Upgrading JBoss 4 to JBoss 5 with Java 5 to Java 6
The information presented here comes from an effort to upgrade a Java enterprise application to the most current versions of all of its parts; primarily to get onto Java 6. Its starting system specifications were the following:
Problem:
Easily integrating your Linux host into a Windows environment ...
Solution:
This solution allows one to very easily navigate any number of windows/samba servers and shares with any file management application (and from the shell).
Having a digital ISDN telephone connection lets you easily integrate Fax and Answering Machine functionality into your Linux server. SuSE (and Debian) distribute a package called Capisuite for this purpose. You will also need a supported ISDN card (an AVM Fritz card is inexpensive and works).
When system performance on Linux is affected by using too many file descriptors, usually an error can be seen in the log file '(Too many open files)'. Although this affects the entire system, it is a fairly common problem.