Dell servers with an iDRAC card allow for remote management of the server, including a handy remote video console with keyboard and mouse support. This is served to your web browser as a Java app, but it has a couple of small problems.

As noted by a user on the Dell forums, newer Linux distros use evdev instead of kbd for the keyboard driver, and the keycodes don't match the ones expected by the KVM app.

As a result, certain keys won't work, such as SysRq and the arrow keys.

This is a shared library hack to translate evdev keycodes to old style keycodes. You then use it via LD_PRELOAD.

make
make install

This requires no special privileges, as it installs to your homedir (~/local/lib/). A wrapper executable is installed to a bin directory in your $PATH to intercept calls to javaws and perform the LD_PRELOAD hack. You may need to add one yourself (~/bin/ is a reasonable suggestion).

Nothing extra, it should Just Work the next time you launch a remote DRAC console. If not, direct your browser to open the viewer.jnlp file with the executable wrapper.

If you want to make use of magic SysReq, make sure that it is disabled on your local workstation, lest you get a bit of a surprise...

cat /proc/sys/kernel/sysrq and set it to 0 if it's not already.

A large set of keysyms were merged into the mapping in commit c3f916c. If you find the hack isn't working as expected, you may need to revert to an earlier commit, possibly 8f11599. The functionality is dependent on both the local system and the app served up by the iDRAC, so it's hard to provide definite predictions. Good luck!