# Installing the Packages for tcpdump and netcat with tdnf The minimal version of Photon OS leaves out several useful networking tools to keep the operating system lean. Tcpdump is not available in the minimal version but available in the repository. The minimal version includes the iproute2 tools by default. Tcpdump captures and analyzes packets on a network interface. On Photon OS, you install `tcpdump` and its accompanying package `libpcap`, a C/C++ library for capturing network traffic, by using `tdnf`: tdnf install tcpdump Netcat, a tool for sending data over network connections with TCP or UDP, appears in neither the minimal nor the full version of Photon OS. But since netcat furnishes powerful options for analyzing, troubleshooting, and debugging network connections, you might want to install it. To do so, run the following command: tdnf install netcat