5.1 HCN Administrative and AGPI servers The Administrative server and the AGPI server are both J2EETM applications that run under IBM WebSphere Application Server. The standard deployment calls for both the Administrative server and the AGPI server to be installed on the same WebSphere Application Server instance, although, as we have discussed, this is not strictly necessary. General techniques for managing and troubleshooting WebSphere Application Server apply to these HCN components. An excellent resource for system administration on WebSphere Application Server V5 is IBM WebSphere Application Server V5.1 System Management and Configuration WebSphere Handbook Series, which is available at: http://www.redbooks.ibm.com/abstracts/sg246195.html?Open 5.1.1 Log files Log files are usually the first place to look for debugging and troubleshooting information about applications that are based in WebSphere Application Server. In addition to the standard WebSphere Application Server logs, HCN produces installation logs which can be used to troubleshoot installation problems. You can find the installation logs for the Administrative Server and the AGPI