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Wireshark and Linux Firewall Interaction

Wireshark is a network protocol analyzer tool that allows you to capture and analyze network traffic in real-time. Linux firewall is a software component that controls and filters network traffic on a Linux system.

The interaction between Wireshark and Linux Firewall depends on how the firewall is configured. If the firewall is set to block all incoming and outgoing traffic, Wireshark won't capture any network traffic, and you won't see any packets in the Wireshark capture window. In this case, you would need to configure the firewall to allow the traffic you want to capture.

On the other hand, if the firewall is configured to allow traffic, Wireshark can capture and display the traffic that passes through the firewall. This can be useful for troubleshooting network issues or verifying that traffic is being filtered correctly by the firewall.

It's worth noting that Wireshark itself doesn't interact with the firewall directly. Rather, it captures network traffic as it passes through the network interface, regardless of whether the traffic is filtered by the firewall or not. The firewall sits between the network interface and the network stack, so it can filter traffic before it reaches the network stack, but after it's been captured by Wireshark.

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Wireshark and Linux Firewall Interaction