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Please note that iptables works from top to bottom.
At first match it executes the target and exits (except for few "special" targets).
You were clearly trying to insert a rule at the 5th position, so I wondered what were before and after that 5th rule.
Then your stack seemed to only have the default policy to accept everything.
That is really confusing.
Are you sure that you posted the results from a consistent stage?
Maybe you mixed while trying different things.
Please note that iptables works from top to bottom.
At first match it executes the target and exits (except for few "special" targets).
You were clearly trying to insert a rule at the 5th position, so I wondered what were before and after that 5th rule.
Then your stack seemed to only have the default policy to accept everything.
That is really confusing.
Are you sure that you posted the results from a consistent stage?
Maybe you mixed while trying different things.
Ah, You right. I added "-I INPUT 1". Excuse me, Is it mean line?
tcpdump can capture the raw packets, so there's probably way. But only IF you were recording the traffic at the time. Or some iptables mechanism to record the packets that were rejected/logged. Then again encryption is a thing now, so you'd have to know the key(s) and the data to translate. Or have tools that knows those things for you. wireshark? idk, not my wheel house.
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