Shulou(Shulou.com)06/02 Report--

Recently, I am working on a project that requires the installation of the Redhat operating system, but it is really difficult to download from the redhat official network. The important thing is that the download will be terminated at the end of the download, which is really a headache. So I want to find out whether there is the same ISO image in China, but we need to verify the security of ISO. Otherwise, if the image is implanted with a virus or *, won't you bye after installation?

The most direct and effective way is to compare whether the hash value of the ISO image is the same as that provided on the official website. How to do that? The following is a brief introduction.

Generally speaking, the hash values of ISO images are provided on the official website as follows:

What we need to do later is to get the hash value of the ISO image you downloaded, and compare it with the one above. If it is the same, it comes from the download source on the official website. If it is different, use it carefully, unless you know what has been changed.

So how do you get the hash value of ISO? In fact, the windows operating system comes with a command to obtain iso images, and that is certutil. The details are as follows:

Run cmd as an administrator:

Note: the path must be absolute. It can verify files of many encryption algorithms, such as MD5, SHA1, SHA256 and so on.

Then what we need to do is to compare the two strings. After comparing my mirror image with the one on the official website, you can rest assured to use it. If it is different, you should pay attention to it!

I hope I can help you all. Thank you.

Reference document: https://www.jianshu.com/p/6384e7f42175

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.