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https://github.com/x-way/iptables-tracer

Insert trace-points into the running configuration to observe the path of packets through the iptables chains.
https://github.com/x-way/iptables-tracer

golang iptables iptables-tracer netfilter nflog

Last synced: 2 days ago
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Insert trace-points into the running configuration to observe the path of packets through the iptables chains.

Host: GitHub
URL: https://github.com/x-way/iptables-tracer
Owner: x-way
License: mit
Created: 2018-11-04T19:18:56.000Z (about 6 years ago)
Default Branch: master
Last Pushed: 2024-09-10T08:18:58.000Z (3 months ago)
Last Synced: 2024-12-08T20:54:21.951Z (5 days ago)
Topics: golang, iptables, iptables-tracer, netfilter, nflog
Language: Go
Homepage:
Size: 1.15 MB
Stars: 257
Watchers: 6
Forks: 30
Open Issues: 4
Metadata Files:
- Readme: README.md
- License: LICENSE

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README

        # iptables-tracer

[![CircleCI](https://circleci.com/gh/x-way/iptables-tracer/tree/master.svg?style=svg)](https://circleci.com/gh/x-way/iptables-tracer/tree/master)

[![Go Report Card](https://goreportcard.com/badge/github.com/x-way/iptables-tracer)](https://goreportcard.com/report/github.com/x-way/iptables-tracer)

[![Codecov](https://codecov.io/gh/x-way/iptables-tracer/branch/master/graph/badge.svg)](https://codecov.io/gh/x-way/iptables-tracer/)

Insert trace-points into the running configuration to observe the path of packets through the iptables chains.

## Usage

```

$ iptables-tracer -f "-s 192.0.2.1 -p tcp --dport 443" -t 30s

14:42:00.284882 raw    PREROUTING   0x00000000 IP 192.0.2.1.36028 > 203.0.113.41.443: Flags [S], seq 3964691400, win 29200, length 0  [In:eth0 Out:]

14:42:00.287255 mangle PREROUTING   0x00008000 IP 192.0.2.1.36028 > 203.0.113.41.443: Flags [S], seq 3964691400, win 29200, length 0  [In:eth0 Out:]

14:42:00.288966 nat    PREROUTING   0x00008000 IP 192.0.2.1.36028 > 203.0.113.41.443: Flags [S], seq 3964691400, win 29200, length 0  [In:eth0 Out:]

14:42:00.290545 mangle FORWARD      0x00008000 IP 192.0.2.1.36028 > 198.51.100.8.443: Flags [S], seq 3964691400, win 29200, length 0  [In:eth0 Out:eth1]

14:42:00.292123 filter FORWARD      0x00008002 IP 192.0.2.1.36028 > 198.51.100.8.443: Flags [S], seq 3964691400, win 29200, length 0  [In:eth0 Out:eth1]

14:42:00.293164 mangle POSTROUTING  0x00008002 IP 192.0.2.1.36028 > 198.51.100.8.443: Flags [S], seq 3964691400, win 29200, length 0  [In: Out:eth1]

14:42:00.293780 nat    POSTROUTING  0x00008002 IP 192.0.2.1.36028 > 198.51.100.8.443: Flags [S], seq 3964691400, win 29200, length 0  [In: Out:eth1]

```