Name
netstat
Synopsis
netstat [options]TCP/IP command. Show network status. Print information on active sockets, routing tables, interfaces, masquerade connections, or multicast memberships. By default, netstat lists open sockets.
Options
The first five options( -g, -i, -r, -s, and -M) determine what kind of information netstat should display.
- -g, --groups
Show multicast group memberships.
- -i, --interface[= name]
Show all network interfaces, or just the interface specified by name.
- -r, --route
Show kernel routing tables.
- -s, --statistics
Show statistics for each protocol.
- -M, --masquerade
Show masqueraded connections.
- -a, --all
Show all entries.
- -c, --continuous
Display information continuously, refreshing once every second.
- -e, --extend
Increase level of detail in reports. Use twice for maximum detail.
- -l, --listening
Show only listening sockets.
- -n, --numeric
Show network addresses, ports, and users as numbers.
- --numeric-hosts
Show host addresses as numbers, but resolve others.
- --numeric-ports
Show ports as numbers, but resolve others.
- --numeric-users
Show user ID numbers for users, but resolve others.
- -o, --timers
Include information on network timers.
- -p, --program
Show the process ID and name of the program owning the socket.
- --protocol= family
Show connections only for the specified address family. Accepted values are inet, unix, ipx, ax25, netrom, and ddp.
- -t, --tcp
Limit report to information on TCP sockets.
- -u, --udp
Limit report to information on UDP sockets.
- -v, --verbose ...
Get Linux in a Nutshell, Fourth Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
