Windows系统root名称确认及查询方法咨询（密钥登录场景）

Hey there! Let's clear up this confusion for you right away—you're mixing up your local Windows user account with the remote server's root account, which are totally separate things.

Key Distinction: #

• Your local USER is the username for your Windows PC (the one in C:\Users\USER), and USER@Tet in your public key is just a label tied to your local machine. This is not the "root name" the tutorial is referring to.
• The root in the tutorial is the super administrator account on the remote Linux/Unix server you're trying to access. It's a built-in account on most Linux-based servers, completely independent of your local Windows setup.

How to Confirm the Correct Remote Username: #

• If you got the server from a hosting provider, check the welcome email they sent you. It will include the initial login credentials—this might be root, or a default user like ubuntu/centos (some providers disable direct root login for security).
• If you've logged into the server before, use the same username you used then. If you previously used root to log in, that's what you'll enter in the Auto-login username field.
• If you're still unsure, reach out to the server's administrator—they'll know exactly which username you need.

A quick tip: If the tutorial explicitly says to set Auto-login username to root, give that a try first. If you run into a login error, it's likely the server uses a different default user instead of root.

内容的提问来源于stack exchange，提问作者Huyen