Mac terminal 使用 private key ssh

本文介绍了一种常见的SSH连接警告——私钥文件权限过于开放,并提供了具体的解决步骤。通过修改私钥文件权限为0600,可以避免因权限问题导致的连接失败。
1. 命令 

ssh -i xx.pem xxx@IP


2. 遇到问题

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

Permissions 0644 for 'id_rsa2.pem' are too open.

It is required that your private key files are NOT accessible by others.

This private key will be ignored.

Load key "id_rsa2.pem": bad permissions


解决方法:更改秘钥文件权限为0600


chmod 0600 xx.pem

再登录即可


### VSCode SSH Remote Server Terminal Setup and Configuration #### Installing Required Extensions For connecting to a remote server via SSH within Visual Studio Code (VSCode), installing the **Remote - SSH** extension provided by Microsoft is essential[^1]. This extension allows developers to seamlessly work on projects located on remote machines as if they were local. #### Configuring SSH Settings Ensure that both OpenSSH client and server packages are installed properly on your machine and target server respectively. Sometimes conflicts may arise between different versions of SSH tools like those bundled with Git; resolving such issues involves configuring environment variables carefully so only one version dominates system-wide calls. After ensuring proper installation: - Add or modify entries under `~/.ssh/config` file specifying hosts, usernames, ports, etc., which simplifies connection establishment. ```bash Host myremote HostName example.com User myusername Port 22 ``` #### Connecting Through VSCode Open Command Palette (`Ctrl+Shift+P`) inside VSCode then type/select "Remote-SSH: Connect to Host..." option followed by choosing previously defined host configurations from dropdown list presented after pressing Enter key. Once connected successfully, users will notice changes reflecting new workspace context indicating active link established towards specified destination along with integrated terminal access directly interacting against remote shell sessions without needing separate software outside editor interface itself. #### Verifying Authentication Credentials Before attempting any operations involving repositories hosted remotely over SSH protocol, verifying credentials used during authentication process ensures smooth interactions avoiding unnecessary errors due to mismatched information stored locally versus what's expected at service provider end points[^2]: Check current settings through executing below commands within opened integrated terminals post-login into desired environments: ```bash git config --global user.name git config --global user.email ls -al ~/.ssh ``` These checks help confirm whether appropriate identity files exist alongside correct personal details associated when performing actions related to source control management systems utilizing public/private key pairs instead traditional username/password combinations whenever possible enhancing security measures overall.
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