Implementing a Network in Software

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Implementing a Network
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Installing a Network
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Microsoft has three types of servers standalone, member, and domain
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A standalone server is not part of a domain and sits on its own It relies on
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its own security database known as the SAM database for user and group management and authentication services
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A member server is a member of domain but does not have the Active
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Directory database installed A member server typically runs applications such as Exchange or SQL Server
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A domain controller is a server that holds the Active Directory database To have communication on a network you need to have a network client,
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protocol, and network card driver installed
Creating User Accounts
There are two types of accounts: built-in accounts and administrator-created
accounts
Built-in accounts are accounts that are created during the installation of the
operating system There is typically an administrative account built in to the operating system and a guest account that is disabled by default
The built-in administrative account in Windows is called Administrator, and
the one built-in to Linux / UNIX is called root
You can create a user account in Active Directory with the Active Directory
Users and Computers console
You may create a user account in Linux with the Red Hat User Manager You should create a password policy that enforces strong passwords A strong password consists of upper and lowercase characters and has a
minimum of six characters and a mix of letters, numbers, and symbols
Managing Groups
Groups are used to organize users into administrative units There are built-in groups in Windows such as Administrators, Backup
Operators, Account Operators, and Print Operators
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Backup operators have the right to perform backups, printer operators can
install and con gure printers, and account operators can create and manage user accounts
Global groups are used to organize users within a domain, domain local
groups are used for permissions or rights assignment, and universal groups are used to organize users across domains
Security groups are used for security or email, and distribution groups are used
only for email
Securing Files and Folders
Use NTFS partitions so that you can con gure NTFS permissions on folders Use share permissions when creating the shared resource When NTFS and share permissions con ict the most restrictive wins In Linux, you can con gure permissions with the chmod command The full control permission allows a user to modify the le contents and
modify permissions, while the modify permission only allows a user to modify the le contents not permissions
You can connect to a folder with a UNC path The UNC path has the
following syntax: \\computername\sharename
Installing Printers
Microsoft terms the print device as the machine that holds the paper and ink
and prints the content on paper, whereas the printer is the software interface to the print device
A print server is a machine that has a printer shared and receives print
request from clients
A printer (or queue in other network environments) is where the print job is
stored while trying to print
Working with Network Hardware
Because computers are affected by temperature, moisture, vibrations, and
electrical interference, you need to create a controlled environment and be in control of each of these elements
9:
Implementing a Network
Watch cable distance on the different cable types and be familiar with the
components that can create interference in your environment
Network Attach Storage (NAS) is a popular choice for mass storage devices
such as RAID drives and CD-ROMs
Self Test
SELF TEST
The following questions will help you measure your understanding of the material presented in this chapter Read all the choices carefully and eliminate the choices you know are wrong; then gure out which one of the remaining choices is the correct answer
Installing a Network
1 Which networking component is responsible for connecting to the server A Client B Service C Protocol D Network card driver 2 Which type of Microsoft server holds the network account database known as Active Directory A Workstation B Standalone C Member server D Domain controller 3 Which networking component is responsible for being the common language used by all systems that are communicating A Client B Service C Protocol D Network card driver 4 What is the name of Novell Netware s network account database that can now run on Linux as well A SAM B Bindery C Active Directory D eDirectory
9:
Implementing a Network
Creating User Accounts
5 What is the built-in administrative account in Linux A Admin B Administrator C root D Guest 6 Which default account in the Microsoft world is disabled by default A Admin B Administrator C Root D Guest 7 Where are user accounts created on a Windows client system A SAM B DNS C Active Directory D eDirectory 8 What shell command in Linux is used to create a user account A Net use B useradd C perm D chmod
Managing Groups
9 Which group scope is used to organize users within a Microsoft domain A Universal B Global C Domain local D Distribution
Self Test
10 Which group scope is used to assign permissions within a Microsoft domain A Universal B Global C Domain local D Distribution 11 Which built-in group would you place Bob into to allow him to manage network user accounts in the domain A Administrators B Printer Operators C Backup Operators D Account Operators 12 Which group would you place Sue into to allow her to manage your printing environment on the network A Administrators B Printer Operators C Backup Operators D Account Operators
Securing Files and Folders
13 Which NTFS permission would you use to allow a user to delete a le A Read B Modify C Read and execute D Full control 14 Which command in Linux / UNIX will allow you to change the permissions on a le A Net use B useradd C perm D chmod
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