How to install Wireshark on OpenBSD

Wireshark is a popular network protocol analyzer that can be used to capture and analyze network packets. In this tutorial, we will learn how to install Wireshark on OpenBSD.

Prerequisites

Before installing Wireshark on OpenBSD, you must have access to an OpenBSD system with superuser privileges.

Step 1: Update Package Repository

The first step is to update the OpenBSD package repository by running the following command:

pkg_add -u

This will update the package repository to the latest version.

Step 2: Install Wireshark

To install Wireshark, run the following command:

pkg_add wireshark

This will download and install the latest version of Wireshark on your OpenBSD system.

Step 3: Configure Wireshark

By default, Wireshark will not run as a regular user. Therefore, you need to give the user permission to capture packets.

To configure Wireshark to run as a regular user, run the following command:

sudo chown root:wireshark /usr/local/bin/dumpcap
sudo chmod 4755 /usr/local/bin/dumpcap

This will change the ownership of the dumpcap binary to root:wireshark and set the SUID bit on it. This will allow regular users to capture packets.

Step 4: Launch Wireshark

To launch Wireshark, run the following command:

wireshark

This will launch Wireshark GUI. You can use the GUI to capture and analyze network traffic.

Step 5: Capture Packets

To capture packets, select the interface you want to capture packets from and click on the "Start" button. Wireshark will start capturing packets on the selected interface.

Conclusion

In this tutorial, we learned how to install Wireshark on OpenBSD. We also learned how to configure Wireshark to run as a regular user and how to capture packets using Wireshark GUI.