Network Operating System (NOS) - Revision history

User at 23:49, 30 September 2025

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User at 16:00, 8 March 2024

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User at 18:25, 10 February 2022

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 *[[Operating System (OS)]]
 *[[Mobile Operating System]]
-*[[IT Strategy (Information Technology Strategy)]]
+*[[IT Strategy (Information Technology Strategy)|IT Strategy]]
 *[[IT Governance]]
 *[[Enterprise Architecture]]

← Older revision		Revision as of 16:00, 8 March 2024
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−	~~'''~~References~~'''<br />~~	+	== See Also ==
−	<references/>	+	*[[Operating System (OS)]]
		+	*[[Mobile Operating System]]
		+	*[[IT Strategy (Information Technology Strategy)]]
		+	*[[IT Governance]]
		+	*[[Enterprise Architecture]]
		+	*[[Chief Information Officer (CIO)]]
		+	*[[IT Sourcing (Information Technology Sourcing)]]
		+	*[[IT Operations (Information Technology Operations)]]
		+	*[[E-Strategy]]
		+
		+
		+
		+
		+
		+
		+	== References ==
		+	<references />

← Older revision		Revision as of 18:25, 10 February 2022
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	*Security monitoring on all resources in the network		*Security monitoring on all resources in the network
	*Setting priority to print jobs in the network		*Setting priority to print jobs in the network
		+
		+
		+	'''Examples of Network Operating Systems'''<ref>Examples of Network Operating Systems [https://en.wikipedia.org/wiki/Network_operating_system Wikipedia]</ref><br />
		+	Network operating systems can be embedded in a router or hardware firewall that operates the functions in the network layer (layer 3).[6] Notable network operating systems include:
		+
		+	<u>''Proprietary network operating systems''</u><br />
		+	*Cisco IOS, a family of network operating systems used on most Cisco Systems routers and current Cisco network switches. Earlier switches ran the Catalyst Operating System CatOS
		+	*RouterOS by MikroTik.
		+	*ZyNOS, used in network devices made by ZyXEL.
		+	*LCOS(LX/FX/SX), used in network devices made by LANCOM Systems.[7]
		+
		+	<u>''NetBSD, FreeBSD, or Linux based operating systems''</u><br />
		+	*DD-WRT, Linux kernel based DD-WRT is Linux-based firmware for wireless routers and access points as well as low-cost networking device platforms such as the Linksys WRT54G
		+	*Dell Networking Operating System, DNOS9 is NetBSD based, while OS10 uses the Linux kernel
		+	*Extensible Operating System runs on switches from Arista and uses an unmodified Linux kernel
		+	*ExtremeXOS (EXOS), used in network devices made by Extreme Networks
		+	*FTOS or Force10 Operating System, is the firmware family used on Force10 Ethernet switches
		+	*OpenWrt used to route IP packets on embedded devices
		+	*pfSense, a fork of M0n0wall, uses PF
		+	*OPNsense, a fork of pfSense
		+	*SONiC, a Linux-based network operating system developed by Microsoft
		+	*Cumulus Linux distribution, which uses the full TCP/IP stack of Linux
		+	*VyOS, an open source fork of the Vyatta routing package
		+	*ONOS, an open source SDN operating system (hosted by The Linux Foundation) for communications service providers that is designed for scalability, high performance and high availability.

@@ Line 22: / Line 22: @@
 *Client M/C
 *Peer M/C
-Communication medium – Guided media – coaxial cable, fiber optic cables.
+*Communication medium – Guided media – coaxial cable, fiber optic cables.
-Unguided media – microwaves, infra-red waves
+*Unguided media – microwaves, infra-red waves
-Connecting Terminals – Routers, Bridges, Hubs, Repeaters, Gateways, Switches, hub, Network Interface Card, Shared printers.
+*Connecting Terminals – Routers, Bridges, Hubs, Repeaters, Gateways, Switches, hub, Network Interface Card, Shared printers.
 These are some programs which are installed on the network machines.
+*Networking Operating System – Unix, Linux, Windows 2000, Windows 98, Windows XP.
-Networking Operating System – Unix, Linux, Windows 2000, Windows 98, Windows XP.
+*Protocol Suite – OSI Model (Open System Interconnections), TCP / IP Model

← Older revision		Revision as of 15:59, 10 February 2022
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	A '''network operating system (NOS)''' is an operating system that manages network resources: essentially, an operating system that includes special functions for connecting computers and devices into a local area network (LAN). The NOS manages multiple requests (inputs) concurrently and provides the security necessary in a multiuser environment. It may be a completely self-contained operating system, such as NetWare, Unix, Windows 2000, or Mac OS X, or it may require an existing operating system in order to function (e.g., Windows 3.11 for Workgroups requires DOS; LAN Server requires OS/2; LANtastic requires DOS). In addition to file and print services, a NOS may also offer directory services and a messaging system (email), as well as network management and multiprotocol routing capabilities.<ref>What is a Network Operating System (NOS)? [https://kb.iu.edu/d/ajlq Indiana University]</ref>		A '''network operating system (NOS)''' is an operating system that manages network resources: essentially, an operating system that includes special functions for connecting computers and devices into a local area network (LAN). The NOS manages multiple requests (inputs) concurrently and provides the security necessary in a multiuser environment. It may be a completely self-contained operating system, such as NetWare, Unix, Windows 2000, or Mac OS X, or it may require an existing operating system in order to function (e.g., Windows 3.11 for Workgroups requires DOS; LAN Server requires OS/2; LANtastic requires DOS). In addition to file and print services, a NOS may also offer directory services and a messaging system (email), as well as network management and multiprotocol routing capabilities.<ref>What is a Network Operating System (NOS)? [https://kb.iu.edu/d/ajlq Indiana University]</ref>
		+
		+	The network operating system is deployed on network servers to enable administrators to manage network resources such as data storage areas, network printers and communication services. Because most organizations are increasingly dependent on computing services, and also partly due to the phenomenal growth of the Internet and the World Wide Web, the number of users on a typical enterprise LAN is growing almost daily. Keeping track of all these users and the resources they need is becoming increasingly difficult, time consuming and costly. One of the most important facilities provided by a network operating system, therefore, is the ability to create and manage user accounts effectively.<ref>What do Network Operating Systems do? [https://www.technologyuk.net/computing/computer-software/operating-systems/network-operating-systems.shtml Technology UK]</ref>


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	Today, distributed computing and groupware applications have become the norm. Computer operating systems include a networking stack as a matter of course. During the 1980s the need to integrate dissimilar computers with network capabilities grew and the number of networked devices grew rapidly. Partly because it allowed for multi-vendor interoperability, and could route packets globally rather than being restricted to a single building, the Internet protocol suite became almost universally adopted in network architectures. Thereafter, computer operating systems and the firmware of network devices tended to support Internet protocols.		Today, distributed computing and groupware applications have become the norm. Computer operating systems include a networking stack as a matter of course. During the 1980s the need to integrate dissimilar computers with network capabilities grew and the number of networked devices grew rapidly. Partly because it allowed for multi-vendor interoperability, and could route packets globally rather than being restricted to a single building, the Internet protocol suite became almost universally adopted in network architectures. Thereafter, computer operating systems and the firmware of network devices tended to support Internet protocols.
		+
		+
		+	'''Components of Network Operating Systems'''<ref>What are the Components of Network Operating Systems? [https://digitalthinkerhelp.com/network-operating-system-nos-tutorial-examples-and-types/ Digital Thinker Help]</ref><br />
		+	Components of Network Operating Systems can be divided into Hardware and Software components.<br />
		+
		+	<u>''Hardware Components''</u><br />
		+	There are some devices which are physically connected with each other.
		+	*Server M/C
		+	*Client M/C
		+	*Peer M/C
		+	Communication medium – Guided media – coaxial cable, fiber optic cables.
		+	Unguided media – microwaves, infra-red waves
		+	Connecting Terminals – Routers, Bridges, Hubs, Repeaters, Gateways, Switches, hub, Network Interface Card, Shared printers.
		+	Software Components
		+
		+	These are some programs which are installed on the network machines.
		+
		+	Networking Operating System – Unix, Linux, Windows 2000, Windows 98, Windows XP.
		+	Protocol Suite – OSI Model (Open System Interconnections), TCP / IP Model

@@ Line 39: / Line 39: @@
-[[File:Client server Network.png|300px|Client server Network]]
+[[File:Client server Network.png|400px|Client server Network]]
@@ Line 71: / Line 71: @@
 *High cost to buying server.
 *Regular updating and maintenance are required.

← Older revision		Revision as of 15:38, 10 February 2022
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−	[[File:Peer-to-peer Network.png\|~~400px~~\|Peer-to-peer Network]]	+	[[File:Peer-to-peer Network.png\|300px\|Peer-to-peer Network]]


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−	[[File:~~File~~.png\|~~200px~~\|~~thumb\|left\|alt text~~]]	+	[[File:Client server Network.png\|300px\|Client server Network]]

@@ Line 21: / Line 21: @@
 *Decentralized - No central repository for files and applications.
 *Security - Does not provide the security available on a client/server network.
 *Client/Server: Client/server network operating systems allow the network to centralize functions and applications in one or more dedicated file servers (See fig. 2). The file servers become the heart of the system, providing access to resources and providing security. Individual workstations (clients) have access to the resources available on the file servers. The network operating system provides the mechanism to integrate all the components of the network and allow multiple users to simultaneously share the same resources irrespective of physical location. UNIX/Linux and the Microsoft family of Windows Servers are examples of client/server network operating systems.
@@ Line 33: / Line 37: @@
 *Maintenance - Large networks will require a staff to ensure efficient operation.
 *Dependence - When server goes down, operations will cease across the network.

@@ Line 13: / Line 13: @@
 '''Types of Network Operating Systems'''<ref>What are the two major types of Network Operating Systems? [http://fcit.usf.edu/network/chap6/chap6.htm University of South Florida]</ref><br />
-Unlike operating systems, such as Windows, that are designed for single users to control one computer, network operating systems (NOS) coordinate the activities of multiple computers across a network. The network operating system acts as a director to keep the network running smoothly.
+Unlike operating systems, such as Windows, that are designed for single users to control one computer, network operating systems (NOS) coordinate the activities of multiple computers across a network. The network operating system acts as a director to keep the network running smoothly. The two major types of network operating systems are, 1) Peer-to-Peer, and 2) Client/Server. Nearly all modern networks are a combination of both. The networking design can be considered independent of the servers and workstations that will share it.
+*Peer-to-Peer: Peer-to-peer network operating systems allow users to share resources and files located on their computers and to access shared resources found on other computers. However, they do not have a file server or a centralized management source (See fig. 1). In a peer-to-peer network, all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed primarily for small to medium local area networks. Nearly all modern desktop operating systems, such as Macintosh OSX, Linux, and Windows, can function as peer-to-peer network operating systems.<br />
-The two major types of network operating systems are:
+''Advantages of a peer-to-peer network'':
+*Less initial expense - No need for a dedicated server.
-Peer-to-Peer
+*Setup - An operating system (such as Windows XP) already in place may only need to be reconfigured for peer-to-peer operations.
-Client/Server
+''Disadvantages of a peer-to-peer network'':<br />
-Nearly all modern networks are a combination of both. The networking design can be considered independent of the servers and workstations that will share it.
+*Decentralized - No central repository for files and applications.
+*Security - Does not provide the security available on a client/server network.

← Older revision		Revision as of 15:17, 10 February 2022
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	Today, distributed computing and groupware applications have become the norm. Computer operating systems include a networking stack as a matter of course. During the 1980s the need to integrate dissimilar computers with network capabilities grew and the number of networked devices grew rapidly. Partly because it allowed for multi-vendor interoperability, and could route packets globally rather than being restricted to a single building, the Internet protocol suite became almost universally adopted in network architectures. Thereafter, computer operating systems and the firmware of network devices tended to support Internet protocols.		Today, distributed computing and groupware applications have become the norm. Computer operating systems include a networking stack as a matter of course. During the 1980s the need to integrate dissimilar computers with network capabilities grew and the number of networked devices grew rapidly. Partly because it allowed for multi-vendor interoperability, and could route packets globally rather than being restricted to a single building, the Internet protocol suite became almost universally adopted in network architectures. Thereafter, computer operating systems and the firmware of network devices tended to support Internet protocols.
		+
		+
		+	'''Types of Network Operating Systems'''<ref>What are the two major types of Network Operating Systems? [http://fcit.usf.edu/network/chap6/chap6.htm University of South Florida]</ref><br />
		+	Unlike operating systems, such as Windows, that are designed for single users to control one computer, network operating systems (NOS) coordinate the activities of multiple computers across a network. The network operating system acts as a director to keep the network running smoothly.
		+
		+	The two major types of network operating systems are:
		+
		+	Peer-to-Peer
		+	Client/Server
		+	Nearly all modern networks are a combination of both. The networking design can be considered independent of the servers and workstations that will share it.
		+
		+	Peer-to-Peer
		+	Peer-to-peer network operating systems allow users to share resources and files located on their computers and to access shared resources found on other computers. However, they do not have a file server or a centralized management source (See fig. 1). In a peer-to-peer network, all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed primarily for small to medium local area networks. Nearly all modern desktop operating systems, such as Macintosh OSX, Linux, and Windows, can function as peer-to-peer network operating systems.
		+
		+