Juniper VPN in Fedora

Whilst I am not a fan of Juniper Network Connect in the last few years I have had to connect to several networks that use it.  The biggest problem with it is that it is a combination of Java and a 32bit C library which will not work when executed with a 64bit version of Java.
There are other ways of connecting such as the Mad Scientist script but if you use things like two-factor authentication this will not work.  So I brought together things I have learnt from web postings about getting it to work in Ubuntu and have created these steps.  They work in Fedora 17 and should work in 16 too:

Step 1

We need to install OpenJDK Java, we also need xterm for the root password during installation:

sudo yum install java-1.7.0-openjdk.i686 java-1.7.0-openjdk.x86_64 icedtea-web xterm

Step 2

Now we need to tell Java to execute the Juniper binaries in 32bit mode but everything else in 64bit mode, to do this we first rename the 64bit Java binary:

cd /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/
mv java java.orig

Then create a replacement file called “java” with the following:

#!/bin/bash
if [ $3x = "NCx" ]
then
    /usr/lib/jvm/jre-1.7.0-openjdk/bin/java "$@"
else
    /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java.orig "$@"
fi

Finally make this executable:

sudo chmod +x java

Step 3

Log on to your VPN's website as normal, an xterm session will pop up for your sudo password the first time you use this to install it.
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