In SEPFL 12.x unmanaged client, we can configure custom proxy settings by modifing /etc/liveupdate.conf.
But in SEPFL 14,0 unmanaged client , there is no such configuration file nor ability to change custom proxy settings via command line etc.
SEPFL 14.0 unmanaged client should have ability to configure custom proxy settings by some way, for example, xxx.conf or command line option.