ipt-ratelimit : Ratelimit iptables module ( https://github.com/aabc/ipt-ratelimit )
xt_dns : Netfilter extension to match various DNS atributes ( https://github.com/oskar456/xt_dns )
xt_nat : Full Cone NAT module for Linux iptables ( https://github.com/andrsharaev/xt_NAT )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a nest
For Paludis use this rsync : rsync://gentoo.zugaina.org/nest-portage
If you have a problem : ycarus(-at-)zugaina.org