Installing Wireshark on CentOS 7

Wireshark is a popular network protocol analyzer that allows you to capture and analyze network packets. It is a powerful tool for troubleshooting and analyzing network issues. Here are the steps to install Wireshark on CentOS 7:

1. Open a terminal or SSH into your CentOS 7 server.
2. Update the system packages by running the following command:
   sudo yum update
3. Install the required dependencies by running the following command:
   sudo yum install -y gcc gtk3-devel qt5-devel libpcap-devel qt5-qtbase-devel qt5-qtmultimedia-devel qt5-linguist
4. Download the Wireshark source code by running the following command:
   wget https://1.as.dl.wireshark.org/src/wireshark-3.4.3.tar.xz
5. Extract the downloaded tarball by running the following command:
   tar -xvf wireshark-3.4.3.tar.xz
6. Change the directory to the extracted folder:
   cd wireshark-3.4.3
7. Configure the source code by running the following command:
   ./configure --with-qt
8. Build Wireshark by running the following command:
   make
9. Install Wireshark by running the following command:
   sudo make install
10. Add the wireshark group and add your user to that group by running the following commands:
    sudo groupadd wireshark
sudo usermod -a -G wireshark [your_username]
11. Set the group ownership for Wireshark files by running the following command:
    sudo chgrp wireshark /usr/local/bin/dumpcap
12. Set the permissions on Wireshark files by running the following command:
    sudo chmod 750 /usr/local/bin/dumpcap
13. Logout and log back in to apply the group changes.
14. You can now start Wireshark by running the following command:
    wireshark

Wireshark should now be installed on your CentOS 7 server. You can launch it from the command line or from the applications menu. Enjoy capturing and analyzing network packets!