mysql）组=501（mysql）</pre> </div> 现在建立一个存放所有安装软件的固定目录，如下： <div class="cnblogs_code"> <pre>1 [root@king ~]# mkdir -p /home/king/tools 2 [root@king ~]# cd /home/king/tools/</pre> </div> <h2>二.获取MySQL软件包</h2> 1.MySQL软件包的下载地址为： <a title="mysql下载教程" target="_blank">https://dev.mysql.com/</a> ，<a href="https://www.cnblogs.com/liang-io/p/9492371.html" target="_blank">官网下载示例点我</a>， 2.现在以rz命令从本地安装来演示部署过程，执行时如提示无rz命令，可先执行yum install lrzsz-y安装，如下： <div class="cnblogs_code"> <pre>1 [root@king tools]# cd /home/oldboy/tools/ 2 [root@king tools]# rz 3 rz waiting to receive.开始zmodem传输。按Ctrl+C取消正在传输mysql-5.5.32-linux2.6-x86_64.tar.gz... 4 100% 182346 KB 5525 KB/s 00：00：11 0 错误 5 [root@king tools]# ls -sh mysql-5.5.32-linux2.6-x86_64.tar.gz 6 179M mysql-5.5.32-linux2.6-x86_64.tar.gz</pre> </div> <div class="msg-text normal-text"> <div class="origin-content">三　采用二进制方式安装MySQL （1）解压并移动MySQL二进制软件包到指定的安装路径，命令如下：</div> <div class="origin-content"> <div class="cnblogs_code"> <pre>1 [root@king tools]# tar xf mysql-5.7.32-linux2.6-x86_64.tar.gz 2 #<==解压 3 [root@king tools]# mkdir -p /application/ #<==创建安装目录，如果有就不用创建了 4 [root@king tools]# mv mysql-5.7.32-linux2.6-x86_64 /application/mysql-5.7.32 5 #<==移动并改名目录</pre> </div> （2）创建软链接，生成去掉版本号的访问路径并查看，命令如下：</div> <div class="origin-content"> <div class="cnblogs_code"> <pre>1 [root@king tools]# ln -s /application/mysql-5.7.32/ /application/mysql</pre> </div> </div> <div class="origin-content"> <h2>三.初始化MySQL数据库文件</h2> 初始化命令如下：</div> <div class="origin-content"> <div class="cnblogs_code"> <pre> 1 [root@king mysql]# mkdir -p /application/mysql/data 2 #<==建立MySQL数据文件目录 3 [root@king mysql]# chown -R mysql.mysql /application/mysql/ 4 #<==授权mysql用户管理MySQL的安装目录 5 [root@king mysql]# /application/mysql/scripts/mysql_install_db --basedir= 6 /application/mysql --datadir=/application/mysql/data --user=mysql 7 #<==初始化MySQL数据库文件，会有很多信息提示，如果没有ERROR级别 8 的错误，会有两个OK的字样，表示初始化成功，否则就要解决初始化的问题 9 WARNING： The host 'www' could not be looked up with resolveip. 10 This probably means that your libc libraries are not 100 % compatible 11 with this binary MySQL version. The MySQL daemon，mysqld，should work 12 normally with the exception that host name resolving will not work. 13 This means that you should use IP addresses instead of hostnames 14 when specifying MySQL privileges ！ 15 Installing MySQL system tables... 16 OK 17 Filling help tables... 18 OK 19 To start mysqld at boot time you have to copy 20 support-files/mysql.server to the right place for your system 21 PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER ！ 22 To do so，start the server，then issue the following commands： 23 /application/mysql/bin/mysqladmin -u root password 'new-password' 24 /application/mysql/bin/mysqladmin -u root -h www password 'new-password' 25 Alternatively you can run： 26 /application/mysql/bin/mysql_secure_installation 27 which will also give you the option of removing the test 28 databases and anonymous user created by default. This is 29 strongly recommended for production servers. 30 See the manual for more instructions. 31 You can start the MySQL daemon with： 32 cd /application/mysql；/application/mysql/bin/mysqld_safe & 33 You can test the MySQL daemon with mysql-test-run.pl 34 cd /application/mysql/mysql-test；perl mysql-test-run.pl 35 Please report any problems with the /application/mysql/scripts/mysqlbug script！</pre> </div> </div> <div class="origin-content"> <h2>四.初始化故障排错集锦</h2> 错误示例1：WARNING：The host'mysql'could not be looked up with resolveip. 需修改主机名的解析，使其和uname-n一样，修改后的结果如下：</div> <div class="origin-content"> <div class="cnblogs_code"> <pre>1 [root@king mysql]# grep `uname -n` /etc/hosts 2 127.0.0.1 www localhost.localdomain localhost</pre> </div> 错误示例2：ERROR：1004 Can't create file'/tmp/#sql300e_1_0.frm'（errno：13）</div> <div class="origin-content">原因是/tmp目录的权限有问题。 解决办法为处理/tmp目录，如下：</div> <div class="origin-content"> <div class="cnblogs_code"> <pre>1 [root@king mysql]# ls -ld /tmp 2 drwxrwxrwt. 4 root root 4096 Aug 17 11：44 /tmp 3 [root@king mysql]# chmod -R 4777 /tmp/</pre> </div> </div> <div class="origin-content"> <h2>五.配置并启动MySQL</h2> <h4>1）设置MySQL启动脚本，如下：</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# cp support-files/mysql.server /etc/init.d/mysqld 2 #<==拷贝MySQL启动脚本到MySQL的命令路径 3 [root@king mysql]# chmod +x /etc/init.d/mysqld 4 #<==使脚本可执行</pre> </div> <h4>2）MySQL二进制默认安装路径是/usr/local/mysql，启动脚本里是/usr/local/mysql的路径都需要替换，如下：</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# sed -i 's#/usr/local/mysql#/application/mysql#g' /application/mysql/bin/mysqld_safe /etc/init.d/mysqld</pre> </div> <h4>3）启动MySQL数据库，如下：</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# sed -i 's#/usr/local/mysql#/application/mysql#g' /application/mysql/bin/mysqld_safe /etc/init.d/mysqld</pre> </div> <h4>4）检查MySQL数据库是否启动，如下：</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# netstat -lntup|grep mysql 2 tcp 0 0 0.0.0.0：3306 0.0.0.0：* LISTEN 9446/mysqld</pre> </div> <h4>5)设置MySQL开机自起动，如下：</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# chkconfig --add mysqld 2 [root@king mysql]# chkconfig mysqld on 3 [root@king mysql]# chkconfig --list mysqld 4 mysqld 0：off 1：off 2：on 3：on 4：on 5：on 6：off</pre> </div> <h4>6)配置mysql命令的全局使用路径，如下：</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# echo 'export PATH=/application/mysql/bin：$PATH' >>/etc/profile 2 #<==注意，echo后是单引号，双引号是不行滴。 3 [root@king mysql]# tail -1 /etc/profile 4 export PATH=/application/mysql/bin：$PATH 5 [root@king mysql]# source /etc/profile 6 #<==执行source使上一行添加到/etc/profile中的内容直接生效。</pre> </div> <h4>7)登陆MySQL数据库，如下</h4> <div class="cnblogs_code"> <pre>1 [root@king mysql]# mysql #<==直接敲就进入数据库了，而且身份还是root</pre> </div> <h2>六.MySQl安全配置</h2> <div class="msg-text normal-text"> <div class="origin-content"> <h4>为MySQL的root用户设置密码，命令如下：</h4> <div class="cnblogs_code"> <pre> 1 [root@king mysql]# mysqladmin -u root password 'liang123' #<==更改默认密码。 2 [root@king mysql]# mysql #<==无法直接登录了 3 ERROR 1045（28000）： Access denied for user 'root'@'localhost'（using password： NO） 4 [root@king mysql]# mysql -uroot -p #<==新的登录方式 5 Enter password： #<==输入新密码liang123 6 Welcome to the MySQL monitor. Commands end with；or g. 7 Your MySQL connection id is 4 8 Server version： 5.7.32 MySQL Community Server（GPL） 9 Copyright（c）2000，2018，Oracle and/or its affiliates. All rights reserved. 10 Oracle is a registered trademark of Oracle Corporation and/or its 11 affiliates. Other names may be trademarks of their respective 12 owners. 13 Type 'help；' or 'h' for help. Type 'c' to clear the current input statement. 14 mysql></pre> </div> </div> </div> </div> </div> </div> </div> <div style="text-align: center;"> <a href="https://www.cnblogs.com/liang-io/p/9492636.html" target="_blank" style="font-size: 16px;background-color: rgb(24, 144, 255); color: white;padding: 8px;padding-left: 30px;padding-right: 30px;border-radius: 2rem;">查看全文</a> </div> </li> <div style="border: 1px solid #dfdfdf;border-top:none;"></div> <li class="ul-li" style="padding-left:15px;padding-right: 15px;"> 相关阅读: <a href="qswx-p-9155685.html" target="_blank">魔法阵</a> <a href="qswx-p-9155674.html" target="_blank">求和</a> <a href="qswx-p-9155666.html" target="_blank">罗马数字</a> <a href="qswx-p-8445438.html" target="_blank">「NOIP2005P」循环</a> <a href="caixu-p-3163899.html" target="_blank">【Windows批处理III】实现删除含自定字符串的文件和文件夹（搜索子目录）</a> <a href="543Studio-p-5157524.html" target="_blank">扩展欧几里得算法</a> <a href="543Studio-p-5157479.html" target="_blank">埃氏筛法(素数筛)</a> <a href="shanpao-p-7635912.html" target="_blank">python学习之argparse模块</a> <a href="Extended-Ash-p-9477087.html" target="_blank">51Nod1364 最大字典序排列</a> <a href="Extended-Ash-p-9477088.html" target="_blank">51Nod1537 分解</a> </li> <div style="border: 1px solid #dfdfdf;border-top:none;"></div> <li class="list-group-item from-a mb-2" style="margin:15px;"> 原文地址：https://www.cnblogs.com/liang-io/p/9492636.html </li> </ul> </div>  <div class="right-kd" style="margin: auto;margin: 0px;float: left;"> <ul class="right-kd" style="word-break:break-all;border: 1px solid #dfdfdf;border-radius: 3px 3px 3px 3px;padding: 0px;margin: 0px;"> <li class="ul-li-bg ul-li-title" aria-current="true" style="padding-left:15px;padding-right: 15px;"> 最新文章 </li> <li class="ul-li" style="padding-left:15px;padding-right:15px;"> <a href="Johnon-p-5736993.html" target="_blank">H5部分常见表单样式总汇</a> <a href="Johnon-p-5729620.html" target="_blank">表格内容位置你想往哪放？</a> <a href="Johnon-p-5724698.html" target="_blank">智能表单-使用datalist元素填写URL地址</a> <a href="Johnon-p-5721784.html" target="_blank">关于H5表格布局问题的探究</a> <a href="Johnon-p-5717243.html" target="_blank">关于H5标签和图像热区的问题</a> <a href="qswx-p-9492427.html" target="_blank">跳石头</a> <a href="qswx-p-9492397.html" target="_blank">关押罪犯</a> <a href="qswx-p-9418946.html" target="_blank">雇佣计划</a> <a href="qswx-p-9411318.html" target="_blank">光荣的梦想</a> <a href="qswx-p-9411313.html" target="_blank">循环比赛</a> </li> </ul> <ul class="right-kd" style="word-break:break-all;border: 1px solid #dfdfdf;border-radius: 3px 3px 3px 3px;padding: 0px;margin-top: 10px;"> <li class="list-group-item ul-li-bg ul-li-title" aria-current="true" style="padding-left:15px;padding-right: 15px;"> 热门文章 </li> <li class="ul-li" style="padding-left:15px;padding-right: 15px;"> <a href="qswx-p-9411310.html" target="_blank">聪明的质检员</a> <a href="qswx-p-9309718.html" target="_blank">三国游戏</a> <a href="qswx-p-9309715.html" target="_blank">智力大冲浪</a> <a href="qswx-p-9308530.html" target="_blank">最大乘积</a> <a href="qswx-p-9308526.html" target="_blank">「noip2012」国王游戏</a> <a href="qswx-p-9308521.html" target="_blank">计数器</a> <a href="qswx-p-9308523.html" target="_blank">几种走法</a> <a href="qswx-p-9308516.html" target="_blank">编码</a> <a href="qswx-p-9155689.html" target="_blank">2*3n骨牌问题</a> <a href="qswx-p-9155679.html" target="_blank">电力篱笆</a> </li> </ul> </div> </div> </div> <div style="clear: both;"></div>  <div class="kd" style="margin: auto;"> <div style="font-size:0.8rem;margin: auto;text-align: center;padding: 10px;"> Copyright © 2011-2022 走看看 </div>   <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https'){ bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else{ bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script>  </div> </div> <script src="https://common.cnblogs.com/scripts/jquery-2.2.0.min.js"></script> <script src="https://www.cnblogs.com/js/blog-common.min.js"></script> <script src="http://common.cnblogs.com/script/encoder.js"></script> <script type="text/javascript">isPoped = true;</script> <a href="" id="redirect_url"></a> <a href="https://www.cnblogs.com/liang-io/p/9492636.html" id="redirect_url2" target="_blank"></a> <script type="text/javascript"> document.onclick = function() { if (!isPoped) { document.getElementById("redirect_url").click(); document.getElementById("redirect_url2").click(); isPoped = true; } } </script> </body> </html>