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Reset OpManager Password

✅ First: Confirm the reset was done at the correct moment

The reset command only works if you ran it while the OpManager service was fully stopped.

The correct sequence is:

Stop service ManageEngine OpManager → Stop
Run reset command From an elevated CMD:
Code --> cd "C:\Program Files\ManageEngine\OpManager\bin" resetPassword.bat admin <newpassword>
Start service ManageEngine OpManager → Start
Open browser → go to http://localhost:8060
Log in with: Username: admin Password: Use temp password from cmd

Add OAuth Provider

Azure App Registration Settings

1. Create the App

Azure Portal → Azure Active Directory → App registrations → New registration

Name: OpManager Mail OAuth

Supported account types: Accounts in this organizational directory only (Single tenant)

Redirect URI: Type: Web Value:

Code

https://www.manageengine.com/products/opmanager/oauth2/callback

2. Go to App registrations

Inside Entra ID, look at the left menu:

App registrations

Click it.

3. Click “New registration”

Top of the App Registrations page → New registration

4. Fill in the required fields

Use these exact values:

Name

Code

OpManager Mail OAuth

Supported account types

Choose:

Code

Accounts in this organizational directory only (Single tenant)

Redirect URI

Set:

Type: Web
Value:

Code

https://www.manageengine.com/products/opmanager/oauth2/callback

Then click Register.

5. Copy the IDs

After creation, Azure shows:

Application (client) ID →d914ceef-1871-43d2-939b-0c33d7e818fb
Directory (tenant) ID →24f51e2b-1874-4d3c-ba0f-1f8683f1ea4c

You’ll need both for OpManager.

6. Add permissions

Left menu → API permissions → Add a permission → Microsoft Graph → Application permissions

Add:

Code

SMTP.Send

Then click Grant admin consent.

7. Create the Client Secret

Left menu → Certificates & secrets → New client secret

Copy the Value immediately — this is the Client Secret OpManager needs.

6bc72736-a366-462b-a71b-8d6bd55e9217

Click Register.

Identify Any MacBook

1. Use “About This Mac” (Easiest if the Mac turns on)

Click the Apple  menu (top-left).
Select About This Mac.
You’ll immediately see:
- Model name (e.g., MacBook Pro 14-inch, 2024)
- Chip (M1/M2/M3/M4/M5, Intel, etc.)
- Year released
- Serial number
- macOS version

This is the most accurate and Apple‑supported method.

2. Check the Serial Number on the Bottom Case

If the Mac won’t power on:

Flip the MacBook Pro over.
Look near the regulatory markings for the serial number.
Go to Apple’s Check Coverage page and enter the serial number to identify the exact model.

3. Check the Original Box (If Available)

The box shows:
- Serial number
- Apple part number (e.g., MLH12xx/A)
You can match that part number to Apple’s official model list.

4. Use an Online Lookup Tool (If you only have the serial/model number)

Two highly reliable databases:

EveryMac.com — enter:
- Serial number
- Model number (Axxxx)
- EMC number
- Model Identifier (e.g., MacBookPro16,1) It returns full specs, year, and configuration.
MacFinder — also allows serial lookup and browsing by model range.

🧭 What Each Identifier Means

Model Number (Axxxx) — printed on the bottom; identifies the hardware family.
Serial Number — uniquely identifies your exact unit.
Model Identifier — used in System Information (e.g., Mac17,7); maps to specific generations.
EMC Number — helps pinpoint exact variants.

Windows SNMP Installation

Install SNMP using PowerShell

a. Add-WindowsCapability -Online -Name "SNMP.Client~~~~0.0.1.0"

b. Add-WindowsCapability -Online -Name "WMI-SNMP-Provider.Client~~~~0.0.1.0"

c. Get-WindowsCapability -Online -Name "SNMP.Client~~~~0.0.1.0"

Confirm SNMP installation

a. Add-WindowsCapability -Online -Name "SNMP.Client~~~~0.0.1.0"

2. Confirm SNMP installation

a. Add-WindowsCapability -Online -Name "SNMP.Client~~~~0.0.1.0"

3. Configure SNMP

a. Run Services

b. Find SNMP service

c. Startup type “Automatic”

d. Start the service

e. Goto Security Tab

f. Add your community string (public)

g. add OpManager server IP

h. to accept SNMP packets from these hosts

i. Restart SNMP service

STEP 6 — Add SNMP Credential in OpManager

In OpManager:

Go to Settings → Discovery → Credentials
Click Add Credential
Choose SNMP v1/v2
Enter:
- Community: the same one you added in Windows
- Port: 161
- Timeout: 5
- Retries: 1

Save

Step 7 - Add Device in OpManager

Inventory --> devices --> add device

Select credentials --> SNMP v1/v2

Reset OpManager Password

✅ First: Confirm the reset was done at the correct moment

Add OAuth Provider

Azure App Registration Settings

1. Create the App

2. Go to App registrations

3. Click “New registration”

4. Fill in the required fields

Name

Supported account types

Redirect URI

5. Copy the IDs

6. Add permissions

7. Create the Client Secret

Identify Any MacBook

1. Use “About This Mac” (Easiest if the Mac turns on)

2. Check the Serial Number on the Bottom Case

3. Check the Original Box (If Available)

4. Use an Online Lookup Tool (If you only have the serial/model number)

🧭 What Each Identifier Means

Windows SNMP Installation

STEP 6 — Add SNMP Credential in OpManager

Step 7 - Add Device in OpManager

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