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Access IPMI / BMC

Connect to the IPMI console, power the server on or off, and reset the BMC password.

~9 min read Beginner #ipmi #bmc #dedie #kvm

Access IPMI / BMC

IPMI (Intelligent Platform Management Interface), also called BMC (Baseboard Management Controller), lets you manage a HolyCloud dedicated server remotely: power, sensors, KVM console (screen/keyboard/mouse) even when the system is off.

Prerequisites

  • Dedicated server with IPMI enabled (included on most dedicated offers)
  • IPMI credentials from customer area (dedicated IP, user, password)
  • Recent browser or IPMI client (Java/HTML5 depending on generation)

Retrieve access in customer area

  1. Log in to manager.holycloud.fr (or your client portal).
  2. Open the dedicated server page.
  3. IPMI / BMC section: note management IP address, login, and initial password.
  4. If IPMI is on a separate VLAN, verify no network filtering blocks access from your workstation (VPN provided if applicable).

Web interface access

Open in browser:

https://ADRESSE_IPMI_BMC/

Accept self-signed certificate warning if needed. Log in with BMC credentials.

Common functions:

  • Power Control: Power On, Power Off, Power Cycle, Hard Reset
  • Sensor: temperatures, fans, voltages
  • Remote Control / KVM: remote console to install OS or fix boot

KVM console (HTML5 or plugin)

  1. Menu Remote Control → Launch Console.
  2. For HTML5: no plugin; for older BMC, a .jnlp file may be required.
  3. Mount a virtual ISO (Debian, Proxmox image, etc.) to reinstall without physical access.

IPMI command line (ipmitool)

From Linux with network access to BMC:

apt install -y ipmitool
ipmitool -I lanplus -H ADRESSE_IPMI -U UTILISATEUR -P 'MOT_DE_PASSE' power status
ipmitool -I lanplus -H ADRESSE_IPMI -U UTILISATEUR -P 'MOT_DE_PASSE' power reset
ipmitool -I lanplus -H ADRESSE_IPMI -U UTILISATEUR -P 'MOT_DE_PASSE' sensor list

BMC security

  • Change the default password on first connection.
  • Use a long unique password.
  • Limit IPMI access to your admin IP if BMC firewall allows.
  • Disable unused accounts and obsolete protocols (SNMP v1/v2 public communities).

Password reset (depending on hardware): option in BIOS via KVM or support request with proof of ownership.

Troubleshooting

| Problem | Approach |

|----------|-------|

| IPMI page unreachable | Ping BMC IP, check dedicated cable/port, network ticket |

| Black KVM | Verify server is powered, try HTML5 vs Java |

| Forgotten password | HolyCloud ticket with server ID |

Best practices

  • Before brutal power off, shut down OS cleanly (shutdown -h now).
  • Use Power Cycle only if the system is frozen.
  • Document who has IPMI access on your team.

Need help?

Support can reset BMC access or verify datacenter-side connectivity.