I am configuring a REDIS server and I want to allow connections only from a set of specific IP addresses.

This is a Debian 10 server, and the recommended framework to use is nft, which I haven't used in the past.

The default ruleset is this:

```
#!/usr/sbin/nft -f

flush ruleset

table inet filter {
        chain input {
                type filter hook input priority 0;
        }
        chain forward {
                type filter hook forward priority 0;
        }
        chain output {
                type filter hook output priority 0;
        }
}

```

What rule do I need to add in that file to allow incoming connections to redis from IP `1.1.1.1` and `2.2.2.2`, dropping everything else? 

REDIS is using port `6379`.