Go back to your browser and open the URL you want to capture network traffic from.With your interface(s) now selected, click “Start.”.
From the pop-up window, select all available interfaces or just the ones you want to capture.At the top of the screen, click “Capture” and then “Refresh Interfaces” from the drop-down menu.Clear your browser’s cache by pressing “Control + Shift + Delete” and clicking “Clear Data.”.To learn how to capture the traffic you want to analyze on a PC, follow the instructions below. If you haven’t installed Wireshark’s free software on your Windows PC, you can find it here. You can easily capture all network traffic with Wireshark on your PC. Wireshark How to Capture All Network Traffic on a PC But how do you capture all network traffic with this tool? In this article, we’ll show you how to accomplish the task along with some other valuable information. It deeply inspects hundreds of different protocols and runs on both Windows PCs and Macs. You'll have to monitor the veth-a interface.Wireshark is widely-used to inspect what’s happening on your network. (You can also use the MASQUERADE rule if you prefer)įinally, you can run the process you want to analyze in the new namespace, and wireshark too: ip netns exec test thebinarytotest Ifconfig veth-b up 192.168.163.254 netmask 255.255.255.0Ĭonfigure the routing in the test namespace: ip netns exec test route add default gw 192.168.163.254 dev veth-aĪctivate ip_forward and establish a NAT rule to forward the traffic coming in from the namespace you created (you have to adjust the network interface and SNAT ip address): echo 1 > /proc/sys/net/ipv4/ip_forward The setup might seem a bit complex, but once you understand it and become familiar with it, it will ease your work so much.Ĭreate a test network namespace: ip netns add testĬreate a pair of virtual network interfaces (veth-a and veth-b): ip link add veth-a type veth peer name veth-bĬhange the active namespace of the veth-a interface: ip link set veth-a netns testĬonfigure the IP addresses of the virtual interfaces: ip netns exec test ifconfig veth-a up 192.168.163.1 netmask 255.255.255.0
If your kernel allows it, capturing the network traffic of a single process is very easily done by running the said process in an isolated network namespace and using wireshark (or other standard networking tools) in the said namespace as well. I know this thread is a bit old but I think this might help some of you:
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