Preparing for Configuration

Sun Ray servers can be deployed on dedicated private networks and on shared networks. Sun Ray Server Software deployments on shared networks, whether routed or non-routed shared networks (LANs), offer many benefits to users, especially hotdesking. Shared networks can be configured with or without:

If you are not sure about any aspect of your network configuration, you may want to consult your IT staff. For more information, see Deployment on Shared Networks of the Sun Ray Server Software 4.1 Administrator’s Guide.

Configuration Worksheets

Fill out these worksheets so that the information is readily available during the actual configuration process. Values that are provided in italics are only examples and should not be used. Values provided in this font are defaults and can be used. Superscripted numbers ⁽⁷⁾ refer to footnotes at the end of this worksheet.

If you are configuring for a failover group, fill in this portion of the worksheet:

TABLE 6-4 First and Last Unit Address in a Failover Group
Server	First Unit Address	Last Unit Address
Primary Secondary Secondary Secondary	`192.168.128.16` `192.168.128.56` `192.168.128.96` `192.168.128.136`	`192.168.128.55` `192.168.128.95` `192.168.128.135` `192.168.128.175`

Basic Network Topology

Before configuring a Sun Ray server on a shared network, you should understand what your basic network configuration looks like. The following figures illustrate, in simplified form, the most common types.

In contrast to private network configurations, shared network configurations with existing DHCP servers may require bootp forwarding in order to function properly with existing network infrastructure.

Many newer configurations resemble FIGURE 6-2, which illustrates a shared network with non-routed Sun Ray DTUs.

Some new configurations use shared, routed networks, as illustrated in FIGURE 6-3.

^{1 (TableFootnote) These values are different for each Sun Ray server, even if that server is part of a failover group.}

^{2 (TableFootnote) These values must be unique among the servers in a failover group. The following guidelines help you determine what addresses to allocate for each Sun Ray server:

- X = (Number of DTUs/(Number of servers - 1)) - 1

- First unit address for primary server= 192.168.128.16

- Last unit address for all servers = X + first unit address. If last unit address is greater than 240, reduce to 240.

- First unit address for secondary servers = 1 + last unit address of previous server.} If first unit address is greater than 239, configure for a class B network. For example: 120 DTUs, 4 servers. X= 39

^{3 (TableFootnote) These values are the same as the interface host address by default.}

^{4 (TableFootnote) The value entered for the number of users is the greater of:

- The total number of Sun Ray DTUs

- The total number of disconnected and active sessions}

^{5 (TableFootnote) This signature must be the same for every Sun Ray server in a failover group. The signature requires at least one numeric character.}

Aspect or Variable	Default Value, Example, or (Other)	Your Primary Server Value	Your Secondary Server Value
Configuring the Sun Ray interconnect interface using `utadm`	(Enter start time here)
Interface name	eth1
Host address ^[1]	`192.168.128.1`
Net mask	`255.255.255.0`
Net address	`192.168.128.0`
Host name^*	hostname-interface-name
If Sun Ray server is used for IP address allocation
First Sun Ray DTU address	`192.168.128.16`
Number of Sun Ray DTU addresses^{^[2]}	X
Firmware server^{^[3]}	`192.168.128.1`
Router^d	`192.168.128.1`
Specify additional server list? (optional)	(yes or no)
If yes, filename	filename
Or, Server IP address	`192.168.128.2`
Configuring Sun Ray Server Software using `utconfig`	(Enter start time here)
Admin password	adminpass
Configure Admin GUI? If yes, then:
Sun Ray admin server port number	`1660`
Enable remote administration? (optional)	(yes or no)
Enable secure connection? (optional)	(yes or no)
Configure Kiosk Mode? (optional)	(yes or no)
If yes, User prefix	`utku`
Group name	`utkiosk`
User ID range start	`150000`
Number of users^{^[4]}	`25`
Configure failover group? (optional)	(yes or no)
If yes, Failover group signature^{^[5]}	signature1

Aspect or Variable	Default Value, Example, or (Other)	Your Primary Server Value	Your Secondary Server Value
Configuring the Sun Ray interconnect interface using `utadm`	(Enter start time here)
Subnetwork	`192.168.128.0`
Host address⁽¹⁾	`192.168.128.1`
Net mask	`255.255.255.0`
Net address	`192.168.128.0`
Host name⁽¹⁾	hostname-interface-name
If Sun Ray server is used for IP address allocation
First Sun Ray DTU address⁽²⁾	`192.168.128.16`
Number of Sun Ray DTU addresses⁽²⁾	X
Firmware server⁽³⁾	`192.168.128.1`
Router⁽³⁾	`192.168.128.1`
Specify additional server list? (optional)	(yes or no)
If yes, filename	filename
Or, Server IP address	`192.168.128.2`

Aspect or Variable	Default Value, Example, or (Other)	Your Primary Server Value	Your Secondary Server Value
Configuring the Sun Ray server hierarchy using `utreplica` (Required for failover groups)	(Enter start time here)
Primary Sun Ray server host name⁽¹⁾	primary-server
Secondary Sun Ray server host name⁽¹⁾	secondary-server

Configuration Tasks

Configuration Worksheets

Basic Network Topology