Developpement/23SCR/SCR014/SCR014.txt

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2024-12-09 11:53:11 +01:00
I/
1) ncat -ul 50000
2)
ss ul
tcpdump -i lo "udp and port 50000"
3)
dd if=/dev/urandom of=ft-file.dat bs=1024 count=9
ncat -u localhost 50000 < ft-file.dat
ex 1:
ncat -l 60000
ss -lt
4)
5)
6)
7)
II/
1)
which traceroute
which tracepath
2)
tcpdump -vvv -i eno1 -f "host 172.16.2.102 and ip and not tcp and not udp"
tcpdump -vvv -i eno1 -f "host 172.16.2.102 and ip and not tcp and not udp" -w tracepath.txt
tracepath 1.1.1.1
tcpdump -r tracepath.txt
tcpdump -v -r tracepath.txt
3)
-n permet de mettre les gateway en ip
tracepath -n 8.8.8.8
1?: [LOCALHOST] pmtu 1500
1: 172.16.1.254 0.543ms
1: 172.16.1.254 0.614ms
2: 37.58.131.238 1.377ms
3: 100.65.0.27 2.600ms
4: 100.64.96.159 3.536ms
5: no reply
6: no reply
7: no reply
8: no reply
9: no reply
10: no reply
11: no reply
4)
a/tcpdump -v -r tracepath.txt | sed '/proto ICMP/i \\'
b/
c/
d/