6.5.1
Table Of Contents
- vCenter Server Appliance Configuration
- Contents
- About vCenter Server Appliance Configuration
- Updated Information
- vCenter Server Appliance Overview
- Using the Appliance Management Interface to Configure the vCenter Server Appliance
- Log In to the vCenter Server Appliance Management Interface
- View the vCenter Server Appliance Health Status
- Reboot or Shut Down the vCenter Server Appliance
- Export a Support Bundle
- Enable or Disable SSH and Bash Shell Access
- Configure the DNS, IP Address, and Proxy Settings
- Configure the System Time Zone and Time Synchronization Settings
- Change the Password and Password Expiration Settings of the Root User
- Redirect vCenter Server Appliance Log Files to Another Machine
- Monitor Network Use
- Monitor CPU and Memory Use
- Monitor Database Use
- Using the vSphere Web Client to Configure the vCenter Server Appliance
- Join the vCenter Server Appliance to an Active Directory Domain
- Leave an Active Directory Domain
- Add a User to the SystemConfiguration.BashShellAdministrators Group
- Edit Access Settings to the vCenter Server Appliance
- Edit the DNS and IP Address Settings of the vCenter Server Appliance
- Edit the Firewall Settings of the vCenter Server Appliance
- Edit the Startup Settings of a Service
- Start, Stop, or Restart Services in the vCenter Server Appliance
- View the Health Status of Services and Nodes
- Edit the Settings of Services
- Export a Support Bundle
- Using the Appliance Shell to Configure the vCenter Server Appliance
- Access the Appliance Shell
- Enable and Access the Bash Shell from the Appliance Shell
- Keyboard Shortcuts for Editing Commands
- Get Help About the Plug-Ins and API Commands in the Appliance
- Plug-Ins in the vCenter Server Appliance Shell
- Browse the Log Files By Using the showlog Plug-In
- API Commands in the vCenter Server Appliance Shell
- Configuring SNMP for the vCenter Server Appliance
- Configuring Time Synchronization Settings in the vCenter Server Appliance
- Managing Local User Accounts in the vCenter Server Appliance
- User Roles in the vCenter Server Appliance
- Get a List of the Local User Accounts in the vCenter Server Appliance
- Create a Local User Account in the vCenter Server Appliance
- Update the Password of a Local User in the vCenter Server Appliance
- Update a Local User Account in the vCenter Server Appliance
- Delete a Local User Account in the vCenter Server Appliance
- Monitor Health Status and Statistics in the vCenter Server Appliance
- Using the vimtop Plug-In to Monitor the Resource Use of Services
- Using the Direct Console User Interface to Configure the vCenter Server Appliance
- Log In to the Direct Console User Interface
- Change the Password of the Root User
- Configure the Management Network of the vCenter Server Appliance
- Restart the Management Network of the vCenter Server Appliance
- Enable Access to the Appliance Bash Shell
- Access the Appliance Bash Shell for Troubleshooting
- Export a vCenter Server Support Bundle for Troubleshooting
- Index
Configuring Time Synchronization Settings in the
vCenter Server Appliance
You can change the time synchronization seings in the vCenter Server Appliance after deployment.
When you deploy the vCenter Server Appliance, you can choose the time synchronization method to be
either by using an NTP server or by using VMware Tools. In case the time seings in your vSphere network
change, you can edit the vCenter Server Appliance and congure the time synchronization seings by using
the commands in the appliance shell.
When you enable periodic time synchronization, VMware Tools sets the time of the guest operating system
to be the same as the time of the host.
After time synchronization occurs, VMware Tools checks once every minute to determine whether the
clocks on the guest operating system and the host still match. If not, the clock on the guest operating system
is synchronized to match the clock on the host.
Native time synchronization software, such as Network Time Protocol (NTP), is typically more accurate
than VMware Tools periodic time synchronization and is therefore preferred. You can use only one form of
periodic time synchronization in the vCenter Server Appliance. If you decide to use native time
synchronization software, vCenter Server Appliance VMware Tools periodic time synchronization is
disabled, and the reverse.
Use VMware Tools Time Synchronization
You can set up the vCenter Server Appliance to use VMware Tools time synchronization.
Procedure
1 Access the appliance shell and log in as a user who has the administrator or super administrator role.
The default user with super administrator role is root.
2 Run the command to enable VMware Tools time synchronization.
timesync.set --mode host
3 (Optional) Run the command to verify that you successfully applied the VMware Tools time
synchronization.
timesync.get
The command returns that the time synchronization is in host mode.
The time of the appliance is synchronized with the time of the ESXi host.
Add or Replace NTP Servers in the vCenter Server Appliance Configuration
To set up the vCenter Server Appliance to use NTP-based time synchronization, you must add the NTP
servers to the vCenter Server Appliance conguration.
Procedure
1 Access the appliance shell and log in as a user who has the administrator or super administrator role.
The default user with super administrator role is root.
2 Add NTP servers to the vCenter Server Appliance conguration by running the ntp.server.add
command.
For example, run the following command:
ntp.server.add --servers IP-addresses-or-host-names
vCenter Server Appliance Configuration
48 VMware, Inc.