iftop
iftop is an open source utility that displays bandwidth usage
on an interface by host. iftop does
for network usage what top does for processor usage. This utility
listens to network traffic on a named interface and displays a
table of current bandwidth usage by pairs of hosts.
iftop listens to network traffic on a named interface, or on
the first
interface it can find which looks like an external interface if none is
specified, and displays a table of current bandwidth usage by pairs of
hosts. iftop must be run with sufficient permissions to monitor all
network traffic on the interface.
By default, iftop counts all IP packets that pass through the
filter, and the direction of the packet is determined according to the
direction the packet is moving across the interface.
When running, iftop uses the whole screen to display network
usage. At the top of the display is a logarithmic scale for the bar
graph which gives a visual indication of traffic.
iftop 0.17
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Price
Free to download
Size
0.1MB
License
GNU GPL v2
Developer
Paul Warren, Chris Lightfoot
Website
www.ex-parrot.com
System Requirements
libpcap
libcurses
Support
Sites:
Mailing
List
Selected
Reviews:
Linux
Journal
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Features include:
- View bandwidth usage distinguished by source-ip
source-port destination-ip destination port
- Filters
- Linear bar graphs
- Support for 802.1q VLANs
- Support for "tun" interfaces
- Supports both IPv4 and IPv6
- Optional removal of the shell escape function
- Optional fixed bandwidth limits
- Monitor
and display only specific host interface, host source, IP address, IP
network block, destination host, bandwidth exceed limit, filter rules,
bandwidth rate, bandwidth usage summary, sorting order
- Option to run iftop in promiscuous mode, so that traffic
which does not
pass directly through the specified interface is also counted
- Disable DNS lookups - resolving IPs can reduce performance
of the tool and artifically change the traffic statistics
- Show port data
- Configuration file support
Return
to Console Based Network 'top' Tools Home Page
Last Updated Tuesday, October 02 2012 @ 05:17 PM EDT
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