Configuring and maintaining computer systems in multi-user environments

These systems provide a specific function to users and/or other systems

• File Server
• Web Server
• Print Server

• OS system knowledge (*nix & Windows)
• Hardware installation and troubleshooting
• Understands network concepts – especially TCP/IP – including logical and physical concepts
• Virtualization Knowledge
• Programming – knowledge of scripting
• Documentation – record how and why things are done
• People Skills – working with clients and team members daily. 

File Server – Allow access to shared file storage based on permissions

Print Server – Centralized printing and document services

Web Server – Serves websites and web applications to users over HTTP protocol

E-mail Server – Communication through messages between users over a network

Directory Server – Centralized management of users, computers, and other network resources

DNS – Domain Name Systems resolve hostnames and URL’s to IP Addresses

DHCP – Automatically configure network settings of computers on a network

Proxy – Provides a secure portal between LAN and WAN

Database – Stores information to be accessed by users and applications

Virtual (Host) – Divides physical system into multiple logical systems

Motherboard – Provides power and communication channels between all other hardware

CPU – Carries out instructions within a computer by performing arithmetic and logic

Power Supply – Converts AC  to DC to provide power to all other components

RAM – Violate memory that can store data for quick access by the CPU

GPU – Carries out processing instructions for graphical applications

Hard Disk – Storage for operating systems, data, and applications

NIC – Network Interface card provides a link to the network

• Sharing a single hardware configuration with multiple OS’s
• Host OS (Hypervisor)
• Guest OS (Virtual Machines)

• Reduced hardware/power costs
• Easier remote management
• Simplified backups (snapshot)
• Prototyping, testing, and development
• Faster deployment and reconfiguring

• Virtual computing environment 
• Allows end-user control
• Built on VMWare vRealize Automation and NSX software suite

• Virtual Hardware
• Virtual Networks
• Virtual Storage

• You can create new systems on the fly
• Configure virtual networks, firewalls, and other network services
• You can create a complete enterprise network

• Commonly used for IaaS
• Integrates vSphere, vCenter, and Software-Defined Networking, with an easy to use front end web interface