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22 Connecting to a remote console
This chapter addresses the following topics:
• “Console management facility overview” (page 201)
• “How CMF works” (page 201)
• “Accessing a remote console” (page 201)
• “Serial connections on DL100 series servers” (page 202)
• “Enabling telnet access to iLO management processors” (page 203)
22.1 Console management facility overview
The Console Management Facility (CMF) daemon, cmfd, collects and stores console output for
all managed systems. This information is stored individually for every managed system and is
backed up periodically. This information is stored under dated directories in the
/hptc_cluster/adm/logs/cmf.dated/current directory.
The console command enables you to open a console session to a managed system.
22.2 How CMF works
NOTE: Servers configured for serial console logging have a text-only console on their graphics
monitor. There might not be a X windows based graphical console.
Each managed system has two serial ports:
• An embedded serial port, which is a physical serial port to which you might connect a serial
terminal
• A virtual serial port that can be accessed through the managed system's management
processor over the network
To the OS, both ports appear as any other serial port.
When CMF starts up on the CMS, it opens a network connection to the virtual serial port on each
of the Insight Control for Linux managed systems and starts to capture the data that comes over
the link. By properly configuring the managed systems to use their virtual serial port as the
system console, the CMS can maintain a direct connection to each managed system's serial
console.
Thus, for console monitoring to work, the OS must know which serial port to use as the console
on each managed system, and that serial port must be associated with the virtual serial port of
the server.
22.3 Accessing a remote console
When you access a system console remotely you can monitor the managed system to correct
problems from a remote location. The information in this section describes how to establish a
connection with the system console.
To establish a remote connection, follow these steps:
1. Log in to the CMS or any management hub using the In this example, mercury.example.com
is the fully qualified host name.
# ssh -l login-name mercury.example.com login-name
@mercury's password: password
$
You can find which servers are management hubs by examining the
icelx_Management_Hubs subcollection.
22.1 Console management facility overview 201
- HP Part Number: 483100-006 1
- Published: October 2010 1
- Edition: 6 1
- Table of Contents 3
- 4 Table of Contents 4
- Table of Contents 5 5
- 6 Table of Contents 6
- Table of Contents 7 7
- 8 Table of Contents 8
- Table of Contents 9 9
- 10 Table of Contents 10
- Part I Introduction 11
- 1.1 Overview 13
- # man command_name 18
- 1.10 Virtual media 19
- 1.11 Managed system names 20
- 1.11 Managed system names 21 21
- 1.12 Connecting to HP SIM 22
- 2 Security 25
- 26 Security 26
- 2.2 Validating RPM signatures 27
- 2.3 Trusted certificates 27
- 28 Security 28
- 3 Managing licenses 29
- 3.3 Licensing virtual guests 30
- 4.1 Task results overview 31
- 4.3 Task results page 31
- Figure 4-1 Task results page 32
- 4.4 Common task results 33
- 4.4.1.1 Stopping a task 34
- 4.4.3 Operation details log 35
- 4.5.2 Target details table 39
- 4.6.1 Operations table 41
- 4.6.2 Operation controls 42
- Part II Deployment 45
- Requirements 48
- 5.1.2 Repository contents 49
- 5.2.1 Registration overview 50
- 5.2.3 Registering PSPs 53
- Item Name: MyConfig 55
- # mkdir CD1 58
- # mkdir CD2 58
- # mkdir CD3 58
- # mkdir CD4 58
- Copying a PSP from the CMS 60
- Downloading a PSP 60
- 6.1 Introduction 63
- 192.168.10.5-192.168.10.50 69
- 6.5 Next Step 73
- 7.1 Discovering systems 75
- 7.1 Discovering systems 77 77
- # /sbin/hpsnmpconfig 78
- 7.4 Changing the boot method 80
- 7.5 Next steps 81
- 8 Setting up managed systems 83
- # /bin/hostname 85
- # mxgethostname -n venus 85
- Host name: venus.example.com 85
- DNS Name: venus.example.com 85
- 3. Select Next> 86
- 88 Setting up managed systems 88
- 8.4 Next steps 90
- /^[Space-TAB]*kernel 96
- Listen 80 100
- # /etc/init.d/httpd restart 100
- # /opt/mx/bin/mxstop 100
- # /opt/mx/bin/mxstart 100
- # cd /opt/repository/iso 105
- # rm -f GUID_number*.iso 105
- GUID: GUID_number 105
- 10.1.1 File system types 110
- For Enclosures 116
- For Switches 116
- Switch1=n1 n3 n4 n5] 118
- 11.1 Installing virtual hosts 125
- ksdevice=eth1 128
- # ping virtual_guest_name 131
- # cd /tmp 133
- # vi osver-virt-guest.cfg 133
- 11.6 Virtual guest operations 134
- 12.2.1 Initial setup 138
- HPSUM_FLAGS=parameters 139
- HPSUM_FLAGS=--downgrade 139
- 13.2 Required PSP components 143
- 14 ISO control operations 147
- 15 Remote server controls 149
- 16.4.1 Running an SSH command 153
- 16.4.2 Running a Linux script 153
- Part III Monitoring 155
- 17.2 Populating a collection 158
- Linux collection 160
- 18 Setting up management hubs 161
- 19.1 Overview of monitoring 165
- PermitRootLogin yes 166
- # /etc/init.d sshd restart 166
- # pdsh -a uptime 167
- If Warnings Are Reported 168
- 20.2 Nagios overview 172
- 20.2.1 Nagios documentation 173
- 20.2.2 Launching Nagios 174
- 20.3 Using Nagios 175
- 20.3 Using Nagios 177 177
- 20.3 Using Nagios 179 179
- # nrg --mode analyze 180
- 20.3 Using Nagios 181 181
- SENSORPRINT0 = CPU[0-9]+ TEMP 193
- SENSORPRINT1 = SYS TEMP 193
- SENSORPRINT2 = Temp[1-9]+ 193
- FULLSENSORLISTING = 1 193
- # shownode info 195
- # shownode virtual 196
- # shownode metrics paging 197
- 21.2.4.3 Displaying memory 198
- 22.2 How CMF works 201
- # service cmfd restart 203
- Part IV Other topics 205
- 23 Miscellaneous topics 207
- DISCOVERY_MAX_AT_ONCE=servers 208
- # rm /root/.ssh/icelx_* 208
- 23.7 Event logging overview 209
- # cd /opt/hptc/syslog-ng/etc 210
- 23.9.1 Configuring SNMP 211
- 212 Miscellaneous topics 212
- 24 Advanced topics 213
- 214 Advanced topics 214
- Agents task 215
- 216 Advanced topics 216
- 25 Troubleshooting 219
- 25.2 Alternative booting 220
- 25.14 Nagios Troubleshooting 238
- # ps auxww 242
- # service snmpd status 252
- # /bin/ps 254
- 25.22 Troubleshooting SSH 255
- 26.1 Contacting HP 261
- 26.1.5 Documentation feedback 262
- 26.3 Related information 263
- 26.3.2 Websites 264
- 26.3 Related information 265 265
- 26.4 Typographic conventions 266
- A Customizing Nagios 267
- # /etc/init.d/nagios restart 272
- # /etc/init.d/nagios stop 274
- # /etc/init.d/nagios start 274
- Glossary 275
- 276 Glossary 276
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