Dell OpenManage Essentials Version 1.0 Manual de usuario Pagina 179
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Valorado. / 5. Basado en revisión del cliente
Frequently Asked Questions 169
If you are seeing this issue, read the KB article at
support.microsoft.com/?scid=kb;en-us;951016 and apply the registry work as
described. This resolution applies to managed nodes with Windows Server
2008 R2.
Question: What are SNMP authentication traps?
Answer: An authentication trap is sent when an SNMP agent is hit with an
enquiry that contains a community name it does not recognize. The
community names are case-sensitive.
The traps are useful to find if someone is probing a system, although its better
nowadays to just sniff packets and find out the community name.
If you use multiple community names on the network, and some
management might overlap, users may want to turn these off as they become
false positives (annoyances).
For more information, see technet.microsoft.com/en-us/library/cc959663.aspx.
When an SNMP agent receives a request that does not contain a valid
community name or the host that is sending the message is not on the list of
acceptable hosts, the agent can send an authentication trap message to one or
more trap destinations (management systems). The trap message indicates
that the SNMP request failed authentication. This is a default setting.
Question: Why does OpenManage Essentials not support entering host
names with underscore in the discovery wizard?
Answer: Per RFC 952, underscores are not valid in DNS names. A name (net,
host, gateway, or domain name) is a text string up to 24 characters drawn
from the alphabet (A-Z), digits (0-9), minus sign (-), and period (.). Periods
are only allowed when they serve to delimit components of domain style
names.
For more information see, ietf.org/rfc/rfc952.txt and
zytrax.com/books/dns/apa/names.html
Question: What is On-demand?
Answer: On-demand is an operation where a managed system is checked for
status/health by OpenManage Essentials when an SNMP trap is received.
There are no settings to be changed to enable the on-demand feature.
However, the IP address of the management system must be available in the
banderaUG.book Page 169 Friday, May 11, 2012 2:40 PM
- User’s Guide 1
- Notes and Cautions 2
- Contents 3
- 4 Contents 4
- 6 Contents 6
- 8 Contents 8
- 10 Contents 10
- 12 Contents 12
- 14 Contents 14
- About OpenManage Essentials 15
- 6 About OpenManage Essentials 16
- Requirements 17
- Database Management Systems 18
- Installing Repository Manager 22
- Migration Use Cases 24
- Customizing the Home Portal 31
- Updating the Portal Data 32
- Reports (Components) 33
- Filtering Data 33
- OpenManage Essentials Home 35
- Portal - Reference 35
- Device by Status 36
- Alerts by Severity 36
- Task Status 37
- Discovering and Inventorying 39
- NOTE: Both 45
- Legend and Definitions 46
- Excluding Ranges 49
- Scheduling Discovery 50
- Scheduling Inventory 51
- Discovery And Inventory 53
- Reference 53
- Last Discovery and Inventory 54
- Viewing Device Summary 55
- Discovery Ranges 57
- Add Discovery Range 58
- ICMP Configuration 60
- SNMP Configuration 60
- WMI Configuration 62
- Storage Configuration 62
- WS-Man Configuration 62
- IPMI Configuration 63
- Discovery Range Action 64
- Add Exclude Range 65
- Configuration 66
- Inventory Schedule 67
- Status Configuration 68
- Managing Devices 71
- Nodes and Symbols Description 72
- Device Details 73
- Viewing Device Inventory 74
- Viewing Alerts Summary 74
- Viewing System Event Logs 74
- Searching for Devices 74
- Managing Devices 65 75
- 66 Managing Devices 76
- Devices - Reference 77
- Viewing Inventory 78
- Viewing Alerts 78
- Viewing Hardware Logs 78
- Alert Filters 79
- Creating Device Group 80
- Device Selection 81
- Summary - Group Configuration 81
- 72 Devices - Reference 82
- Viewing Inventory Reports 83
- 74 Viewing Inventory Reports 84
- Filtering Report Data 85
- Exporting Reports 85
- 76 Viewing Inventory Reports 86
- Reports - Reference 87
- 78 Reports - Reference 88
- NIC Information 89
- Hard Drives Inventory 89
- PCI Device Information 90
- Storage Controllers 90
- ESX Information 90
- HyperV Information 91
- Warranty Information 91
- Modular Enclosures 92
- Server Overview 93
- 84 Reports - Reference 94
- Viewing Warranty Reports 95
- 86 Viewing Warranty Reports 96
- Viewing Alert Categories 98
- Viewing Alert Source Details 98
- Handling Alerts 99
- Configuring Alert Actions 100
- Managing Alerts 91 101
- Ignoring Alerts 102
- Running a Custom Script 102
- Forwarding Alerts 103
- Use Cases in Alert Actions 104
- Trap Forwarding 105
- Managing Alerts 106
- Alerts - Reference 107
- Alert Logs Fields 108
- Alert Details 109
- Alert Log Settings 110
- Alert View Filters 110
- Severity 111
- Acknowledgement 111
- Summary - Alert View Filter 111
- Alert Actions 112
- Name and Description 113
- Severity Association 113
- 104 Alerts - Reference 114
- E-Mail Configuration 115
- Device Association 116
- Date and Time Range 118
- Summary- Alert Action Details 118
- Alert Categories 120
- Alert Source 121
- 112 Alerts - Reference 122
- Drivers, and Applications 123
- Drivers Sources 124
- Viewing Comparison Results 125
- Applying System Updates 125
- Scheduling Updates 126
- Viewing Active Catalog 127
- System Update - Reference 129
- System Update 130
- Compliant Systems 131
- Non-Compliant Systems 132
- Non-Inventoried Systems 133
- Inventory Systems 133
- All System Update Tasks 133
- Task Execution History 133
- Select a Catalog Source 134
- View Active Catalog 135
- Create an Update Task 135
- 126 System Update - Reference 136
- Managing Remote Tasks 137
- Managing Server Power Options 139
- Administrator on Linux 140
- Use Cases in Remote Tasks 141
- 132 Managing Remote Tasks 142
- Remote Tasks - Reference 143
- All Tasks 144
- Server Power Options 145
- 136 Remote Tasks - Reference 146
- 138 Remote Tasks - Reference 148
- Command Line Task 149
- 140 Remote Tasks - Reference 150
- Generic Command 152
- IPMI Command 154
- RACADM Command Line 156
- 148 Remote Tasks - Reference 158
- Managing Security Settings 159
- Assigning User Privileges 160
- Essentials 161
- Managed Nodes 162
- Troubleshooting 165
- Troubleshooting Procedures 166
- Troubleshooting 157 167
- Troubleshooting 159 169
- Troubleshooting 161 171
- 162 Troubleshooting 172
- Frequently Asked Questions 173
- (continued) 175
- Customization Parameters 176
- MSI Return Code 177
- E-mail Alert Action 178
- Discovery 178
- Inventory 180
- Preferences - Reference 183
- 174 Preferences - Reference 184
- Tools- Reference 185
- Application Logs 186
- Tutorials 187
- 178 Tutorials 188
- Appendix—Right-Click Actions 189
- Device Search 190
- Discovery Range Summary 190
- View Filters 191
- Remote Tasks 191
- Index 183 193
- Index 184 194
- Index 185 195
- 186 Index 196
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