Linux Tips: TCPDUMP How To Capture & Monitor Network Traffic #linux #kali #shorts #linuxtips

Learn how to use tcpdump on Linux to capture and analyze network packets like a real network engineer! 🚀 In this short, we’ll install tcpdump, capture live traffic, filter by port, protocol, and IP, and understand every option line by line. Perfect for CCNA, Network+, and cybersecurity students. 🧠💻

⚙️ Setup (Before Using tcpdump)
sudo apt update && sudo apt install tcpdump -y # Debian/Ubuntu
sudo yum install tcpdump -y # CentOS/RHEL
sudo dnf install tcpdump -y # Fedora

💡 Common tcpdump Commands (Explained Line by Line)
sudo tcpdump # Capture packets on default interface (usually eth0)
sudo tcpdump -i eth0 # Capture on specific interface
sudo tcpdump -D # List all available interfaces
sudo tcpdump -n # Don’t resolve IPs to hostnames (faster output)
sudo tcpdump -v # Verbose mode (show more packet info)
sudo tcpdump -vvv # Extra-verbose (deep packet details)
sudo tcpdump -c 10 # Capture only 10 packets then stop
sudo tcpdump port 80 # Capture HTTP traffic (port 80)
sudo tcpdump src 192.168.1.10 # Capture packets *from* a specific IP
sudo tcpdump dst 192.168.1.20 # Capture packets *to* a specific IP
sudo tcpdump tcp # Capture only TCP packets
sudo tcpdump udp # Capture only UDP packets
sudo tcpdump -w capture.pcap # Save packets to a file (for Wireshark)
sudo tcpdump -r capture.pcap # Read and analyze saved capture
sudo tcpdump -i eth0 'port 22 and tcp' # Capture SSH TCP packets on port 22
sudo tcpdump -i any # Capture from all network interfaces
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Видео Linux Tips: TCPDUMP How To Capture & Monitor Network Traffic #linux #kali #shorts #linuxtips канала CoreSah Networks