Users Guide

To ensure that the CSR matches the registered DNS CMC name:
1. In the left pane, click Chassis Overview.
2. Click Network.
The Network Conguration page appears.
3. Select the Register CMC on DNS option.
4. Type a CMC name in the DNS CMC Name eld.
5. Click Apply Changes.
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 conguration or network security properties using the CMC web user interface.
• The cfgRacTuneHttpsPort property is changed (including when a cong -f <cong le> changes it).
• racresetcfg is used or a chassis conguration backup is restored.
• CMC is reset.
• A new SSL server certicate 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 certicate was issued by a certicate
authority that is not trusted is displayed.
CMC includes a default CMC server certicate to ensure network security for the web interface and remote RACADM features. This
certicate is not issued by a trusted certicate authority. To address this security concern, upload a CMC server certicate issued by
a trusted certicate 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.
Active Directory
Does Active Directory support CMC login across multiple trees?
Yes. The CMC’s Active Directory querying algorithm supports multiple trees in a single forest.
Does the login to CMC using Active Directory work in mixed mode (that is, the domain controllers in the forest run dierent
operating systems, such as Microsoft Windows 2000 or Windows Server 2003)?
Yes. In mixed mode, all objects used by the CMC querying process (among user, RAC Device Object, and Association Object) must
be in the same domain.
The Dell-extended Active Directory Users and Computers Snap-In checks the mode and limits users in order to create objects across
domains, if in a mixed mode.
Does using CMC with Active Directory support multiple domain environments?
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