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# Connecting to the ArcMC User Interface

Use this URL to connect to ArcMC:

    https://<hostname or IP address >:<configured_port>

where `hostname` or `IP address` is the system on which you installed ArcMC. If ArcMC was installed as root and the default port was used, then <configured_port> is optional.

To login for the first time, use the following default credentials:

    Username: admin
    Password: password

For security, change the default credentials immediately after you log in for the first time. For more information on changing credentials, see User Management .