Tutorial01 - Revision history

Osgridadmin at 10:04, 21 April 2025

2025-04-21T10:04:54Z

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	* Learn the basic structure of OSgrid and how your simulator connects to it.		* Learn the basic structure of OSgrid and how your simulator connects to it.
	* Understand fundamental networking concepts relevant to hosting.		* Understand fundamental networking concepts relevant to hosting.


	Many topics discussed below are complex and could take extensive study to master fully. This guide keeps the explanations basic and focused on the essentials for getting started. If the guide states you need an IP address, please assume for now that you do. Focus first on understanding the overall picture and learning the basics ('learning to drive'). You can always delve deeper later to become an expert ('racer') or system maintainer ('mechanic').		Many topics discussed below are complex and could take extensive study to master fully. This guide keeps the explanations basic and focused on the essentials for getting started. If the guide states you need an IP address, please assume for now that you do. Focus first on understanding the overall picture and learning the basics ('learning to drive'). You can always delve deeper later to become an expert ('racer') or system maintainer ('mechanic').

Osgridadmin at 10:04, 21 April 2025

2025-04-21T10:04:22Z

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	'''OSI model''' (Open Systems Interconnection):		'''OSI model''' (Open Systems Interconnection):
	A conceptual model that standardizes network functions into seven logical layers (Physical, Data Link, Network, Transport, Session, Presentation, Application). Useful for understanding network theory and troubleshooting complex issues, not required knowledge for basic OpenSim operation. It does provide a good "base" for understanding how things work. [https://www.youtube.com/watch?v=~~HEEnLZV2wGI OSI Demystified~~] [https://www.youtube.com/watch?v=~~PBWhzz_Gn10 Networking general~~].		A conceptual model that standardizes network functions into seven logical layers (Physical, Data Link, Network, Transport, Session, Presentation, Application). Useful for understanding network theory and troubleshooting complex issues, not required knowledge for basic OpenSim operation. It does provide a good "base" for understanding how things work. [https://www.youtube.com/watch?v=PBWhzz_Gn10 Warriors of the net] [https://www.youtube.com/watch?v=HEEnLZV2wGI OSI Demystified] .

	'''Parcel''':		'''Parcel''':

Osgridadmin at 10:03, 21 April 2025

2025-04-21T10:03:15Z

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	'''OSI model''' (Open Systems Interconnection):		'''OSI model''' (Open Systems Interconnection):
	A conceptual model that standardizes network functions into seven logical layers (Physical, Data Link, Network, Transport, Session, Presentation, Application). Useful for understanding network theory and troubleshooting complex issues, ~~but~~ not required knowledge for basic OpenSim operation. ~~(Original included links to explanatory videos)~~.		A conceptual model that standardizes network functions into seven logical layers (Physical, Data Link, Network, Transport, Session, Presentation, Application). Useful for understanding network theory and troubleshooting complex issues, not required knowledge for basic OpenSim operation. It does provide a good "base" for understanding how things work. [https://www.youtube.com/watch?v=HEEnLZV2wGI OSI Demystified] [https://www.youtube.com/watch?v=PBWhzz_Gn10 Networking general].

	'''Parcel''':		'''Parcel''':

Osgridadmin at 09:53, 21 April 2025

2025-04-21T09:53:51Z

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	'''Do I need a powerful machine to run a region on OSgrid?'''		'''Do I need a powerful machine to run a region on OSgrid?'''

	~~'''~~No, the computer you currently use to access virtual worlds is likely capable of hosting a region. As a general guideline, a region requires approximately 1 GB of free RAM and 1 dedicated CPU core to run comfortably. More resources generally lead to better performance, and while OpenSimulator might function with less, performance will reflect those limitations.~~'''~~		No, the computer you currently use to access virtual worlds is likely capable of hosting a region. As a general guideline, a region requires approximately 1 GB of free RAM and 1 dedicated CPU core to run comfortably. More resources generally lead to better performance, and while OpenSimulator might function with less, performance will reflect those limitations.

	'''Goals for this class''':		'''Goals for this class''':

Osgridadmin at 09:53, 21 April 2025

2025-04-21T09:53:09Z

Show changes

Osgridadmin at 15:14, 25 July 2024

2024-07-25T15:14:40Z

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	'''Wireless''' : Transmitting your bits and bytes through ether ( thin air ) rather than wire. We prefer the latter wherever possible.		'''Wireless''' : Transmitting your bits and bytes through ether ( thin air ) rather than wire. We prefer the latter wherever possible.

	'''Viewer''' : Browser for 3d worlds. There are many different ones. Some more stable and less “buggy” than others. Some of the popular OpenSim compatible viewers are available here: https://www.osgrid.org/~~?q=node~~/6		'''Viewer''' : Browser for 3d worlds. There are many different ones. Some more stable and less “buggy” than others. Some of the popular OpenSim compatible viewers are available here: https://www.osgrid.org/login_viewers.php
			Notice. If you use Lumiya (mobile viewer) use this login URL instead of the standard one: http://lumiya.osgrid.org:80/

	'''OSI model''' : The OSI model (open systems interconnection) is a reference model for how applications can communicate over a network. (It for instance explains how linux and windows can talk to each other). This is not something you need to know by heart to run an OpenSimulator server, but it helps you understand how the internet “works”, and knowing it by heart is helpful in identifying where technical problems exist.		'''OSI model''' : The OSI model (open systems interconnection) is a reference model for how applications can communicate over a network. (It for instance explains how linux and windows can talk to each other). This is not something you need to know by heart to run an OpenSimulator server, but it helps you understand how the internet “works”, and knowing it by heart is helpful in identifying where technical problems exist.

Osgridadmin at 08:38, 7 July 2024

2024-07-07T08:38:07Z

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	'''NAT loopback Adapter''' : Tricks the PC by making the network adapter send any traffic destined for its own public address to “localhost”. This enables a user to install a viewer and server on 1 machine, and still visit his region, despite having no loopback in the router. (the traffic never actually gets sent to the router/gateway). No other machines from within the same network will be able to access it though. This is because the packets need to come in via the router, and also for them, loopback fails.		'''NAT loopback Adapter''' : Tricks the PC by making the network adapter send any traffic destined for its own public address to “localhost”. This enables a user to install a viewer and server on 1 machine, and still visit his region, despite having no loopback in the router. (the traffic never actually gets sent to the router/gateway). No other machines from within the same network will be able to access it though. This is because the packets need to come in via the router, and also for them, loopback fails.

			'''.NET Framework''' : NET is a developer platform made up of tools, programming languages, and libraries for building many different types of applications. There are various implementations of .NET. Each implementation allows .NET code to execute in different places—Linux, macOS, Windows, iOS, Android, and many more. Current opensim versions require .NET 6 and .NET 8 to operate.

	'''Map''' : Tool used since the stone age to find routes, empty space, or places….		'''Map''' : Tool used since the stone age to find routes, empty space, or places….

Osgridadmin at 11:03, 16 August 2022

2022-08-16T11:03:26Z

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	'''Before you can start running your own regions, it is rather handy if you know all the terms and names of the protocols, the software, and have a grasp of what something exactly means. This prevents you from getting real frustrated. Also what worked for others, might not work for you. Please find the list of “scary words” below, with a short simple explanation / definition of what it means and can do for you. It’s basic, not very in depth, so also the “less technical” has an idea of what’s meant. You need to however have the basic understanding of these concepts to be able to “operate” a server.		'''Before you can start running your own regions, it is rather handy if you know all the terms and names of the protocols, the software, and have a grasp of what something exactly means. This prevents you from getting real frustrated. Also what worked for others, might not work for you. Please find the list of “scary words” below, with a short simple explanation / definition of what it means and can do for you. It’s basic, not very in depth, so also the “less technical” has an idea of what’s meant. You need to however have the basic understanding of these concepts to be able to “operate” a server.

	Do i need a powerful ~~Machine~~ to run a region on OSgrid ?		Do i need a powerful machine to run a region on OSgrid ?

	No, the machine you work on now, will likely be capable of hosting a region. A region needs 1 GB of free RAM and 1 CPU core to comfortably run. More is better however, and whilst it will work on less, performance is according.		No, the machine you work on now, will likely be capable of hosting a region. A region needs 1 GB of free RAM and 1 CPU core to comfortably run. More is better however, and whilst it will work on less, performance is according.
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	https://www.youtube.com/watch?v=PBWhzz_Gn10 Networking general.		https://www.youtube.com/watch?v=PBWhzz_Gn10 Networking general.

	Now Osgrid is a grid that runs on the opensimulator engine. The very latest version of it. When a new version is released by the developers, OSgrid will install it into operational levels before any other grid. We test the opensimulator engine. SO the latest bugfixes, features, modules, updates all are packed in the ~~osgrid~~ download. You can download this, and run your own server (simulator). It is just software you can download and install, so you can run a simulator on your own pc. The software is 'modulair' meaning you can choose from different components to run your simulator. The pre-configured default is good for most people, but you can for example consider running a different physics engine, or more powerful database for your regions, depending on your needs.		Now Osgrid is a grid that runs on the opensimulator engine. The very latest version of it. When a new version is released by the developers, OSgrid will install it into operational levels before any other grid. We test the opensimulator engine. So the latest bugfixes, features, modules, updates all are packed in the OSgrid download. You can download this, and run your own server (simulator). It is just software you can download and install, so you can run a simulator on your own pc. The software is 'modulair' meaning you can choose from different components to run your simulator. The pre-configured default is good for most people, but you can for example consider running a different physics engine, or more powerful database for your regions, depending on your needs.

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	*- [[Tutorial02\|< NEXT>]]		*- [[Tutorial02\|< NEXT>]]
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Osgridadmin at 11:02, 16 August 2022

2022-08-16T11:02:28Z

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	'''Before you can start running your own regions, it is rather handy if you know all the terms and names of the protocols, the software, and have a grasp of what something exactly means. This prevents you from getting real frustrated. Also what worked for others, might not work for you. Please find the list of “scary words” below, with a short simple explanation / definition of what it means and can do for you. It’s basic, not very in depth, so also the “less technical” has an idea of what’s meant. You need to however have the basic understanding of these concepts to be able to “operate” a server.		'''Before you can start running your own regions, it is rather handy if you know all the terms and names of the protocols, the software, and have a grasp of what something exactly means. This prevents you from getting real frustrated. Also what worked for others, might not work for you. Please find the list of “scary words” below, with a short simple explanation / definition of what it means and can do for you. It’s basic, not very in depth, so also the “less technical” has an idea of what’s meant. You need to however have the basic understanding of these concepts to be able to “operate” a server.

			Do i need a powerful Machine to run a region on OSgrid ?

			No, the machine you work on now, will likely be capable of hosting a region. A region needs 1 GB of free RAM and 1 CPU core to comfortably run. More is better however, and whilst it will work on less, performance is according.


	'''Goals for this class''' :		'''Goals for this class''' :

Osgridadmin at 10:45, 16 August 2022

2022-08-16T10:45:42Z

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	OpenSimulator is written in C#, running both on Windows over the .NET Framework and on Unix-like machines over the Mono framework. The source code is released under a BSD License,		OpenSimulator is written in C#, running both on Windows over the .NET Framework and on Unix-like machines over the Mono framework. The source code is released under a BSD License,
	a commercially friendly license to embed OpenSimulator in products. If you want to know about the development history, see History on the opensim wiki http://opensimulator.org/wiki/User_Documentation.		a commercially friendly license to embed OpenSimulator in products. If you want to know about the development history, see History on the opensim wiki. You find their documentation here: http://opensimulator.org/wiki/User_Documentation.

	Out of the box, OpenSimulator can be used to simulate virtual environments similar to Second Life™, given that it supports the core of SL's messaging protocol.		Out of the box, OpenSimulator can be used to simulate virtual environments similar to Second Life™, given that it supports the core of SL's messaging protocol.
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	'''Goals for this class''' :		'''Goals for this class''' :

	~~♦Get~~ a basic understanding of the names & abbreviations of all the terms, services and protocols used running a simulator.		♦ Get a basic understanding of the names & abbreviations of all the terms, services and protocols used running a simulator.
	~~♦Understanding~~ what these things do, and why you need them.		♦ Understanding what these things do, and why you need them.
	~~♦How~~ is OSgrid setup, and how do you and your simulators fit in that picture		♦ How is OSgrid setup, and how do you and your simulators fit in that picture
	~~♦Understanding~~ Basic networking.		♦ Understanding Basic networking.

	A lot of the things discussed below are very “broad” and will take at least a year of study to learn all ins and outs, so we keep it basic, and within the scope of our class. If we tell you, you’ll need a IP address, please assume you do. Can always ask questions later. First get the global picture, learn to drive. You can always grow to be a racer or even become a mechanic later.		A lot of the things discussed below are very “broad” and will take at least a year of study to learn all ins and outs, so we keep it basic, and within the scope of our class. If we tell you, you’ll need a IP address, please assume you do. Can always ask questions later. First get the global picture, learn to drive. You can always grow to be a racer or even become a mechanic later.
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	'''Console''' : Also called Simulator, instance or Shell. It is the “Dos-like” black box screen /shell with the command prompt that appears when you start “OpenSim.exe”. That physically “is” the simulator software. It is the server on which the regions run.		'''Console''' : Also called Simulator, instance or Shell. It is the “Dos-like” black box screen /shell with the command prompt that appears when you start “OpenSim.exe”. That physically “is” the simulator software. It is the server on which the regions run.

	'''Coordinates''' : This is the x,y designation that determines a region's position within the grid. see https://www.osgrid.org/~~?q=node/17~~		'''Coordinates''' : This is the x,y designation that determines a region's position within the grid. see https://www.osgrid.org/map.php

	'''CPU''' : Central processing unit. The unit that calculates all the instructions of your computer. The more “cores” it has available, the faster it can calculate. The data processed by a CPU generally comes from the hard drive, is loaded into the RAM, and queued for processing. Big processes are cached on the hard drive, whilst the CPU processes the current active data in the RAM memory.		'''CPU''' : Central processing unit. The unit that calculates all the instructions of your computer. The more “cores” it has available, the faster it can calculate. The data processed by a CPU generally comes from the hard drive, is loaded into the RAM, and queued for processing. Big processes are cached on the hard drive, whilst the CPU processes the current active data in the RAM memory.