Red Hat Linux - Allow or Deny SSH Users in Linux | AllowUsers vs DenyUsers Explained -
Автор: Red Hat Enterprise Linux Full Course
Загружено: 2025-11-17
Просмотров: 525
Secure your Linux server by controlling who can log in via SSH!
In this video, we configure AllowUsers, DenyUsers, AllowGroups, and DenyGroups inside /etc/ssh/sshd_config to restrict SSH access.
Whether you're using RHEL, CentOS, Rocky, AlmaLinux, Ubuntu, or Debian, this step-by-step guide helps you harden SSH like a pro.
Topics Covered:
What is AllowUsers in SSH
What is DenyUsers in SSH
How to allow only specific users to SSH
How to block certain users from SSH
Restrict SSH access based on groups
Restarting sshd safely
Real-world examples for production
AllowUsers Ansible DBteam user1
DenyUsers test user3
AllowGroups admin devops
DenyGroups qa
systemctl restart sshd
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