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Building my IT Support career 🖥️
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Building my IT Support career 🖥️

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Stefon1233/README.md

Hi, I'm Stefon 👋

IT Support | Microsoft 365 | Entra ID | Active Directory | Azure | Intune | PowerShell

I am building a career in IT Support, Technical Support, Microsoft 365, Identity & Access Management, Endpoint Management, and Cloud Support.

I completed the Google IT Support Professional Certificate and have built a hands-on technical portfolio focused on real-world enterprise support scenarios across Microsoft technologies.

My projects demonstrate practical experience with:

  • Microsoft 365 administration
  • Microsoft Entra ID and hybrid identity
  • Active Directory
  • Microsoft Entra Connect
  • Microsoft Intune
  • Microsoft Defender for Endpoint
  • Exchange Online
  • Microsoft Teams
  • Microsoft Azure
  • Azure Monitor and Log Analytics
  • ServiceNow ITSM
  • PowerShell automation
  • Networking
  • Identity and access troubleshooting
  • Endpoint troubleshooting
  • Help-desk incident documentation

🎯 Target Roles

I am currently pursuing opportunities in:

  • IT Support Specialist
  • Help Desk / Service Desk
  • Technical Support
  • Microsoft 365 Support
  • SaaS Technical Support
  • Identity / IAM Support
  • Endpoint / Intune Support
  • Cloud Support
  • Junior Systems Administration

🛠 Technical Skills

Microsoft Identity & Access

  • Microsoft Entra ID
  • Microsoft Entra Connect Sync
  • Hybrid Identity
  • Active Directory Domain Services
  • User & Group Administration
  • Password Hash Synchronization
  • MFA
  • Conditional Access
  • RBAC
  • Least Privilege
  • UPN Administration
  • OU Filtering
  • Identity Lifecycle Management
  • Authentication Troubleshooting
  • Sign-In Analysis
  • Access Troubleshooting

Microsoft 365

  • Microsoft 365 Admin Center
  • Exchange Online
  • Microsoft Teams
  • SharePoint Online
  • Microsoft Defender
  • User Licensing
  • Shared Mailboxes
  • Distribution Groups
  • Mail Flow
  • Message Trace
  • Quarantine
  • Teams Policies
  • Guest Access
  • User Provisioning
  • Employee Onboarding / Offboarding

Endpoint Management & Security

  • Microsoft Intune
  • Windows 11 Enrollment
  • Compliance Policies
  • Configuration Profiles
  • Application Deployment
  • BitLocker
  • Endpoint Security
  • Conditional Access
  • Microsoft Defender for Endpoint
  • Defender Antivirus
  • Attack Surface Reduction
  • Device Investigation
  • Threat Remediation
  • Security Incident Investigation

Microsoft Azure

  • Azure Resource Groups
  • Azure RBAC
  • Azure Virtual Networks
  • Network Security Groups
  • Azure Storage
  • Azure Policy
  • Resource Locks
  • Azure Monitor
  • Log Analytics
  • Kusto Query Language (KQL)
  • Azure Monitor Alerts
  • Diagnostic Settings
  • Azure Workbooks
  • Cloud Governance
  • Cloud Troubleshooting

Windows Server & Active Directory

  • Windows Server 2022
  • Active Directory Domain Services
  • Domain Controllers
  • Organizational Units
  • Users & Security Groups
  • Group Policy
  • DNS
  • DHCP
  • SMB File Shares
  • NTFS Permissions
  • Domain-Joined Clients
  • Account Lockout Troubleshooting
  • Password Administration

ITSM & Support

  • ServiceNow
  • Incident Management
  • Ticket Prioritization
  • SLA Awareness
  • Escalation
  • Root Cause Analysis
  • Resolution Verification
  • Knowledge Articles
  • Help Desk Documentation
  • Customer Communication
  • Technical Troubleshooting

PowerShell

  • Active Directory Administration
  • Microsoft Entra Connect Administration
  • Exchange Online PowerShell
  • Microsoft Teams PowerShell
  • System Diagnostics
  • Network Diagnostics
  • User Auditing
  • Service Monitoring
  • Reporting
  • Automation
  • Troubleshooting Scripts

Networking

  • TCP/IP
  • IPv4
  • DNS
  • DHCP
  • Routing
  • Default Gateway Troubleshooting
  • Wi-Fi Troubleshooting
  • VPN Concepts
  • Port Testing
  • HTTP / HTTPS
  • TLS
  • Packet Capture
  • Wireshark
  • Connectivity Isolation

🚀 Featured Portfolio Projects

1. Microsoft Entra Connect Hybrid Identity Lab

Hands-on hybrid identity environment integrating Windows Server 2022 Active Directory with Microsoft Entra ID using Microsoft Entra Connect Sync.

Highlights

  • Built stefonlab.local Active Directory environment
  • Installed and configured Microsoft Entra Connect
  • Implemented Password Hash Synchronization
  • Configured Domain and OU Filtering
  • Synchronized Active Directory users to Entra ID
  • Administered ADSync with PowerShell
  • Used Synchronization Service Manager
  • Troubleshot users excluded from synchronization
  • Investigated UPN mismatches
  • Investigated duplicate proxyAddresses
  • Created reusable Entra Connect PowerShell scripts
  • Documented 6 hybrid identity support incidents
  • Captured 60 implementation and troubleshooting screenshots

View Microsoft Entra Connect Hybrid Identity Lab

2. Enterprise IT Support Capstone

Enterprise-style support environment combining multiple technologies into end-to-end incident resolution workflows.

Technologies

  • Microsoft 365
  • Microsoft Entra ID
  • Microsoft Intune
  • Active Directory
  • Conditional Access
  • ServiceNow
  • Networking
  • Windows troubleshooting
  • PowerShell

Incidents

  • Password reset
  • Account lockout
  • DNS failure
  • VPN failure
  • Microsoft 365 licensing
  • SharePoint permissions
  • Device compliance
  • MFA failure
  • Suspicious sign-in investigation

View Enterprise IT Support Capstone

3. Microsoft Teams Administration & Support Lab

Hands-on Microsoft Teams administration and troubleshooting environment.

Highlights

  • Teams Admin Center
  • Team and channel administration
  • Messaging policies
  • Meeting policies
  • Guest and external access
  • App policies
  • Microsoft Teams PowerShell
  • Meeting diagnostics
  • Device troubleshooting
  • Call Quality Dashboard
  • 10 documented support incidents
  • 100 implementation and troubleshooting screenshots

View Microsoft Teams Administration & Support Lab

4. Microsoft Defender for Endpoint Security Lab

Endpoint security lab focused on detection, investigation, and remediation.

Highlights

  • Defender endpoint onboarding
  • Defender Antivirus
  • Attack Surface Reduction
  • EICAR detection testing
  • Security alerts
  • Incident investigation
  • Device timeline analysis
  • Evidence review
  • Threat remediation
  • Defender XDR workflows

View Microsoft Defender for Endpoint Security Lab

5. Exchange Online & Microsoft 365 Messaging Support Lab

Messaging support environment focused on common Exchange Online incidents.

Highlights

  • Mailbox provisioning
  • Microsoft 365 licensing
  • Shared mailbox permissions
  • Send As permissions
  • Distribution groups
  • Mail forwarding
  • Message trace
  • Quarantine troubleshooting
  • External mail flow
  • Outlook access troubleshooting
  • Exchange Online PowerShell

View Exchange Online Messaging Support Lab

6. Azure Monitor & Log Analytics Support Lab

Monitoring and observability lab focused on Windows telemetry and incident investigation.

Highlights

  • Azure Monitor
  • Log Analytics
  • Azure Monitor Agent
  • Data Collection Rules
  • KQL
  • Alert rules
  • Windows telemetry
  • Incident investigation
  • Remediation
  • Recovery validation

View Azure Monitor & Log Analytics Support Lab

7. ServiceNow ITSM Help Desk Lab

Enterprise-style ServiceNow support environment.

Highlights

  • 10 documented help-desk incidents
  • Incident lifecycle management
  • Priority and impact assessment
  • SLA awareness
  • Assignment and escalation
  • Troubleshooting documentation
  • Resolution verification
  • Knowledge-base articles

View ServiceNow ITSM Help Desk Lab

8. Azure Cloud Support & Administration Lab

Hands-on Azure administration and troubleshooting project.

Highlights

  • Azure RBAC
  • Virtual Networks
  • Network Security Groups
  • Azure Storage
  • Resource locks
  • Azure Policy
  • Cost Management
  • Azure Monitor
  • Log Analytics
  • KQL
  • Cloud troubleshooting

View Azure Cloud Support & Administration Lab

9. Microsoft Entra ID IAM & Security Lab

Identity and access management project focused on Microsoft Entra ID.

Highlights

  • Users and groups
  • MFA
  • Conditional Access
  • RBAC
  • Administrative roles
  • Authentication
  • Sign-in analysis
  • Identity security
  • Least privilege
  • Access troubleshooting

View Microsoft Entra ID IAM & Security Lab

10. Microsoft Intune Endpoint Management Lab

Modern endpoint management project using Microsoft Intune.

Highlights

  • Windows 11 enrollment
  • Device administration
  • Compliance policies
  • Configuration profiles
  • BitLocker
  • Application deployment
  • Endpoint security
  • Conditional Access
  • Remote actions
  • PowerShell
  • Device troubleshooting

View Microsoft Intune Endpoint Management Lab

11. Microsoft 365 Administration Lab

Microsoft 365 business administration and help-desk environment.

Highlights

  • 10+ users
  • Microsoft Entra ID
  • Licensing
  • MFA
  • Exchange Online
  • Teams
  • SharePoint
  • Shared mailboxes
  • Distribution groups
  • User provisioning
  • Onboarding and offboarding
  • 10 documented support scenarios

View Microsoft 365 Administration Lab

12. Windows Active Directory Home Lab

Windows enterprise identity lab built with Windows Server and Windows clients.

Highlights

  • Active Directory Domain Services
  • 20 users
  • Organizational Units
  • Security groups
  • DNS
  • DHCP
  • Group Policy
  • Domain-joined clients
  • SMB shares
  • NTFS permissions
  • Authentication troubleshooting

View Windows Active Directory Home Lab

📂 Additional Projects

PowerShell Automation Scripts

20 PowerShell scripts for IT support, system administration, auditing, networking, reporting, and troubleshooting.

View PowerShell Automation Scripts

Dynamics 365 + Power Platform Support Lab

Dataverse, Power Apps, Power Automate, RBAC, support workflows, and troubleshooting.

View Dynamics 365 + Power Platform Support Lab

SharePoint + Power Platform Support Lab

SharePoint Online, Power Apps, Power Automate, Entra ID, permissions, and help-desk workflows.

View SharePoint + Power Platform Support Lab

Network Troubleshooting Portfolio

Troubleshooting scenarios covering TCP/IP, DNS, DHCP, routing, Wi-Fi, packet capture, ports, latency, HTTP/HTTPS, and TLS.

View Network Troubleshooting Portfolio

Help Desk Ticket Portfolio

Structured support tickets covering Active Directory, Microsoft 365, networking, Windows, permissions, hardware, and user support.

View Help Desk Ticket Portfolio

IT Knowledge Base

Reusable technical support procedures for Windows, networking, Active Directory, Microsoft 365, PowerShell, and hardware.

View IT Knowledge Base

🔧 Troubleshooting Approach

Across my projects I use a consistent support methodology:

Identify the symptom
        ↓
Establish a baseline
        ↓
Gather evidence
        ↓
Isolate the affected layer
        ↓
Test a hypothesis
        ↓
Identify root cause
        ↓
Apply remediation
        ↓
Validate recovery
        ↓
Document the resolution

My labs emphasize not only completing administrative tasks, but also demonstrating how an issue was diagnosed and why a
particular remediation was selected.

☁️ Microsoft Enterprise Support Stack

                    Active Directory
                           │
                           ▼
                  Microsoft Entra Connect
                           │
                           ▼
                    Microsoft Entra ID
                           │
          ┌────────────────┼────────────────┐
          ▼                ▼                ▼
        Azure            Intune        Microsoft 365
          │                │                │
          ▼                ▼        ┌───────┼────────┐
   Monitor / KQL      Endpoints      ▼       ▼        ▼
                                Exchange   Teams   SharePoint
                                    │
                                    ▼
                              Defender / Security

                 ServiceNow ITSM + PowerShell
                     support the environment

🎓 Certification
Google IT Support Professional Certificate

Core areas:

IT troubleshooting
Networking
Operating systems
System administration
IT infrastructure
Security fundamentals
Customer support
📈 Current Career Focus

I am continuing to strengthen my skills in:

Microsoft 365 Support
Microsoft Entra ID
Hybrid Identity
Identity & Access Management
Microsoft Intune
Endpoint Security
Azure Cloud Support
Azure Monitoring
PowerShell Automation
Windows Server
Active Directory
Networking
SaaS / Technical Support

My immediate goal is to apply these skills in a professional IT Support, Technical Support, Microsoft 365, IAM, Endpoint, or
Cloud Support environment.

📫 Connect

LinkedIn:
linkedin.com/in/stefon-kreller-37621b26a

GitHub:
github.com/Stefon1233

Portfolio Focus

Microsoft 365 • Entra ID • Hybrid Identity • Active Directory • Intune • Azure • Defender • Exchange • Teams • ServiceNow •
PowerShell • IT Support

Pinned Loading

  1. Azure-Cloud-Support-Administration-Lab Azure-Cloud-Support-Administration-Lab Public

    Hands-on Azure cloud support lab covering Entra ID, RBAC, networking, storage, governance, monitoring, Log Analytics, KQL, troubleshooting, and 10 documented help-desk incidents.

  2. Microsoft-Entra-ID-IAM-Security-Lab Microsoft-Entra-ID-IAM-Security-Lab Public

    Hands-on Microsoft Entra ID IAM and security lab covering MFA, Conditional Access, RBAC, authentication, identity security, sign-in analysis, and troubleshooting.

  3. Microsoft-Intune-Endpoint-Management-Lab Microsoft-Intune-Endpoint-Management-Lab Public

    Microsoft Intune endpoint management lab demonstrating Windows 11 enrollment, compliance, Conditional Access, BitLocker, app deployment, endpoint security, remote actions, reporting, PowerShell aut…

    PowerShell

  4. Microsoft-365-Admin-Lab Microsoft-365-Admin-Lab Public

    Hands-on Microsoft 365 administration lab demonstrating user management, Entra ID, Exchange Online, Teams, SharePoint, licensing, MFA, permissions, and help desk scenarios.

  5. Windows-Active-Directory-Home-Lab Windows-Active-Directory-Home-Lab Public

    Windows Active Directory home lab demonstrating AD DS, Group Policy, DNS, DHCP, user management, domain administration, and troubleshooting.

  6. PowerShell-Automation-Scripts PowerShell-Automation-Scripts Public

    20 PowerShell automation scripts for IT support, system administration, diagnostics, reporting, user auditing, networking, and help desk workflows.

    PowerShell