Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 Manual de usuario descargar pdf (Pagina 171)

Console Operating System and VMkernel

171

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Characteristics of the VMware Console

Operating System

The purpose of the VMware Console Operating System is to start up and administer

your virtual machines. It is a customized version of Linux based on the Red Hat 7.2

distribution. It has been modified so it can be managed by the VMkernel.

The console operating system has been customized to disable unneeded services. In

particular, most network services have been disabled, except for auth. For remote

access to the console operating system, ssh is enabled by default. The root user can

modify settings for ssh, Telnet and FTP using the security configuration page in the

management interface (http://<servername>/security-config).

The console operating system is scheduled by the VMkernel just as any other virtual

machine is. You should not attempt to run heavy workloads on the console operating

system, because it takes processor cycles away from your virtual machines.

You should also avoid running X on the console operating system. However, if you do

choose to run X and the GNOME desktop, remember to disable any GNOME

applications that automount the CD-ROM, such as magicdev. Otherwise the CD-

ROM is not available to the guest operating systems. You can either use the command

killall magicdev or edit .gnome/magicdev and add the following line:

do_automount=false, do_cd_play=false

RPM installers for the Netscape Communicator 4.78 and Mozilla Web browsers are

included on the ESX Server CD-ROM. However, these browsers are not installed by

default.

Using DHCP for the Console Operating System

The recommended setup is to use static IP addresses for the console operating

system. It is also possible to set up the console operating system to use DHCP, so long

as your DNS server is capable of mapping the console operating system’s host name

to the dynamically-generated IP address.

If your DNS server cannot map the host’s name to its DHCP-generated IP address,

which may be the case, you must determine the console operating system's numeric

IP address yourself and use that numeric address when accessing the management

interface’s Web pages.

Keep in mind that the numeric IP address may change as DHCP leases run out or

when the system is rebooted. For this reason, we do not recommend using DHCP for

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Red Hat NETSCAPE MANAGEMENT SYSTEM 4.5 Manual de usuario Pagina 171