Linux: Ensure X Window System is not installed

参考 2.2.2 Ensure X Window System is not installed

X window System是什么

The X Window System provides a Graphical User Interface (GUI) where users can have multiple windows in which to run programs and various add on. The X Windows system is typically used on workstations where users login, but not on servers where users typically do not login.

删除X window System，为了安全

有时候对系统的安全检查会提示：Ensure X Window System is not installed

Unless your organization specifically requires graphical login access via X Windows, remove it to reduce the potential attack surface.

Run the following command to remove the X Windows System packages.

sudo dnf remove xorg-x11*

Java包有对xorg-x11-fonts的依赖，

Many Linux systems run applications which require a Java runtime. Some Linux Java packages have a dependency on specific X Windows xorg-x11-fonts.

可以在安装java后，通过下面命令删除xorg-x11* 的依赖包（试过可行）

sudo dnf remove xorg-x11*

也可以使用Java headless 版本(没有试过)

One workaround to avoid this dependency is to use the "headless" Java packages for your specific Java runtime, if provided by your distribution