Users Guide

4. To remove the CMC VLAN, disable the VLAN capabilities of the external chassis management

network:

racadm config -g cfgLanNetworking -o

cfgNicVLanEnable 0

You can also remove the CMC VLAN using the following command:

racadm setniccfg -v

Configuring Services

You can configure and enable the following services on CMC:

• CMC Serial console — Enable access to CMC using the serial console.

• Web Server — Enable access to CMC Web interface. If you disable the option, use local RACADM to

re-enable the Web Server, since disabling the Web Server also disables remote RACADM.

• SSH — Enable access to CMC through firmware RACADM.

• Telnet — Enable access to CMC through firmware RACADM

• RACADM — Enable access to CMC using RACADM.

• SNMP — Enable CMC to send SNMP traps for events.

• Remote Syslog — Enable CMC to log events to a remote server.

NOTE: When modifying CMC service port numbers for SSH, Telnet, HTTP, or HTTPS, avoid using

ports commonly used by OS services such as port 111. See Internet Assigned Numbers Authority

(IANA) reserved ports at http://www.iana.org/assignments/service-names-port-numbers/service-

names-port-numbers.xhtml.

CMC includes a Web server that is configured to use the industry-standard SSL security protocol to

accept and transfer encrypted data from and to clients over the Internet. The Web server includes a Dell

self-signed SSL digital certificate (Server ID) and is responsible for accepting and responding to secure

HTTP requests from clients. This service is required by the Web interface and remote RACADM CLI tool

for communicating with CMC.

If the Web server resets, wait at least one minute for the services to become available again. A Web server

reset usually happens as a result of any of the following events:

• Network configuration or network security properties are changed through the CMC Web user

interface or RACADM.

• Web Server port configuration is changed through the Web user interface or RACADM.

• CMC is reset.

• A new SSL server certificate is uploaded.

NOTE: To modify Service settings, you must have Chassis Configuration Administrator privilege.

Remote syslog is an additional log target for CMC. After you configure the remote syslog, each new log

entry generated by CMC is forwarded to the destination(s).

NOTE: Since the network transport for the forwarded log entries is UDP, there is no guaranteed

delivery of log entries, nor is there any feedback to CMC whether the log entries were received

successfully.