<settings>
  .
  .
  <servers>
    <server>
      <id>repo1</id>
      <username>repouser</username>
      <!-- other optional elements:
        <password>my_login_password</password>
        <privateKey>/path/to/identity</privateKey> (default is ~/.ssh/id_dsa)
        <passphrase>my_key_passphrase</passphrase>
      -->
    </server>
  </servers>
  .
  .
</settings>