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Technical incidents

Khong SSH duoc vao Cloud Server thi can kiem tra gi dau tien?

Kiem tra public IP, security group, firewall trong may, trang thai VM va key dang su dung truoc khi escalation.

faqhigh impactPriority 4
Cloud Server khong SSH duoc

Symptoms

  • SSH timeout
  • Permission denied publickey
  • Ping duoc nhung port 22 dong

Resolution

  1. Kiem tra network rule

    Mo dung source IP va port 22 trong firewall/security group.

  2. Dung console

    Dang nhap console de kiem tra sshd, firewall noi bo va tai nguyen may.

  3. Mo ticket

    Gui IP VM, timestamp va log client neu van loi.

Checklist nhanh

  1. Thu source IP khac

    Loai tru kha nang chan IP tai mang nguoi dung.

  2. Kiem tra console

    Xac dinh VM con boot va dich vu sshd dang chay.