100 lines
4 KiB
Text
100 lines
4 KiB
Text
wmnet -- network monitor for WindowMaker using kernel IP accounting
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for Linux, FreeBSD, and OpenBSD. version 1.06
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Jesse B. Off <joff@iastate.edu> 8/9/1998
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Katharine Osborne <kaos@digitalkaos.net> 4/5/2000
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This little program polls network statistics and does a few things with
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the data it gets. It has small blinking lights for the rx and tx of IP
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packets, a digital speedometer of your polled stat's current
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speed and a bar graph like xload et. al which has a
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tx speed graph from bottom-up and rx speed graph from the top-down.
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The speedometer keeps track of the current speed per second and shows
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it in a color corresponding to which of rx or tx that has the highest
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speed at the moment. Also, the graph is drawn in a way that the highest
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speed is drawn on top of the other while the other is in the background.
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Depending on whether you are running ppp or ethernet
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connections, you should set the -x parameter to about 1.5 times the
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high speed of your connection... the default is 6000 which will be
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stupid if you're on a ethernet line with a max of about 800 kb/sec.
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I've found the best for an ethernet line is '-x 10000000 -l' Having
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the logarithmic scale lets you see any speed of traffic from a telnet
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session to downloadeding something from across the hall at 600 kb/sec.
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I tried to keep this is as small and efficient as possible CPU time on my
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K5 PR100 with the default poll time of 25000 microseconds (1 microsecond
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== 1 millionth of a second.) is less than 20 seconds per 24 hours
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Which is less than even wmmixer uses for me.
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wmnet now uses drivers to get stats. The existing stat driver from previous
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versions has been moved to the ipfwadm driver. To get some generic IP
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accounting rules using ipfwadm:
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ipfwadm -A in -i -S 0.0.0.0/0
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ipfwadm -A out -i -D 0.0.0.0/0
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I have also included a couple drivers for Linux 2.1. You can either use
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ipchains or general device stats received from /proc/net/dev. If you don't
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want to fool around with IP chains, use the devstats driver and specify the
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interface to monitor useing the --device option. To get a generic set of ip
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chains rules for the ipchains driver:
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ipchains -N acctin
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ipchains -N acctout
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ipchains -I input 1 -j acctin
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ipchains -I output 1 -j acctout
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ipchains -I acctin 1
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ipchains -I acctout 1
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There is also the pppstats driver available for both Linux 2.0 and 2.1.
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If you just want general monitoring of your ppp devices, use this driver.
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In version 1.04+ I have added (among others) the --promisc option.
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This makes your IP accounting rules apply across the whole of your
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network segment. This could be useful for monitoring your whole subnet
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traffic bandwidth. However, using this option as a normal user requires
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wmnet to be suid root, which is something many people dispise so it is
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not suid by default. To make wmnet suid, as root:
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chmod u+s /usr/X11R6/bin/wmnet
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Please only do this if you need to. I did write this program with it
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possibly being suid in mind so I am fairly confident that this can be
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suid without any security concerns. But then again, thats what they all
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say. Read the code then judge for yourself if need be, I WONT have
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it done automatically for you. Really the only 'if' is the GNU libc
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getopt_long() function.
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For those afterstep users out there using wmnet, you may have noticed that
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when wmnet is swallowed, the whole thing is not visible. This is due to
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the afterstep wharf's inability to swallow a dock.app as large as wmnet.
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(Sorry guys, theres nothing I can do about that!) Theres supposedly an
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unofficial patch around for afterstep that allows it to fully display,
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consult your local afterstep guru on the what and where.
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Much thanks goes to Vladimir Popov for writing the OpenBSD patch.
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Consult the man page for additional documentation.
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homepage for wmnet:
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http://www.digitalkaos.net/linux/wmnet/
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TO INSTALL from tar.gz:
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tar xfzv wmnet-1.06.tar.gz
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cd wmnet-1.06
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xmkmf
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make
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strip wmnet
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make install
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make install.man
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NOTE: you may wanna change config.h to change the compiled in drivers.
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ideas/comments/bug reports -----> kaos@digitalkaos.net
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http://www.digitalkaos.net/linux/wmnet/
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