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tcpdump is a data-network packet analyzer computer program that runs under a command line interface. It allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. Distributed under the BSD license, tcpdump is free software.
History & Applications
Explore the main themes, entities and connections around Tcpdump. Start with the topic map, then use the sections below for research and deeper semantic analysis.
Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the full topic structure. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
See the strongest relationship patterns around the current topic before diving into the raw triples.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
systems packets packet user operating network linux privileges uses bsd computer unix-like libpcap android openwrt solaris freebsd netbsd openbsd macos
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Tcpdump | Developer | The Tcpdump team | 1.00 | infobox |
| Tcpdump | License | BSD license | 1.00 | infobox |
| Tcpdump | Operating system | Linux (including Android and embedded distribution such as OpenWrt), Solaris, FreeBSD, NetBSD, OpenBSD, DragonFly BSD, macOS, and additional *NIX systems, Windows, AmigaOS 4 | 1.00 | infobox |
| Tcpdump | Release | 1988 | 1.00 | infobox |
| Tcpdump | Repository | tcpdump on GitHub | 1.00 | infobox |
| Tcpdump | Stable release | 4.99.6 / 30 December 2025; 7 months ago (30 December 2025) | 1.00 | infobox |
| Tcpdump | Type | Packet analyzer | 1.00 | infobox |
| Tcpdump | Website | www.tcpdump.org | 1.00 | infobox |
| Tcpdump | Written in | C | 1.00 | infobox |
| Tcpdump | is a | data-network packet analyzer computer program that runs under a command line interface | 0.90 | text |
| OpenWrt | instance of | including Android and embedded distribution | 0.80 | text |
| Telnet or HTTP passes can use tcpdump to view login IDs | instance of | A user with the necessary privileges on a system acting as a router or gateway through which unencrypted traffic | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.