Managing and Recovering a Remote System
Why are the remote RACADM and Web-based services unavailable after a property change?
It may take a minute for the remote RACADM services and the web interface to become available after
the CMC Web server resets.
The CMC web server is reset after the following occurrences:
• Changing the network configuration or network security properties using the CMC web user
interface.
• The cfgRacTuneHttpsPort property is changed (including when a config -f <config file> changes it).
•racresetcfg is used or a chassis configuration backup is restored.
• CMC is reset.
• A new SSL server certificate is uploaded.
My DNS server doesn’t register my CMC?
Some DNS servers only register names with a maximum of 31 characters.
When accessing the CMC Web interface, a security warning stating that the SSL certificate was issued
by a certificate authority that is not trusted is displayed.
CMC includes a default CMC server certificate to ensure network security for the web interface and
remote RACADM features. This certificate is not issued by a trusted certificate authority. To address this
security concern, upload a CMC server certificate issued by a trusted certificate authority (such as Thawte
or Verisign).
Why is the following message displayed for unknown reasons?
Remote Access: SNMP Authentication Failure
As part of discovery, IT Assistant attempts to verify the device’s get and set community names. In IT
Assistant, the get community name = public and the set community name = private. By default, the
community name for the CMC agent is public. When IT Assistant sends out a set request, the CMC agent
generates the SNMP authentication error because it only accepts requests from community = public.
Change the CMC community name using RACADM. To see the CMC community name, use the following
command:
racadm getconfig -g cfgOobSnmp
To set the CMC community name, use the following command:
racadm config -g cfgOobSnmp -o cfgOobSnmpAgentCommunity <community name>
To prevent SNMP authentication traps from being generated, enter input community names that are
accepted by the agent. Since CMC only allows one community name, enter the same get and set
community name for IT Assistant discovery setup.
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