About Rulesets and Tables

nftables includes rulesets that contain all configuration structures within nftables. Tables are the top level structure in rulesets within which are contained various objects such as chains, rules, and so on.

Managing Rulesets and Tables

To manage nftable rulesets and tables in memory, do the following:

Create a table for a specific address family type using the following syntax:
```
sudo nft add table <address_family> <table_name>
```
In the previous,
- <address_family> can be ip, ip6, inet, arp, bridge, or netdev. All nftables objects are in one of these address families. For more information about these address families, see the nft(8) manual page.
- <table_name> is the name of the table. Tables contain chains, which in turn contain rules.
For example, the following command creates a table called mytable with the inet family, which includes addresses for IP version 4 and 6:
```
sudo nft add table inet mytable
```
Do the following:
- To view all rulesets, do the following:
```
sudo nft list ruleset
```
- To view a single table, do the following:
```
sudo nft list table <address_family> <table_name> 
```