Iftop

Short description: Real-time bandwidth usage software

iftop

Developer(s)| Paul Warren
Initial release| March 2, 2002; 21 years ago (2002-03-02)[1]
Stable release|

0.17

Repository| https://code.blinkace.com/pdw/iftop
Written in| C
Operating system| Unix-like
Type| Bandwidth usage / System monitor
License| GNU General Public License
Website| www.ex-parrot.com/pdw/iftop/

Iftop is a free software command-line system monitor tool developed by Paul Warren. It produces a real-time stream of incoming and outgoing network communications from the operating system iftop is running within.[2] By default, the connections are ordered by bandwidth usage, with only the largest ("top") bandwidth consumers shown. It is analogous to top, but instead of system-wide resource monitoring, it focuses on displaying just network usage. Iftop is typically used for monitoring bandwidth consumption, and while investigating unknown consumers of available network bandwidth.

## Contents

* 1 Description
* 2 See also
* 3 References
* 4 External links

## Description

iftop monitors network traffic and displays a table of current bandwidth usage. An interface may be specified' if not, it will listen on the first interface it finds that appears to be external.

By default, iftop will look up hostnames associated with addresses and counts all IP packets that pass through the filter.

A feature of iftop is that it can suppress display of DNS traffic by using a filter code such as "not port domain", or switch it off entirely, by using the `-n` option or by pressing "n" when the program is running. Using the `-F` option makes it possible to show packets entering and leaving a given network.

## See also

* Linux/UNIX system performance commands
* htop
* netsniff-ng's ifpps top-like statistics tool
* ntop
* MTR
* List of Unix commands

## References

1. ↑ https://code.blinkace.com/pdw/iftop/raw/master/ChangeLog [bare URL plain text file]
2. ↑ "Topnet: A Network-Aware top(1)". http://static.usenix.org/event/lisa08/tech/full_papers/theocharides/theocharides_html/.

## External links

* v
* t
* e

Unix command-line interface programs and shell builtins

File system|

* cat
* chmod
* chown
* chgrp
* cksum
* cmp
* cp
* dd
* du
* df
* file
* fuser
* ln
* ls
* mkdir
* mv
* pax
* pwd
* rm
* rmdir
* split
* tee
* touch
* type
* umask

Processes|

* at
* bg
* crontab
* fg
* kill
* nice
* ps
* time

User environment|

* env
* exit
* logname
* mesg
* talk
* tput
* uname
* who
* write

Text processing|

* awk
* basename
* comm
* csplit
* cut
* diff
* dirname
* ed
* ex
* fold
* head
* iconv
* join
* m4
* more
* nl
* paste
* patch
* printf
* sed
* sort
* strings
* tail
* tr
* uniq
* vi
* wc
* xargs

Shell builtins|

* alias
* cd
* echo
* test
* unset
* wait

Searching|

* find
* grep

Documentation|

* man

Software development|

* ar
* ctags
* lex
* make
* nm
* strip
* yacc

Miscellaneous|

* bc
* cal
* expr
* lp
* od
* sleep
* true and false

* Categories
* Standard Unix programs
* Unix SUS2008 utilities
* List

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Iftop. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Software:Iftop&oldid=3461891"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template