Peter Johnson [http://community.jboss.org/people/peterj] created the discussion "Re: JBoss base question" To view the discussion, visit: http://community.jboss.org/message/610936#610936 -------------------------------------------------------------- Igor, welcome to the JBoss forums! Which version of JBoss AS do you have? Also what OS are you using? An "instance" is when you have a JVM running JBoss AS. In other words, when you enter "run" on the command line you are starting an instance. What is actually running is the JVM (there will be a java process running in Task Manager or visible using ps). That JVM will be using JAR file found in jboss_home/lib and jboss_home/common/lib (for 5.0 and later) and jboss_home/server/xxx/lib (4.3 and earlier). The 'xxx' is a sudirectory of server and is often referred to as a configuration with the common configurations being "default" and  "all". The 'default' configuration is what is run if you don't specify a configuration on the command line. You might try grabbing the free chapter 1 for JBoss in Action ( http://www.manning.com.jamae http://www.manning.com.jamae), it will give you and introduction into JBoss AS fundamentals. The book is specific to AS 5.x but with a few minor directory changes also applies to 6.0 and 4.x. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/610936#610936] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]