gressgraph - Visualize Your iptables Firewall
gressgraph produces a graph of your iptables ruleset using Graphviz. You can use the graph to:
- Look for vulnerabilities or redundancies.
- Get a “feel” for a network.
- Showcase your firewall.
Try It Out
Enter the output of
iptables -L -vx here.
I’ve deliberately kept the program simple. It has no commandline options.
I haven’t tested gressgraph on many networks. I’m collecting each example that’s submitted through this form to help improve the output for more networks.