Well today I was needing to see some packages that arrived on apache. In order to see I have to use tcpdump, but you will only some short information if you are using basic.
In order to see HTTP header you have to use something like this:
tcpdump -n -vvvs 1024 -l -A host matrafox.info
If you want to see more information you have to increase the size, something like this
tcpdump -n -vvvs 1500-l -A host matrafox.info
