# Iptables

### List Specific Chain:

```
sudo iptables -S TCP
```

### List Rules as Tables

```
sudo iptables -L
sudo iptables -L INPUT
```

### Show Packet Counts and Aggregate Size

```
sudo iptables -L INPUT -v
```

### Delete Rule by Specification

```
sudo iptables -D INPUT -m conntrack --ctstate INVALID -j DROP
```

```
sudo iptables -L --line-numbers
```

### Flush Chains

```
sudo iptables -F INPUT
sudo iptables -F

```

### References:

* <https://www.digitalocean.com/community/tutorials/how-to-list-and-delete-iptables-firewall-rules>