text: Chapter 2
  2-278. The size of the early entry or forward-deployed command post can increase or decrease as necessary
  in response to changes in the operational or mission variables. Large-scale combat operations and campaigns
  or unacceptable network defense challenges may require the division headquarters to deploy most of its
  command and control capabilities. In these cases, the entire headquarters can deploy and establish traditional
  main and tactical command posts in the operational theater.
  2-279. Home station mission command increases data throughput requirements between deployed elements
  and the home station headquarters. Signal planners should consider the network architecture and data
  requirements for reliable connectivity between the separate headquarters. Locally hosting services at each
  end so users can access critical information without relying on reachback mitigates the data throughput
  requirements.
  Deployed Environment
  2-280. The strategic infrastructure supports units’ requirements at their home station, but tactical units still
  need communications and information services when deployed in an operational theater. The deployed
  portion of the DODIN-A provides the needed services and supports tactical mobility requirements.
  2-281. The regional cyber center manages the theater network through technical channels. Deployed tactical
  forces connect to the DODIN-A using satellite transport through a DOD Gateway site, regional hub node, or
  tactical hub node. The tactical portion of the DODIN-A extends DISN voice, data, imagery, and video
  capabilities to deployed forces.
  Home or Mobile Environment
  2-282. Many authorized users operate from outside the boundaries of the Army network. These users access
  the DODIN-A from home or a temporary duty location. These users usually connect with the network through
  the public Internet or a virtual private network connection. Users within the home and mobile environments
  access the DODIN through commercial telecommunications to a joint, Army, or other Service network entry
  point.
  2-283. The security of an enterprise network is only as strong as its weakest point. Secure data, applications,
  and services depend on cybersecurity compliance. Users must maintain current antivirus software and follow
  good security practices. The DODIN-A operational view (Figure 2-3 on page 2-51) shows a high-level
  overview of the DODIN and DODIN-A.