在当今时代，对不可信的可执行文件保持警惕并不是一个坏主意，但是如果您真的需要在Linux系统上运行一个文件，有没有安全的方法呢？今天的超级用户问答帖子有一些有用的建议，以回应一位忧心忡忡的读者的提问。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者Emanuele想知道如何在Linux上安全运行不受信任的可执行文件：

I have downloaded an executable file compiled by a third party and I need to run it on my system (Ubuntu Linux 16.04, x64) with full access to HW resources such as the CPU and GPU (through the NVIDIA drivers).

Suppose this executable file contains a virus or backdoor, how should I run it? Should I create a new user profile, run it, then delete the user profile?

如何在Linux上安全地运行不受信任的可执行文件？

答案

超级用户贡献者Shiki和Emanuele为我们提供了答案。首先，志贵：

First and foremost, if it is a very high risk binary file, you would have to set up an isolated physical machine, run the binary file, then physically destroy the hard drive, the motherboard, and basically all the rest because in this day and age, even your robot vacuum can spread malware. And what if the program already infected your microwave through the computer’s speakers using high-frequency data tran**itting?!

But let’s take off that tinfoil hat and jump back to reality for a bit.

No Virtualization – Quick to Use

Firejail

I had to run a similar untrusted binary file just a few days ago and my search led to this very cool **all program. It is already packaged for Ubuntu, very **all, and has virtually no dependencies. You can install it on Ubuntu using: sudo apt-get install firejail

Package info:

Virtualization

KVM or Virtualbox

This is the safest bet depending on the binary, but hey, see above. If it has been sent by “Mr. Hacker” who is a black belt, black hat programmer, there is a chance that the binary can escape a virtualized environment.

Malware Binary – Cost Saver Method

Rent a virtual machine! For example, virtual server providers like Amazon (AWS), Microsoft (Azure), DigitalOcean, Linode, Vultr, and Ramnode. You rent the machine, run whatever you need, then they will wipe it out. Most of the bigger providers bill by the hour, so it really is cheap.

接着是伊曼纽尔的回答：

A word of caution. Firejail is OK, but one has to be extremely careful in specifying all the opti*** in terms of the blacklist and whitelist. By default, it does not do what is cited in this Linux Magazine article. Firejail’s author has also left some comments about known issues at Github.

Be extremely careful when you use it, it might give you a false sense of security without the right opti***.

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