CEG 2400 FALL 2012 Windows Servers Network Operating Systems

Microsoft Windows 2

3 Windows Server 2008 Released February 2008 Enhancement of Windows Server 2003 GUI (graphical user interface) or no GUI if desired (server Core) Enhanced security, reliability, remote client support, and performance New server management features (server manager) Hyper-V (virtualization)

4 Windows Server 2008 (cont’d.) Editions – Standard Edition – Web Edition – Enterprise Edition – Datacenter Edition Large presence in NOS field – Address most network administrator’s needs well – Well-established vendor – Device; program compatibility – Larger market offers technical support

5 Windows Server 2008 (cont’d.) General benefits – Offers simple user interfaces Disadvantage – Past criticism for performance, security

6 Hardware Requirements Server components – Processing power, memory, and hard drive space Windows Server Catalog – Windows Server 2008 compatible computer components – Available online – Consult it prior to hardware purchases

7 Hardware Requirements (cont’d.) Minimum hardware requirements for Windows Server 2008, Standard Edition

8 Memory Model Addressing schemes – 32-bit addressing scheme – 64-bit addressing scheme Assigns each application (process) – Own 32-bit memory area Important Windows Server 2008 feature – Can install more server physical memory than before Uses virtual memory

9 NTFS (New Technology File System) File system used in Windows 2008 – Methods of organizing, managing, and accessing files Installed by default Disk data distribution – Disks divided into allocation units – Allocation units combine to form partition Logically separate hard disk storage area

10 NTFS (cont’d.) Advantages – Secure, reliable, and file compression – Handles massive files – Allows fast access to resources – Used on all Windows operating system versions Since Windows NT – Offers many features Ex. 255 character long filenames (max)

11 Windows Server Workgroup model 2.Domain model – Microsoft's “Directory Service” (Domain model) Sometimes called AD (Active Directory) – AD originally designed for Windows 2000 Server Enhanced with Windows Server 2008

12 Workgroup Model Peer-to-peer network Decentralized management – Each computer has own database User accounts, security privileges – Significantly more administration effort Practical for small networks – Few users – Simple to design, implement

Windows 2008 Hyper – V (virtualization) Gui or not Read only domain controllers Hard drive resizing without stopping Self-Healing NTFS Improved remote access Powershell – programming language Bitlocker – data encryption Firewall incoming and outgoing Server Manager (updated MMC – Microsoft Management Console)

14 Windows Server 2012 Just Released Enhancement of Windows Server 2008 GUI (graphical user interface) or no GUI if desired (server Core) Enhanced security, reliability, remote client support, and performance New server management features Hyper-V (virtualization) improved AD improvements

Windows 2012 Windows Server 2012 has four editions: – Foundation (OEM only) – Essentials (25 user limit) – Standard (64 bit only, per processor licensing model, 2 VMs) – Datacenter(64 bit only, per processor licensing model, unlimited VMs)

Windows 2012

Windows Server 2012 system requirements: – No where near enough – Same comment as with 2008 Minimum system requirements for Windows Server 2012 [64 bit only] Processor1.4 GHz, x64 Memory (RAM)512 MB HDD free space 32 GB (more if there is 16 GB of RAM or more)

Windows 2012 Server Manager has been redesigned with an emphasis on easing management of multiple servers Hyper – V (virtualization) improved Gui or not still available (server core) Improved remote access Powershell – Improved with many more commanlets (2300 vs 200) Windows Server 2012 include a new version of Windows Task Manager

Windows 2012 Active Directory improvements Windows Server 2012 include a new version of Windows Task Manager New file system – ReFS – ReFS (Resilient File System) is a new file system in Windows Server 2012 that improves on NTFS Improved reliability Built-in resilience Compatibility with existing APIs and technologies Some NTFS features are not supported in ReFS

20 Summary Update of Windows 2003 – Many different versions Memory Model NTFS Workgroup vs. Active Directory Windows 2012 – Enhancements improvements

Windows Server Questions