Solaris Trusted Extensions Administrator's Procedures

Secure Remote Administration in Trusted Extensions

By default, Trusted Extensions does not allow remote administration. Remote administration would present a significant security risk if users on remote untrusted systems could administer systems that are configured with Trusted Extensions. Therefore, systems are initially installed without the option of being remotely administered.

Until the network is configured, all remote hosts are assigned the admin_low security template. Therefore, the CIPSO protocol is not used or accepted for any connections. While in this initial state, systems are protected from remote attacks by several mechanisms. Mechanisms include netservices settings, default login policy, and PAM policy.

To enable remote login functionality, both systems must assign their peer to a CIPSO security template. If this approach is not practical, the network protocol policy can be relaxed by specifying the allow_unlabeled option in the pam.conf file. If either policy is relaxed, the default network template must be changed so that arbitrary machines cannot access the global zone. The admin_low template should be used sparingly, and the tnrhdb database should be modified so that the wildcard address does not default to the ADMIN_LOW label. For details, see Administering Trusted Extensions Remotely (Task Map) and How to Limit the Hosts That Can Be Contacted on the Trusted Network.