Internal Port Scanning
Using ss
-t
: Shows TCP connections.-u
: Shows UDP connections.-l
: Shows only listening sockets.-n
: Shows numerical addresses instead of resolving them.
Using nc
z : for scan
v: verbose
w: timeout to 1 second
1-10000 port range
Using a loop to scan from port 1 till 65535
using nc -z
Check inside /dev/tcp
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