where is the NetBeans config file (netbeans.conf) located?

my NetBeans has ugly fonts in interface. I'm going to make antialiasing for it. In internet I saw that there is should be

-J-Dswing.aatext=true -J-Dawt.useSystemAAFontSettings=on

in netbeans_default_options. This file should be located in /etc/netbeans.conf. But there isn't this file. I have NetBeans 6.8. Help, please.

UPD:

[ockonal@wincode ~]$ cd ~/.netbeans/6.8/

[ockonal@wincode 6.8]$ ls

ant build.properties docs lib modules sourcesupdate_tracking bin config
jsstubs lock native update var

UPD2With utilite find I did:

find / -name 'netbeans.conf'

This gave me:

/usr/share/netbeans/etc/netbeans.conf