Wireshark for Beginners – How to Analyse Network Traffic (2026)
Capture, filter, and analyse network traffic with Wireshark — troubleshoot connectivity issues, detect malicious activity, and understand your network from the ground up.
▶ WHAT YOU'LL LEARN
• Installing Wireshark and capturing first packets
• Essential display filters (ip.addr, tcp.port, dns, http)
• Analysing DNS, DHCP, and ARP traffic
• Finding slow connections and TCP retransmits
• Detecting ARP poisoning and suspicious traffic
• Following TCP streams to read HTTP conversations
🔧 SOFTWARE (FREE)
• Wireshark: https://www.wireshark.org/download.html
• Nmap (for test traffic): https://nmap.org
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