Here’s how to run Cisco’s ASDM client in Linux:
First, verify that you have a compatible version of java:
java -version
Next, navigate to the URL of the ASA/Pix, select “Run ASDM” and save the file to you computer.
Finally, open a terminal window, navigate to where you downloaded the ASDM launcher and run this command:
javaws asdm.jnlp