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I've installed CentOS 6 & Plesk 11.5. Are there any SSH changes I need to make to improve security, setup mail servers, optimise email settings etc?
如果您担心 SSH,可以将 SSH 端口从 22 更改为其他端口,禁止通过 SSH 进行 root 登录,围绕 linux 安全最佳实践设置和配置 sudo 和 google。此外,您可以在工具和设置 -> 安全策略中更改 Plesk 安全策略,也许您想更改“最小密码强度”
如果 Plesk 已经安装,那么您已经有 Postfix,默认情况下正在安装。