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Linux下保护VPS SSH账号安全的两大方法

更新时间：2026-08-22 07:40:44 | 编辑：扶南 | 信息来源：互联网

　　VPS账号如果泄露，其损失是非常之大的，那么要如何来增强VPS SSH账号的安全性呢？下面小编就给大家介绍下保护VPS账号的两大方法，即修改SSH登陆端口和禁止ROOT登陆，一起来了解下吧。

　　修改SSH登陆端口

　　修改文件：/etc/ssh/sshd_config

　　Port 22 #在第三行或第四行，如果前面有井号，请删除，修改为65534以下即可

　　可在远程连接中用vi命令，或sftp下载到本地修改，修改后使用以下命令重启ssh服务

　　/etc/init.d/sshd restart#centos系统，重启ssh服务命令

　　/etc/init.d/ssh restart#debian/ubuntu系统，重启ssh服务命令

　　禁止ROOT登陆

　　更加安全的设置，采用小号登陆再切换ROOT（此方法不能用SFTP上传文件）

　　useradd yzgod#新建一个小号

　　passwd yzgod#给小号设置密码，需要输入完全相同的二次，注意提示

　　vi /etc/ssh/sshd_config#修改的文件还是这个

　　PermitRootLogin yes#把yes，改成no，保存退出，并重启SSH服务（上面有重启命令）

　　切记，如果没有新建小号，或小号密码设置错误，你又禁了ROOT，那你只能重启系统或回滚快照，再也登陆不了。

　　如果不是极度需要安全环境，并且，还需要使用SFTP管理文件，那改掉端口就行了。

　　上面就是保护VPS账号安全的方法介绍了，如果你的VPS账号处于风险之中，随时都有可能被黑客攻击，最好的方法就是尽量养成使用正规软件的好习惯。

上一篇：Linux下硬盘分区的具体步骤

下一篇：如何在同台电脑上安装不同版本的Linux系统


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