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Preemption of Remote User by a Remote Administrator

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Preemption of Remote User by a Remote Administrator If a remote administrator attempts to access a server that is being accessed by a remote user, a message appears asking that the administrator wait while the user is informed that they will be preempted. The remote user cannot reject the preemption request and will be disconnected. The time period given before disconnection is defined by the Video session preemption timeout setting in the Session dialog box. For information, see "Viewing and Configuring Remote Console Switch Parameters" on page 141. NOTE: No time period will be displayed in cases where the server being viewed is attached to an Avocent switch. Preemption of a Local User/Remote Administrator by a Remote Administrator If an administrator attempts to access a server that is being accessed by the local user or by another remote administrator with equal privileges, the currently connected user can accept or reject the preemption request. A message appears asking the connected local user or remote administrator whether they want to accept the preemption request. If the preemption request is rejected a message appears informing the remote administrator that their request has been rejected and that they cannot access the server. NOTE: If the server being viewed is attached to an Avocent switch, the user is not given the option to accept or reject preemption. NOTE: In scenarios where a preemption request can be rejected, the Session Preemption Request dialog box will appear. This dialog allows you to accept the preemption request by clicking the Accept button or to reject the preemption request by clicking the Reject button or by closing the dialog box. Connection Sharing Connection sharing allows multiple users to interact with a target device at the same time. When you are a primary user, you may be notified by a dialog box that another user would like to share your connection. You may select Yes to accept sharing, No to reject sharing, or click the Passive Share box to allow the new user to share without having any control over the connection. Using the Viewer 126

Section	Page
Safety Precautions	14
General	14
Rack Mounting of Systems	16
LAN Options	17
Product Overview	18
Remote Console Switch Features and Benefits	18
SIP Intelligent Module	18
Multiplatform Support	19
Interoperability with Avocent® IQ Module Intelligent Cabling	19
OSCAR Interface	19
On-board Web Interface	19
DSView® 3 Management Software Plug-in	19
Virtual Media	20
Security	20
Encryption	20
Operation Modes	21
Video	21
FLASH Upgradeable	21
Cascade (Tier) Expansion	22
Remote Console Switch Software Features and Benefits	22
Easy to Install and Configure	22
Powerful Customization Capabilities	23
Extensive Remote Console Switch Management	23
IPv4 and IPv6 Capabilities	23
LDAP	23
Interoperability with Avocent Products	23
Installation	25
Remote Console Switch Quick Setup Checklist	25
Remote Console Switch Installation and Setup	27
Getting Started	27
Setting Up Your Network	28
Keyboards	28
Rack Mounting Your Remote Console Switch Unit	28
Installing the Remote Console Switch Unit	32
Video Optimization	41
Mouse Acceleration	41
Connecting a SIP	41
Adding a Cascade Switch	43
Cascading with Legacy Switches	46
Adding a PEM (Optional)	47
Connecting to the Network	49
On-board Web Interface Installation and Setup	49
Supported Browsers	49
Launching the On-board Web Interface	49
Remote Console Switch Software Installation and Setup	50
Installing the Remote Console Switch Software	51
Controlling Your System at the Analog Ports	53
Viewing and Selecting Ports and Devices	53
Selecting Devices	55
Soft Switching	55
Navigating the OSCAR Interface	56
Configuring OSCAR Interface Menus	58
Changing the Display Behavior	59
Setting Console Security	61
Controlling the Status Flag	63
Setting the Interface Language	65
Assigning Device Types	65
Assigning Device Names	67
Configuring Network Settings	68
Displaying Version Information	70
Scanning Your System	70
Setting the Preemption Warning	72
Displaying Configuration Information	73
Running System Diagnostics	74
Broadcasting to Servers	75
Power Controlling Devices	77
Power window	77
PDUs window	78
PDU Settings window	78
PDU Inlets window	79
PDU Outlets window	80
Remote Console Switch Software Basic Operations	82
Launching the Remote Console Switch Software	82
Navigating the Remote Console Switch Software	82
Viewing Your System in the Explorer	83
Explorer Window Features	84
Adding a Remote Console Switch or Avocent Remote Console Switch	85
Accessing Your Remote Console Switch	92
Launching the VNC or RDP Viewer	94
Changing Server and Switch Properties	95
Changing General Properties	95
Changing Server Network Properties	97
Changing Switch Network Properties	98
Changing Information Properties	100
Viewing Server Connections Properties	101
VNC properties	102
RDP properties	104
Accessing a Server via a Browser Window	106
Changing Server and Switch Options	106
General options	106
HTTP/HTTPS options	108
VNC options	108
RDP options	109
Organizing Your System	110
Modifying Custom Field Names	112
Creating Folders	112
Assigning a Unit to a Site, Location, or Folder	113
Deleting and Renaming	114
Customizing the Explorer Window	116
Modifying the Selected View on Startup	116
Changing the Default Browser	117
Managing Your Local Databases	117
Saving a Database	117
Exporting a Database	118
Loading a Database	119
Using the Viewer	120
Accessing Servers from the Remote Console Switch Software	120
Accessing Servers from the On-board Web Interface	122
Interacting With the Server Being Viewed	123
Viewer Window Features	124
Adjusting the Viewer	125
Adjusting the Viewer Resolution	128
Adjusting the Video Quality	129
Minimizing Remote Video Session Discoloration	131
Improving Screen Background Color Display	131
Setting Mouse Scaling	132
Minimizing Mouse Trailing	133
Improving Mouse Performance	133
Reducing Mouse Cursor Flickering	134
Viewing Multiple Servers Using the Scan Mode	134
Scanning Your Servers	134
Thumbnail View Status Indicators	137
Navigating the Thumbnail Viewer	138
Using Macros to Send Keystrokes to the Server	139
Session Options - General Tab	140
Screen Capturing	141
Preemption	142
Preemption of Remote User by a Remote Administrator	143
Preemption of a Local User/Remote Administrator by a Remote Administrator	143
Connection Sharing	143
Virtual Media	146
Common Virtual Media Terms	146
Configuring Virtual Media Locally	147
Enabling/Disabling Virtual Media Using the OSCAR Interface	147
Setting Virtual Media Options Using the OSCAR Interface	148
Configuring Virtual Media Remotely	150
Enabling/Disabling Virtual Media Using the On-board Web Interface	150
Setting Virtual Media Options Using the On-board Web Interface	152
Launching Virtual Media	152
Virtual Floppy Drive	154
Virtual CD/DVD Drive	155
Virtual Media Connection Status	155
Reserving a Virtual Media Session	156
Resetting the USB Bus	156
Managing Your Remote Console Switch Using the On-board Web Interface	157
Migrating Switches from the Remote Console Switch Software	157
Viewing and Configuring Remote Console Switch Parameters	158
Changing Remote Console Switch Parameters	158
Setting Up User Accounts	160
Locking and Unlocking User Accounts	164
Enabling and Configuring SNMP	165
Enabling Individual SNMP Traps	167
Viewing and Resynchronizing Server Connections	168
Modifying a Server Name	169
Viewing and Configuring Tiered Switch Connections	170
Viewing the SIPs and Avocent IQ Modules	171
Viewing Remote Console Switch Version Information	172
SIPs Subcategory	173
Upgrading Firmware	176
Controlling User Status	179
Rebooting Your System	181
Managing Remote Console Switch Configuration Files	181
Managing User Databases	182
Installing a Web Certificate	184
Managing PDUs	185
Migrating Your Remote Console Switch	188
Accessing the AMP	188
Upgrading Firmware Using the AMP	189
Upgrading Remote Console Switch Firmware	189
Migrating Remote Console Switches to the On- board Web Interface	190
Using the Resync Wizard	192
LDAP Feature for the Remote Console Switch	194
Overview	194
The Structure of Active Directory	194
Domain Controller Computers	195
Object Classes	195
Attributes	196
Schema Extensions	196
Standard Schema versus Dell Extended Schema	197
Standard Installation	198
Configure the Override Admin Account	199
Configuring DNS Settings	199
Configuring the Network Time Protocol Settings	200
Configuring the LDAP Authentication Parameters	201
LDAP SSL Certificates	204
Enabling SSL on a Domain Controller	204
Login Timeout	209
CA Certificate Information Display	209
Configuring Group Objects	210
Active Directory Object Overview for Standard Schema	213
Dell Extended Schema Active Directory Object Overview	214
Configuring Active Directory with Dell Schema Extensions to Access Your RCS	219
Extending the Active Directory Schema (Optional)	219
Installing the Dell Extension to the Active Directory Users and Computers Snap-In (Optional)	220
Adding Users and Privileges to Active Directory with Dell Schema Extensions	221
Creating a SIP Object	221
Creating a Privilege Object	221
Using Dell Association Objects Syntax	222
Creating an Association Object	223
Adding Objects to an Association Object	223
Console Redirection Access Security	224
Using Active Directory to Log In to the Remote Console Switch	225
Target Device Naming Requirements for LDAP Implementation	225
Frequently Asked Questions	226
Appendix A: Updating the Remote Console Switch Software	229
Appendix B: Remote Console Switch Software Keyboard and Mouse Shortcuts	230
Appendix C: TCP Ports	233
Appendix D: MIBs and SNMP Traps	234
MIB Groups	235
Enterprise Traps	248
Appendix E: FLASH Upgrades	264
Upgrading the Remote Console Switch	264
Upgrading the SIP module firmware	267
Appendix F: Technical Specifications	270
Appendix G: Technical Support	274

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Using the Viewer

126

Preemption of Remote User by a Remote Administrator

If a remote administrator attempts to access a server that is being accessed by

a remote user, a message appears asking that the administrator wait while the

user is informed that they will be preempted. The remote user cannot reject

the preemption request and will be disconnected. The time period given

before disconnection is defined by the Video session preemption timeout

setting in the

Session

dialog box. For information, see "Viewing and

Configuring Remote Console Switch Parameters" on page 141.

NOTE:

No time period will be displayed in cases where the server being viewed is

attached to an Avocent switch.

Preemption of a Local User/Remote Administrator by a Remote

Administrator

If an administrator attempts to access a server that is being accessed by the

local user or by another remote administrator with equal privileges, the

currently connected user can accept or reject the preemption request. A

message appears asking the connected local user or remote administrator

whether they want to accept the preemption request. If the preemption

request is rejected a message appears informing the remote administrator that

their request has been rejected and that they cannot access the server.

NOTE:

If the server being viewed is attached to an Avocent switch, the user is not

given the option to accept or reject preemption.

NOTE:

In scenarios where a preemption request can be rejected, the Session

Preemption Request dialog box will appear. This dialog allows you to accept the

preemption request by clicking the Accept button or to reject the preemption

request by clicking the Reject button or by closing the dialog box.

Connection Sharing

Connection sharing allows multiple users to interact with a target device at

the same time. When you are a primary user, you may be notified by a dialog

box that another user would like to share your connection. You may select

Yes

to accept sharing,

to reject sharing, or click the

Passive Share

box to allow

the new user to share without having any control over the connection.