IPWhitelist for 1.12.2?

There is the fork version of it before but have been removed now.
It would be very nice if someone can rewrite it again since I want to prevent people from connect to my server (I use Velocity btw)

You should be doing this using your network or OS firewall rather than an ingane plugin.

The vanilla Minecraft server (and by extension Sponge) already has some whitelist/blacklist controls:

I think Madoka’s actually looking for an IP-based whitelist. Minecraft has player and IP bans, and player whitelists, but not an IP whitelist.

Yes, JBYoshi was right.
I’m try to find solution to replace iptablets since my host isn’t allow to me to limit port (or I mean to port 100% open)