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Troubleshooting Linux Instance Issues via VNC and Rescue Mode

Last updated: 2024-01-06 17:32:18
    Generally, you can troubleshoot most Linux system issues via VNC and rescue mode. This document describes how to troubleshoot the issues such as a failure to log in to a Linux Instance via SSH Key and system failures.

    Troubleshooting Tool

    Login via VNC is a method of remotely connecting to a CVM through a Web browser. This enables you to directly observe the CVM status, or modify the configuration file in the system. Usually when you cannot remotely log in to the instance via SSH key, you can use this login method.
    Rescue mode is generally used when the Linux system cannot be started up normally, or the Linux instance cannot be logged in via VNC. Common usage cases: abnormal fstab configuration, missing key system files, and damaged/missing .lib and .dll files, etc.

    Identifying and Fixing Issues

    
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