VPS托管和root访问 [英] VPS hosting and root access
问题描述
我对* nix虚拟化功能了解不多，并试图澄清一件事.如果一个人在主机上具有root身份，这是否总是意味着他在该主机的所有VM上都具有root?如果是的话，那会不会是假的设置呢?
I've got rather poor knowledge of *nix virtualization capabilities and trying to clarify one thing. If one has root on host machine, does it always mean that he has root on all VMs of that host? If yes, then could there be a bogus setup where this is not true?
我问的原因是，我从两个不同的管理员那里听到了对该问题的两个不同答案.一个人说他已扎根一切，另一个人则说他没有，并且需要我的密码.
I'm asking cause I heard two different answers to that question from two different admins. One said that he has root to everything, another claimed that he don't and he needs my password.
请与VPS托管提供商分享您的经验，他们是否植根于您的环境?
这并不是说我害怕丢失数据，只是想对Google有一些见解和话语；-) 谢谢大家！
Please share your experience with VPS hosting providers, do they have roots to your environment?
It's not that I'm afraid to lose the data, just want to have some insights and words to google for ;-) Thanks everyone!
推荐答案
最终，在VM主机上具有root权限与对常规计算机的物理访问相同.他们不能只是以root用户身份登录到VM(好吧，您可以使用OpenVZ等虚拟化技术)，但是他们可以进入VM的文件系统，更改root密码(或安装一些内容来捕获密码)并从在那里.
Ultimately, having root on the VM host is the same as having physical access to a regular machine. They can't just "login" to the VM as root (well, you can with some virtualisation technologies like OpenVZ) but they can get into the VM's filesystem, change the root password (or install something to capture the password) and go from there.
您需要对VPS托管服务提供者的信任与对colo提供者的信任完全相同，因为它们具有完全相同的访问级别和对服务进行不良处理的能力.
You need to have exactly the same trust in your VPS hosting service provider as you do with your colo provider, because they have exactly the same level of access and ability to do bad things to your service.
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