netstat
In computing, netstat (network statistics) is a command-line network utility that displays network connections for Transmission Control Protocol (both incoming and outgoing), routing tables, and a number of network interface (network interface controller or software-defined network interface) and network protocol statistics. It is available on Unix, Plan 9, Inferno, and Unix-like operating systems including macOS, Linux, Solaris and BSD. It is also available on IBM OS/2 and on Microsoft Windows NT-based operating systems including Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10.
The netstat command | |
| Developer(s) | Various open-source and commercial developers |
|---|---|
| Initial release | 1983 |
| Written in | Plan 9: C |
| Operating system | Unix, Unix-like, Plan 9, Inferno, OS/2, Microsoft Windows, ReactOS |
| Platform | Cross-platform |
| Type | Command |
| License | OS/2, Windows: Proprietary commercial software net-tools, ReactOS: GPLv2 Plan 9: MIT License |
It is used for finding problems in the network and to determine the amount of traffic on the network as a performance measurement. On Linux this program is mostly obsolete, although still included in many distributions.
On Linux, netstat (part of "net-tools") is superseded by ss (part of iproute2). The replacement for netstat -r is ip route, the replacement for netstat -i is ip -s link, and the replacement for netstat -g is ip maddr, all of which are recommended instead.