Operating Systems

Microsoft

• Windows 3.1 through Windows 10
• Windows NT 4.0 through Windows Server 2019

Linux

• Ubuntu
• Ubuntu Server
• Lubuntu
• Debian
• CentOS
• RedHat
• Gentoo
• Raspbian
• unRaid

macOS

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VOIP

• Cisco
• Mitel/ShoreTel
• Polycom

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Cloud

• Amazon Web Services (AWS)
• Microsoft Azure
• NextCloud

Patching/Updates

• Windows Server Update Services (WSUS)
• System Center Configuration Manager (SCCM)
• PatchLink
• BigFix

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Virtualization

• VMware ESXi
• Microsoft Hyper-V
• Proxmox
• Docker

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Databases

• SQL
• Microsoft Access
• MongoDB
• MariaDB
• InfluxDB

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Coding

• Visual Basic 6
• VB.Net
• Visual Basic for Applications (VBA)
• C#
• C/C++
• PowerShell
• Batch Files
• VBScript
• Shell Scripting

Networking

Switches

• Cisco
• Meraki
• HP ProCurve

Firewalls

• Cisco
• SonicWall

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Backups

• Veeam
• Commvault
• Avamar
• CrashPlan

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Ticketing Systems

• ServiceNow
• Spiceworks
• Other proprietary systems

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Domain Administration

• Active Directory
• Group Policy Management
• Azure AD Connect
• DHCP
• DNS
• Print Management