Title: notes on windows

Essay Details

Subject: Technology
Author: Benny F
Date: May 6, 2013
Level: University
Grade: A
Length: 4 / 1162
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If Windows 98 client requires access to a Windows 2000 Server and a Novell Netware Server, you can load a redirector for each operating system onto that client - Relies on client computer's redirectors to decide to which server to send the request SERVER-BASED MULTIVENDOR SOLUTION: - A server that can readily communicate with clients from multiple vendors, such as Windows 2000 Server SAMBA: - An open source software suite that makes Linux servers look and act like Windows servers - It permits DOS or Windows clients to access Linux or Unix-based file systems and services w/o special software on the client end - A server-based solution; software and services need be installed only on a small number of servers - Can be downloaded and installed for free NFS: - Network File System ? a distributed file system originally developed at Sun Microsystems - Supports network-based file and printer sharing using TCP/IP-based network protocols - Native to Unix - Allows networked machines to export portions of their local file systems and make them available to authorized users on the network TERMINAL SERVICES: - A software subsystem for NT and 2000 server that permits clients to run large or complex applications on computers with minimal processing power by transferring the burden of client processing to the server - Providing access: § to modern Windows applications on older PCs or thin clients that might not otherwise be able to run those applications § to centralized applications or services that would otherwise have to be installed on client machines - permitting remote clients using narrow bandwidth connections to access modern, powerful Windows applications w/o bandwidth-related performance delays CENTRALIZED COMPUTING: - A computing environment in which all processing takes place on a mainframe or central computer - "Dumb" terminals connect directly to the mainframe - "Thin Clients" attached to a terminal server or some kind can also access a mainframe - creates a large volume of data and does not efficiently use the PCs FRONT END VS BACK END: - front end ? a client o presents data in a usable form o accepts instructions from the user, formats them for the server and send its requests to the server - back end ? a server o does not contain user interface software o stores and maintains data; most database functions occur within it o receives requests from clients, processes them, and returns information to the client BENEFITS OF CLIENT/SERVER ENVIRONMENT: - methods of implementation: o single database server o multiple database servers § distributed § multi-tiered database - simplifies network administration - centralized user accounts - secure - centralized file storage - simplifies back-up CHAPTER 10 USER MANAGER FOR DOMAINS: - make sure all users can access resources they are allowed to access but can't access resources they don't have permission to access - user account o collection of information about a user § account name § associated password § a set of access permissions for network resources - group account o umbrella account to which individual accounts may be assigned to grant them a predetermined set of rights - two predefined accounts in NT /2000 o administrative o guest - network admin decisions relate to: o passwords o logon hours o auditing - global groups o a group meant to be used in more than one domain o can include local users - local groups o a group meant to be used in a single node o can include individual users and global users - global groups can include individual users - local groups can include individual users and global groups - native mode o no NT servers may act as a domain controllers in that domain - Mixed mode o When NT servers do function as domain controllers with 2000 Directory Service - Windows NT/2000 server default groups: o Domain admins o Domain users o Domain guests - Automatic groups o Everyone o Authenticated users o Interactive o Network - - Trust relationships o One domain permits members of another domain to access its resources o Used to manage cross-domain communications o Windows NT § 1-way or 2-way "trust" between domains, so that members of a given domain can access resources in another domain o windows 2000 § automatic trust relationships are all two way DISK MIRRORING VS DUPLEXING - Disk mirroring?data is written to two hard drives, rather than one, so that if one disks fails, then the data remains accessible - Disk duplexing ? data is written to two hard drives, each with its own disk controller, so that if one disk or controller fails, then the data remains accessible

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If Windows 98 client requires access to a Windows 2000 Server and a Novell Netware Server, you can load a redirector for each operating system onto that client - Relies on client computer's redirectors to decide to which server to send the request SERVER-BASED MULTIVENDOR SOLUTION: - A server that can readily communicate with clients from multiple vendors, such as Windows 2000 Server SAMBA: - An open source software suite that makes Linux servers look and act like Windows servers - It permits DOS or Windows clients to access Linux or Unix-based file systems and services w/o special software on the client end - A server-based solution; software and services need be installed only on a small number of servers - Can be downloaded and installed for free NFS: - Network File System ? a distributed file system originally developed at Sun Microsystems - Supports network-based file and printer sharing using TCP/IP-based network protocols - Native to Unix - Allows networked machines to export portions of their local file systems and make them available to authorized users on the network TERMINAL SERVICES: - A software subsystem for NT and 2000 server that permits clients to run large or complex applications on computers with minimal processing power by transferring the burden of client processing to the server - Providing access: § to modern Windows applications on older PCs or thin clients that might not otherwise be able to run those applications § to centralized applications or services that would otherwise have to be installed on client machines - permitting remote clients using narrow bandwidth connections to access modern, powerful Windows applications w/o bandwidth-related performance delays CENTRALIZED COMPUTING: - A computing environment in which all processing takes place on a mainframe or central computer - "Dumb" terminals connect directly to the mainframe - "Thin Clients" attached to a terminal server or some kind can also access a mainframe - creates a large volume of data and does not efficiently use the PCs FRONT END VS BACK END: - front end ? a client o presents data in a usable form o accepts instructions from the user, formats them for the server and send its requests to the server - back end ? a server o does not contain user interface software o stores and maintains data; most database functions occur within it o receives requests from clients, processes them, and returns information to the client BENEFITS OF CLIENT/SERVER ENVIRONMENT: - methods of implementation: o single database server o multiple database servers § distributed § multi-tiered database - simplifies network administration - centralized user accounts - secure - centralized file storage - simplifies back-up CHAPTER 10 USER MANAGER FOR DOMAINS: - make sure all users can access resources they are allowed to access but can't access resources they don't have permission to access - user account o collection of information about a user § account name § associated password § a set of access permissions for network resources - group account o umbrella account to which individual accounts may be assigned to grant them a predetermined set of rights - two predefined accounts in NT /2000 o administrative o guest - network admin decisions relate to: o passwords o logon hours o auditing - global groups o a group meant to be used in more than one domain o can include local users - local groups o a group meant to be used in a single node o can include individual users and global users - global groups can include individual users - local groups can include individual users and global groups - native mode o no NT servers may act as a domain controllers in that domain - Mixed mode o When NT servers do function as domain controllers with 2000 Directory Service - Windows NT/2000 server default groups: o Domain admins o Domain users o Domain guests - Automatic groups o Everyone o Authenticated users o Interactive o Network - - Trust relationships o One domain permits members of another domain to access its resources o Used to manage cross-domain communications o Windows NT § 1-way or 2-way "trust" between domains, so that members of a given domain can access resources in another domain o windows 2000 § automatic trust relationships are all two way DISK MIRRORING VS DUPLEXING - Disk mirroring?data is written to two hard drives, rather than one, so that if one disks fails, then the data remains accessible - Disk duplexing ? data is written to two hard drives, each with its own disk controller, so that if one disk or controller fails, then the data remains accessible

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