====== Linux Netfilter ======

===== Useful commands =====

**Get list of netfilter tables**

<code>
# nft list tables ip | awk '{ print $3 }'
filter
nat
mangle
raw
</code>

**Get list of netfilter chains**
<code>
# nft list table ip filter | awk '/\tchain/ { print $2 }'
INPUT
FORWARD
OUTPUT
LOCAL-BLOCK-DROP
LOG-ACCEPT
LOG-DROP
BOGUS-DROP
BOGUS
</code>

{{tag>kb linux netfilter firewall}}