时光囚徒 發表於 2023-12-4 00:00:00

阿里云云服务器mysql密码找回的方法

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        首先,如果你是刚刚安装mysql,密码就是他给的随机密码,可以通过路径为<code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>/var/log/mysqld.log </code></p>
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        cd 到指定目录</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>cd /var/log</code></p>
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        然后</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>vi mysqld.log</code></p>
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        查看日志文件中的</p>
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        A temporary password is generated for root@localhost:</p>
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        后面部分的内容,就是首次给你的随机密码</p>
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        <font color="#428bca"><span><img title="阿里云云服务器mysql密码找回的方法" alt="阿里云云服务器mysql密码找回的方法" src="https://zhuji.jb51.net/uploads/img/202305/f2edbf869c3debe2c81afff01bdeff67.jpg"></span></font></p>
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        一般来说,因为是安装后首次给你的所以是在最上面部分的,当然也可以搜索。</p>
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        这样知道密码后就可以正常登录mysql 数据库了。</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>mysql -u root -p</code></p>
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        这里输入你刚刚找到的密码</p>
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        ----------------------------------------------------------------------------------</p>
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        当然如果 你不是第一次的随机密码忘记了的话,当然还有其他方法,如下:</p>
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        尝试修改mysql的配置文件,绕过mysql 的密码检测,登录成功后再修改密码。</p>
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        配置文件</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>/etc/my.cnf</code></p>
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        所以</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>cd /etc</code></p>
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        然后</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>vi my.cnf</code></p>
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        找到段,使光标停留在段中任意处</p>
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        按下o(进入插入模式并从新的一行开始输入)</p>
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        使用键盘输入</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>skip-grant-tables</code></p>
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        按下键盘的冒号“:”(返回底行模式),并输入wq(表示保存并退出)按回车。</p>
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        <font color="#428bca"><span><img title="阿里云云服务器mysql密码找回的方法" alt="阿里云云服务器mysql密码找回的方法" src="https://zhuji.jb51.net/uploads/img/202305/f4eac119ff2aa13c26558ba972299681.jpg"></span></font></p>
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        <font color="#428bca"><span><img title="阿里云云服务器mysql密码找回的方法" alt="阿里云云服务器mysql密码找回的方法" src="https://zhuji.jb51.net/uploads/img/202305/7ca974283e00c4c5475ce7214b5a4eca.jpg"></span></font></p>
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        终端输入:</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>service mysqld restart</code></p>
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        将其重启</p>
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        然后就可以不用密码登入mysql了</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>mysql -u root -p</code></p>
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        直接回车</p>
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        进入到mysql里面来了,可以修改密码了</p>
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        <pre class="brush:sql;">
use mysql
update mysql.user set authentication_string=password('自己设置') where user='root';</pre>
</div>
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        然后保存</p>
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        <pre class="brush:sql;">
flush privileges;
exit;</pre>
</div>
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        现在就修改密码OK了。</p>
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        但是刚刚为的是跳过密码认证所以修改的 my.cnf</p>
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        所以现在要修改回来。</p>
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        再次回到 /etc</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>cd /etc</code></p>
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        修改 my.cnf</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>vi my.cnf</code></p>
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        将刚刚加入的删除</p>
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        然后</p>
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        <code style='margin: 3px auto 0px; padding: 2px 4px; outline: none; font-style: inherit; font-weight: inherit; background: rgb(249, 242, 244); width: 640px; line-height: 1.5; clear: both; font-size: 12px; border: 1px solid rgb(204, 204, 204); color: rgb(199, 37, 78); border-radius: 0px; font-family: Menlo, Monaco, Consolas, "Courier New", monospace;'>:wq</code></p>
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        就可以用密码登录了。</p>
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        <span><strong>总结</strong></span></p>
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        以上所述是小编给大家介绍的阿里云云服务器mysql密码找回的方法,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!</p>
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