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Description

Cloud computing benets combined in the ISL Online Private Cloud bring you the best remote desktop access and support, live chat and web conferencing services.
Particularly larger organizations using the Server License might consider setting up several servers and connecting them into a corporate Internet communications
network, a Private Cloud.
Corporate Private Cloud Network includes at least two ISL Conference Proxy (ICP) installations and is fully scalable. Each ICP requires one Corporate Server License
(CSL). More ICP servers can be added to the Private Cloud network a nytime in order to expand the capacity of the system (double, triple, etc.)

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ISL Conference Proxy Private Cloud is a technology which enables you to install more than one ISL Conference Proxy for added reliability and performance. All instances of ISL Conference Proxy are automatically synchronized at all times - each has a complete copy of user database and other control data, e.g. session information. In case of a failure of one or more servers, other servers are not affected and can continue their operation without interruptions. In such cases, ISL Online products will detect that the connection to the current server was broken and will automatically reconnect to another available server.

If it is possible, ISL Conference Proxies should be installed in geographically separated locations, so that a failure of one Internet Service Provider’s network connection will not severely affect the normal operation of your ISL Private Cloud. As an added benefit, the users of ISL GRID will be redirected to the closest proxy to obtain faster network connections.

Benefits

  • Higher reliability, failure of a single server does not affect other servers
  • Better performance, the load on a single server is lessened
  • Geographically separated installations of proxies provide:
    • Resistance to ISP and internet backbone failures
    • Better performance, clients are redirected to the closest server

Technical details

Each ISL Conference Proxy server consists of two applications – ISL Conference Proxy itself and a custom DNS server. Load balancing policy is implemented on DNS level, even before the client connects to ISL Conference Proxy. DNS server and ISL Conference Proxy must be running on the same physical machine and are connected through a channel which informs DNS server about current status of the Private Cloud.

Database replication is performed over connections between proxies. Each proxy makes connections to all the other proxies in the Private Cloud, resulting in maximum replication speed.  Replication algorithm also includes automatic conflict resolution - if a server has been disconnected from the Private Cloud for a longer period of time, the algorithm will automatically update that server’s database from other servers in the Private Cloud.  Even in the worst case, where several servers were not interconnected due to network failures and were operating independently, databases will still be correctly synchronized when the servers restore connections.

 

Connection procedure

  1. Client requests resolution of Private Cloud DNS name, client’s DNS server connects to one of ISL Conference Proxy DNS servers: 
  2. Client is redirected to the most appropriate server based on load balancing policy: 
  3. When a server failure occurs (e.g. network failure, hardware problem etc.), the client automatically connects to the other server: 
  4. ISL Online products' sessions are always hosted on a single server to minimize network delays. If a server failure occurs, all clients from the server migrate to the other server (picture below represents an example for ISL Light). 

In the previous step, where you created a new packet, you were instructed to save the following two files for each server to your computer for future use: Readme.html and confproxy-4-x.license. Please open the Readme.html file - it includes installation instructions for two types of situations - first installation or upgrade from previous ISL Conference Proxy versions. This chapter is focused on the first time installation, so please follow the appropriate instructions, depending on your server's operating system.

Instructions for first installation are included below for convenience.

Please use the installation instructions below on each of the servers that will be part of your ISL GRID.

 

Windows

  1. Run the latest ISL Conference Proxy installer (please choose 32-bit or 64-bit version, depending on your operating system) and follow the installation wizard.
  2. Web administration will appear (also available from Start menu or address http://localhost:7615/conf).
  3. Login as user admin, password asd.
  4. Select Basic configuration and enter all necessary fields.

 

Note: We advise you to fill in the E-mail setup section so that ISL Conference Proxy will be able to send status information to your e-mail and inform you about critical events, session invitations etc.

  1. Select Licenses and upload the appropriate license file for this server (confproxy-4-x.license).
  2. Select Online update and download all necessary software components (ISL Light, ...).

 

Note: You may need to perform the Online update a few times, until all Conference Proxy components are updated. Please repeat the step 6 until there are no more updates available.

 

Linux

Note: If your server does not have a graphical user interface, follow steps 1 and 2 and then run the command confproxyctl headless where you will be able to change the ISL Conference Proxy admin password (default is asd) and to specify trusted networks for web administration. After that, please perform the remaining steps (starting with step 3) from a computer with a graphical user interface that is within the specified trusted network. Replace localhost in the address with the appropriate server address for your situation. An alternative is to create an ssh tunnel to your server's local port 7615 and access the web administration through the created tunnel.

  1. Download the latest ISL Conference Proxy installer (please choose 32-bit or 64-bit version, depending on your operating system).
  2. Login as root and install ISL Conference Proxy: sh ISL_Conference_Proxy_4_x_x_linux.bin
  3. Open web administration, which is available at address http://localhost:7615/conf.
  4. Login as user admin, password asd.
  5. Select Basic configuration and enter all necessary fields.

 

Note: We advise you to fill in the E-mail setup section so that ISL Conference Proxy will be able to send status information to your e-mail and inform you about critical events, session invitations etc.

  1. Select Licenses and upload the appropriate license file for this server (confproxy-4-x.license).
  2. Select Online update and download all necessary software components (ISL Light, ...).

 

Note: You may need to perform the Online update a few times, until all Conference Proxy components are updated. Please repeat the step 7 until there are no more updates available.

 

After completing the above steps for all the servers that will be part of your ISL GRID, you might be getting errors about binding ports like the example below, depending on your current network and server settings:

Server (-1) reports errors: - Cannot bind TCP port 80

Define Servers

 

First you need to add a server. Follow these instructions to find out how its done.

 

Step 1

Click on the "Add Server" button in order to create the server.

 

Step 2

Type in the Server nameOuter IP Address or DNS Name and if appropriate, the Inner IP Address. Than click "Add Server" button.

 

Step 3

Your server now appears in the servers list. 

 

You should repeat this procedure for all the servers that you wish to connect to your ISL GRID - at least two servers need to be defined to set up ISL GRID.

All servers defined for this purpose should have the same outer address, e.g. *.cp.domain.com and leave the inner IP blank.

Private Cloud Installation Procedure : https://help.islonline.com/19991

 

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