Try this. Change the ldap host name within ldap_identify-config.xml as follows: <option> | <name>host</name> | <value>${ldap.host:defaultldaphost}</value> | </option> where 'defaultldaphost' is your current ldap host's name. This name will be used if you do not set the ldap.host system property. Then when you want to use the other LDAP host, run JBossAS as follows: run -Dldap.host=otherldaphost where 'otherldaphost' is the name of the other LDAP host. Caveat: the above suggestion is based on the assumption that the ldap configuration file handles system property expansion like the other JBossAS configuration files do; I have not actually tried this. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4177180#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...