Category: Wireshark tutorials

The article explores why Charles packet capture may fail, focusing on network issues, proxies, and certificate problems, especially with Android devices.

To install imagejs using toolsmanager: Launch the tool manager, update from GitHub, and select the Web Application category. Type install imagejs to proceed.

The CEPH cluster faced issues with PGs stuck in peering due to TCP bugs, resolved by kernel updates. More details at Red Hat…

HttpDNS optimizes domain resolution, bypassing ISP DNS to prevent hijacking and reduce latency, improving access and reliability for Tencent services.

The content delves into BitTorrent protocols, focusing on peer data transmission, including TCP and uTP protocols, congestion control, and the Holepunch extension.

The article continues BitTorrent protocol analysis, detailing data exchanges between peers, incorporating elements like handshake, BitField, and piece request/transfer.

Working on video call issues, tcpdump packet captures showed 10% loss. Turns out the kernel buffer overflowed; adjusting buffer size fixed the issue.

Brother Hong discusses Wireshark’s Main Menu, located at the top of the interface, covering features like file operations, packet management, and display settings.

Data packet transmission involves encapsulation through OSI layers, routing by routers, and encapsulation reversal at the destination. Components include switches, routers, and gateways.

Testing large messages (over 5000 characters) in an MQTT chat server caused connection issues, rendering further messages non-functional due to a decoder error.