Without the server you have no central directory so there is no domain. You can use Samba on linux to replicate a lot of the features of a windows AD environment. When you say "network domain", do you ...
This is the second in a multi-part blog series explaining how to set up a JBoss Cluster using httpd 2.4, JBoss mod_cluster, and JBoss AS 7. This article details how to set up JBoss AS7 Domain mode, ...