Bueno, lo he solucionado poniendo la IP pública del equipo.
Sin embargo, al continuar, he obtenido otro mensaje de error:
# ./ConfigurarAuto.sh
=======================================
Comenzando Configuraci???n ...
=======================================
*** 2015-05-05 11:36:24.399 OpenXpertya Log (CLogConsole) ***
11:36:24.379 CLogMgt.setLevel: CONFIG
11:36:24.379 ConfigurationData.load: /ServidorOXP/LibertyaEnv.properties
11:36:24.379 Config.test: OK: JavaHome=/usr/java/jdk1.6.0_45
11:36:24.379 Config.test: OK: Version=1.6.0_45
11:36:24.379 ConfigurationData.testOXP: OK: OXPHome = /ServidorOXP
11:36:24.379 KeyStoreMgt.: /ServidorOXP/keystore/myKeystore
11:36:24.379 KeyStoreMgt.getCertificate: Alias=libertya
11:36:24.379 ConfigurationData.testOXP: OK: KeyStore = /ServidorOXP/keystore/myKeystore
11:36:24.379 Config.test: OK: AppsServer = /((PUBLICIP))
11:36:24.379 Config.test: OK: Deploy Directory = /ServidorOXP/jboss/server/openXpertya/deploy
11:36:24.379 Config.test: OK: JNPPort = 1099
11:36:24.379 Config.test: OK: Web Port = 8080
11:36:24.379 Config.test: OK: SSL Port = 8443
11:36:24.379 Config.test: OK: Database Server = null
Exception in thread "main" java.lang.NullPointerException
at org.openXpertya.install.ConfigPostgreSQL.test(ConfigPostgreSQL.java:112)
at org.openXpertya.install.ConfigurationData.testDatabase(ConfigurationData.java:766)
at org.openXpertya.install.ConfigurationData.test(ConfigurationData.java:703)
at org.openXpertya.install.SilentSetup.(SilentSetup.java:34)
at org.openXpertya.install.SilentSetup.main(SilentSetup.java:77)
*** 2015-05-05 11:36:24.675 OpenXpertya Log (CLogConsole) ***
