nflogger

nflogger

nflogger is a simple tool to dump packets logged via the Linux firewall NFLOG target.

Example usage:

sudo nft add ip filter INPUT log prefix \"filter/INPUT: \" group 100
sudo nflogger --group 100

When you are done press CTRL-C to stop nflogger and remove the rule again. To do this print all rules of the chain INPUT like so.

sudo nft -a list chain filter INPUT

The output from above contains the handle ids of all rules. Lookup the id of your rule and then delete it like so:

sudo nft delete rule filter INPUT handle <id>

License

3-clause BSD

© 2023 Christian Pointner <equinox@spreadspace.org>