Create another_scapy_sniffer_walkthrough.md

programming_and_scripting_for_cybersecurity/recon_scripts/another_scapy_sniffer_walkthrough.md

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+# Simple Scapy Packet Capture
+Here is a Python script that uses the Scapy library to capture a packet:
+
+```
+from scapy.all import *
+
+# Define a callback function
+def packet_callback(packet):
+    print(packet.show())
+
+# Use the sniff() function to capture packets
+sniff(prn=packet_callback, filter="tcp", count=1)
+```
+
+This script uses the `sniff()` function from Scapy to capture packets. The `prn` argument is set to a callback function, `packet_callback`, which is called for each packet captured. The filter argument is set to "tcp" to capture only TCP packets, and the count argument is set to 1 to stop capturing after the first packet is captured. The `show()` function is used to display the packet information.
+
+You can also use `filter` to capture specific IP or port.
+
+```
+sniff(prn=packet_callback, filter="tcp and host 10.1.1.2 and port 80", count=1)
+```
+It's important to note that capturing packets may require root/admin permissions.
+