Resolving SSH Access Issue: "IP not allowed because none of the user's groups are listed in AllowGroups"

Overview: This article details a solution for enabling SSH access by temporarily commenting out the AllowGroups directive in /etc/ssh/sshd_config and restarting the SSH service.

Encountering the error "IP not allowed because none of the user's groups are listed in AllowGroups" can prevent SSH access. Follow these steps to address and resolve this issue:

Step 1: Access SSH Configuration File

• Open the SSH server configuration file for editing.

Step 2: Locate AllowGroups Directive

• Look for the line that specifies AllowGroups within the configuration file.

Comment Out AllowGroups Directive

• Comment out the AllowGroups directive by adding a # at the beginning of the line. 
• This step temporarily disables any group restrictions on SSH access.

Step 3: Restart the service and Attempt SSH Connection

• Restart the SSH service to apply the changes and try connecting to the server again using SSH.

By commenting out the AllowGroups directive in the SSH configuration file and restarting the SSH service, you can effectively resolve the "IP not allowed because none of the user's groups are listed in AllowGroups" error and regain SSH access to your server. This process ensures that any group restrictions temporarily do not affect your ability to connect via SSH.

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