Juniper VPN on Archlinux 64 bit.

mainly, follow this:
http://www.rz.uni-karlsruhe.de/~iwr91/juniper/

~/.juniper_networks/network_connect/config/foo.conf

host=vpn.your.host.com

user=your.user.name

realm=view source on the vpn welcome page and search for realm

cafile=/etc/ssl/certs/ca.pem

certfile=

Then, you can do

$ sudo vim /etc/pacman.conf

And, uncomment

[multilib]

Include = /etc/pacman.d/mirrorlist

$ sudo pacman -Sy lib32-glibc lib32-zlib lib32-nss lib32-gcc-libs net-tools

$ jnc --nox foo

$ sudo vim /etc/resolve.conf

And change nameserver order.