[[first-time-setup-16]]

*First-time Setup (1.6) [#xf4e93bd]

This document describes the steps for activating and possibly further configuring Eucalyptus after the software has been installed on all nodes (either from source or using binary packages).

After you've started all components, you will need to perform registration so that they can communicate with each other.

**Registering Eucalyptus Components [#rd89154d]
This section will assume that you have installed all Eucalyptus components and they are up and running. We will assume that your Eucalyptus setup consists of one front end and one or more nodes.

First, you will need to register various front end components. To do this, run the following commands on the front end.

$EUCALYPTUS/usr/sbin/euca_conf --register-walrus <front end IP address>

$EUCALYPTUS/usr/sbin/euca_conf --register-cluster <clustername> <front end IP address>

$EUCALYPTUS/usr/sbin/euca_conf --register-sc <clustername> <front end IP address>

Finally, you need to register nodes with the front end. To do so, run the following command on the front end,

$EUCALYPTUS/usr/sbin/euca_conf --register-nodes "<Node 0 IP address> <Node 1 IP address> ... <Node N IP address>"
where "<Node X IP address>" is the IP address of host X that is running the Node Controller (NC).

At this point, you have successfully registered Eucalyptus components and you are ready to proceed to configuration.

**First-time Configuration [#q74cc530]
Point your browser to,

https://front-end-ip:8443

Since Eucalyptus is using a self-signed certificate, your browser is likely to prompt you to accept the certificate. On some machines it may take few minutes after the starting of the Cloud Controller for the URL to be responsive the first time you run Eucalyptus. You will be prompted for a user and password both of which are set to admin initially.

Upon logging in the first time you will be asked to

change the admin password,
set the admin's email address, and
confirm the IP of the Cloud Controller host.
After clicking 'Submit', you will see the 'Configuration' tab. Since you've used euca_conf to register Walrus and a cluster, they will be listed along with a few configurable parameters. Look over the parameters to see if any need adjustment. For more information, see the Management section.

To use the system with client tools, you must obtain user credentials. From the 'Credentials' tab, Eucalyptus users can obtain two types of credentials: x509 certificates and query interface credentials. Use the 'Download Credentials' button to download a zip-file with both or click on the 'Show Keys' to see the query interface credentials. You will be able to use your credentials with Euca2ools, Amazon EC2 tools and third-party tools like rightscale.com. Create a directory to store your credentials, unpack the zip-file into it, and source the included 'eucarc':

mkdir $HOME/.euca
unzip euca2-admin-x509.zip -d $HOME/.euca
. $HOME/.euca/eucarc
Note that you will have to source this file every time you intend to use the command-line tools, or you may add it to your local default environment.

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