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195 discussions

0.15pre4
by Paul Warren 07 Nov '03

07 Nov '03

The latest and greatest pre-release for the ever forthcoming 0.15 release is now available from: http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.15pre4.tar.gz Only really bug-fixes and added documentation since the last pre-release. I do not intend to make any further changes before 0.15, so please let me know if it is broken. Paul

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Iftop 0.14 on FreeBSD 5.1 using up all the file handles?
by iftop＠simhardware.co.nz 05 Nov '03

05 Nov '03

Hi Folks, For several weeks I have been running FreeBSD 5.1 Release (was on 4.7 previously). I am using the ports collection of iftop 0.14. What am am finding that that after a day or two I have thousands of open files on the OS. If I exit iftop, that number drops back down to 200 or so, and after I start iftop again it starts climbing again at a rate of about 3 or 4 files per second. I only noticed because after a week it is using all 7000 available file handles, and I get a kernel file table full errors, and everything stops. Anyone else seem this behaviour? Cheers, Stuart Whelan Technical Lead Simulation Hardware LTD DDI: +64 3 3778866 Mobile: +64 27 2828074 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.535 / Virus Database: 330 - Release Date: 1/11/2003

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howdy
by raptor 01 Nov '03

01 Nov '03

hi, Thanx alot for this super program... it is very helpfull for analyzing my network...:") I was wondering would it be harder a output to a file be implemented, more specificly it would be good if I can capture the total speed and/or total/MB transffered every X seconds. So that If I can say something like this : iftop --output-file /tmp/stat.log --interval 10sec -f 'net 192.168.0.0/24' I could get the info about the perfomance of the 192.168.0.0/24 network for the time iftop was runnnig and analyze it further.. time|Bytes|speed-kbit/s 0|1000|30 10|3000|37 .... and so on.. why I need this... I have two providers and switch between them based on the bandwith usage... this way I can gen rought estamites.. runing iftop in different configurations... One other idea was to be able to group the output of iftop based on some criteria say class C networks, I mean instead of seeing every host of the network, see their combined graph... So if I have 5 class C networks I can view their performance... and/or if many users access some outside class C network i can view total speed used to access these severs .. So it has to be source and/or dest based. or auto sensing when I exclude source "s" group on dest addresses, and vs. versa ("d"). Output based on class C networks would be very good too... this way with a single run I can make comparison of several source or destination nets... net|time|Bytes|speed-kbit/s 192.168.0.0/24|0|1000|30 10.10.0.0/24|0|1000|30 192.168.0.0/24|10|3000|37 10.10.0.0/24|10|3000|37 of course to protect of big dumps, I will have to use something like : -f 'net 10.0.0.0/24 or net 192.168.0.0/24' Third idea : make time periods for averaging the 3 speed columns configurable... that is for now... just my 5c.. iftop and tcpdump are most favorite diagnostic tools.. keep the good work

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iftop 0.15pre3
by Paul Warren 21 Oct '03

21 Oct '03

I've just uploaded iftop 0.15pre3. This fixes the missing file problem with yesterday's 0.15pre2. You can get it from: http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.15pre3.tar.gz Apologies for yesterday's broken download. Paul

1 0

iftop 0.15pre2
by Paul Warren 20 Oct '03

20 Oct '03

Another release for y'all to try: http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.15pre2.tar.gz I've added config file support. The code for this was inspired (in the "cp config.{c,h} ~/cvs/iftop" sense of the word) by code from tpop3d. To make things easy, this stuff is totally undocumented, except for me saying: cat > ~/.iftoprc interface: eth0 dns-resolution: yes use-bytes: no log-scale: yes max-bandwidth: 10M filter-code: not port 53 ^D cfgfile.c may give further clues. I'll be documenting this properly for the 0.15 release and at some point I'll add the ability to dump the current configuration to a config file. For your ease and convenience I have changed the letters bound to various options. Actually, this was an attempt at getting consistency between command-line options and run-time buttons. Please let me know if it doesn't work. Paul

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iftop-0.15pre1
by Paul Warren 14 Oct '03

14 Oct '03

Guess what? A new release. 0.15pre1, no less. It's here: http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.15pre1.tar.gz It does this: 0.15 * Added linear bar scales (default) ("L") * Added fixed upper limit for bandwidth * Choose which average bars display ("B") * Fixed the search for libpcap in the configure script Thomas Schwinge <tschwinge(a)gmx.net> Enjoy Paul

1 0

Feature request
by Jason Tackaberry 03 Oct '03

03 Oct '03

Hi, I use iftop every day to monitor the network traffic at the small university I admin. It's a very useful tool; thanks for all your efforts. I have a very minor feature request: when one has source or dest host hidden, it would be useful to indicate somewhere the number of connections that are being amalgamated, perhaps in parens. Something like this: 10.0.1.50 => * (14) 466Kb 420Kb 512Kb <= 280Kb 430Kb 415Kb So I can see at a glance that the bandwidth used by 10.0.1.50 is distributed over 14 separate sessions. Thanks again for iftop, Jason. P.S. I'm not subscribed to the list so please copy me on replies. -- Jason Tackaberry :: tack(a)auc.ca :: 705-949-2301 x330 Academic Computing Support Specialist Information Technology Services Algoma University College :: www.auc.ca

1 0

small patch
by Thomas Schwinge 07 Sep '03

07 Sep '03

Hello! You'll find a small patch attached; it'll make configure actually find libpcap. Regards, Thomas

3 2

0.14 released
by Paul Warren 06 Sep '03

06 Sep '03

I have just uploaded iftop 0.14. New features: - Works on MacOS X - Minor fix to no DNS resolution mode - Includes Chris' if-this-doesn't-work-you-need-a-better-OS forking resolver as a fall back. Available from: http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.14.tar.gz Paul

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RE: [Iftop-users] iftop on openbsd
by Michael 31 Aug '03

31 Aug '03

Ok the make for the patched iftop.c failed : source='iftop.c' object='iftop.o' libtool=no depfile='.deps/iftop.Po' tmpdepfile='.deps/iftop.TPo' depmode=gcc /bin/sh ./config/depcomp gcc -DHAVE_CONFIG_H -I. -I. -I. -g -O2 -c `test -f 'iftop.c' || echo './'`iftop.c iftop.c: In function `packet_loop': iftop.c:511: `p' undeclared (first use in this function) iftop.c:511: (Each undeclared identifier is reported only once iftop.c:511: for each function it appears in.) *** Error code 1 Stop in /root/iftop-0.13. *** Error code 1 Stop in /root/iftop-0.13 (line 352 of Makefile). *** Error code 1 forgive me I'm not much of a coder any ideas ? oh and I need to edit the last email, instead of saying "keyboard input is being recognized" I meant IS NOT being recognized. =( sorry -----Original Message----- From: Michael [mailto:admin@ntworks.org] Sent: Friday, August 29, 2003 11:56 AM To: 'iftop-users(a)lists.beasts.org' Subject: RE: [Iftop-users] iftop on openbsd As a matter of fact it seems none of the keyboard input is being recognized by iftop... I reinstalled my server to openbsd 3.3-stable, and installed iftop, and when running it from ssh session or from the console, it never accepts keyboard input, even a kill command ? I will try the patch Oh and by the way yes openbsd does run under vmware... in fact the openbsd system I am testing iftop on is running under vmware GSX server on a gentoo linux host. -----Original Message----- From: Paul Warren [mailto:pdw@sphinx.mythic-beasts.com] On Behalf Of Paul Warren Sent: Friday, August 29, 2003 8:52 AM To: Michael Cc: iftop-users(a)lists.beasts.org Subject: Re: [Iftop-users] iftop on openbsd On Thu, Aug 28, 2003 at 01:54:38PM -0700, Michael wrote: > I successfully compiled the latest iftop on openbsd 3.4 (installed yesterday > from the current /snapshot/i386/ openbsd directory) > > It seems to work except once loaded I cant stop it with "q" like I can in > linux, and I cant ctrl-C or ctrl-X it or anything it keeps running, I have > to open a new bash shell and kill -9 its pid > > Anyone use iftop on openbsd with no probs? I'm not ignoring this, I just don't know the answer :-( After you press "q" does it keep on running to the extent that you can still press keys and have them do stuff? My guess is that it's a difference in the handling of threads (is that vague enough?), and the stuff that makes is quit is <blame-torch action="pass">stuff that Chris wrote</blame-torch> Paul

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