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# Overview

The complete process of installing Software ArcMC includes these steps.

## Select an Installation Mode

Select a mode in which to install Software ArcMC on your selected host. You should plan to install as the root user. In addition, during the installation process, ArcMC will prompt you for a user name, under which the application will be started.

You can install Software ArcMC in these modes:

- GUI: In GUI mode, a wizard steps you through the installation and configuration process. For detailed instructions, see GUI Mode Installation.

  Note: If you are using a Windows system to connect to the host where Software ArcSight Management Center is to be installed, and prefer to install in GUI mode, you must connect using an X Window client, such as Xming for Windows.

- Console: In Console mode, a command-line process steps you through the installation and configuration process. See Console Mode Installation for detailed instructions.

- Silent: In Silent mode, the installation process is scripted. There is no need to interact with the installer, as you provide the installation and configuration input through a file. See Silent Mode Installation for detailed instructions.

## Applying your License

A valid license is required for Software ArcMC. A license file is uniquely generated for each instance of a product; therefore, you cannot use the same license file to install multiple instances of the product.

To obtain your license, follow the instructions in the Electronic Delivery Receipt email received from ArcSight after placing your order.

You will be prompted to install a license during the installation of ArcMC. If no license is provided, an "Instant-On" license will be applied by default. The Instant-On license is valid for 30 days. During this time, you should obtain and apply the correct license from the Software Entitlement portal.

## Start as a Service

If installation was performed as a root user, Software ArcMC can be configured to start as a system service. For more information, see Enabling/Disabling ArcMC as a System Service

## Make Host Resolvable

For the Apache web process to start, the Software ArcMC hostname must be resolvable. Add the hostname to either `/etc/hosts` or DNS.

## Secure Your Credentials

After initial setup is complete, connect to the application and change the default password to a secure password. To change the default password, follow the instructions in Users/Groups on ArcMC.

Optionally, for additional security, rename the default admin username to a secure name. To change a username, follow the instructions in User Management .

## Install the ArcMC Agent (If Required)

Additionally, if you plan to manage one or more ArcMCs, Connector Appliances, or Loggers, you will need to install the ArcMC Agent on each. For more information on manual ArcMC Agent installation, see Installing the ArcMC Agent

## Open Firewall Ports

Open any required ports on your firewall for best functionality. For a list of required open ports, see Configuring Firewall Rules

## Create an Account on the ArcSight Marketplace

The ArcSight Marketplace is an app store that enables rapid provisioning of your ArcSight SIEM deployment with content updates, trusted security content packages, and best practices.

ArcSight Management Center requires a global administrative account with the ArcSight Marketplace in order to download and perform some content updates. Browse the ArcSight Marketplace to set up your administrative account.