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ntop 3.3.9 (Default branch)
12-14-2008
ntop is a network probe that shows network usage in a way similar to what top does for processes. In interactive mode, it displays the network status on the user's terminal. In Web mode, it acts as a Web server, creating an HTML dump of the network status. It sports a NetFlow/sFlow emitter/collector, an HTTP-based client interface for creating ntop-centric monitoring applications, and RRD for persistently storing traffic statistics. License: GNU General Public License (GPL) Changes:|
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SINFO(1) User Manuals SINFO(1) NAME
sinfo - a monitoring tool for networked computers SYNOPSIS
sinfo [-q] [-V] [-W] [-H] [-L] [-h host[:port] ] [-u user ] [-d delay ] [-s] [-o] [-i process ] [-n] [-D] [-t count ] [-i processname ] [-c scale ] DESCRIPTION
sinfo displays some information of the nodes in your local network. For each node the system load, the memory utilization and the `TOP-5' user processes will be displayed. sinfo uses the sinfod(8) to gather these informations. For further details of the internal mechanisms refer to the sinfod(8) manual. OPTIONS
-q/--quiet be quiet - don't display startup informations. -V/--version Print the version number and exit. -W/--wwwmode Web-mode: List all hosts and their informations in html-format and exit. Look at sinfo.pl.cgi for a sample cgi-script. -H/--hostsmode List all host names of nodes running a sinfod(8) and exit. -I/--ipmode List all IPs of nodes running a sinfod(8) and exit. --hostsandipmode List all host names and IP addresses of nodes running a sinfod(8) and exit. -L/--loadmode List all known host names with the current system load and exit. -h/--host <host[:port]> Fetch information from the sinfod(8) running on `host' instead of localhost. You may also specify the port number of the sinfod(8) your are connecting to. This option may be useful in cases where ssh(1) or similar programs are used to tunnel the connection from sinfo(1) to sinfod(8) through a firewall. It is possible to use multiple -h option to connect to more than one sinfod to monitor more than one network with one sinfo process. If your want to set different delays for the connections -d has to be specified prior to the corresponding -h options. $ sinfo -h localhost:60001 (the default values) $ sinfo -h 127.0.0.1:60001 (... if you want to set an IP-address directly) $ sinfo -h my.computer.at.work (port 60001 will be used as default on my.computer.at.work) $ ssh -q -C me@my.computer.at.work -L 60002:my.computer.at.work:60001 (establish the tunnel) $ sinfo -h localhost:60002 (connect through the tunnel) $ sinfo -h localhost -h host.on.another.net (connect two demons to join the sinfo broadcasts of two networks) --udp / --tcp Use UDP(default) or TCP to connect to sinfod. -u/--user <user> Highlight all processes of `user' instead of using environment variable $LOGNAME. -d/--delay <delay> Set the delay (in seconds) between two updates. Default is one second. --filtermarker <marker> Request only informations matching <marker>. -s/--systeminfo Include system information (resolved by a uname -a call) in the list. -o/--own Only display your own processes or the processes owned by user '-u user' (this overrides the '-t count' setting). -i/--ignore <process> Don't display <process> ; --ignore may be set multiple times. -n/--netload Display network load. -D/--diskload Display disk load (buffer allocation rate) of locally connected disks. -t/--top <count> Restrict the number of processes displayed to `count'. -c/--scale <scale> Set the scaling of the CPU load bars to "log", "lin" or "full". KEYBOARD COMMANDS
q Quit sinfo. PageUp, PageDown Scroll the screen by one page. UpArrow, u; DownArrow, d Scroll the screen by one line. Home Jump to the top line. s Toggle display of system informations. o Toggle display of your own processes. n Toggle display of network informations. D Toggle display of disk load. t Toggle display of the TOP n processes. c Toggle the scaling of the CPU load bars form "log", "lin" to full. EXIT CODES
The exit codes used by sinfo are: 0 everything OK 1 Connection to sinfod failed. ENVIRONMENT
HOSTNAME Highlight $HOSTNAME in sinfo's output. LOGNAME Used to determine the name of the user which processes shall be highlighted. May be overridden by the -u option. TERM The name of your terminal. Used to select escape sequences out of the terminfo(5) database. AUTHOR
Juergen Rinas <jrinas@gmx.de> SEE ALSO
sinfod(8),sshallsinfo(1) Linux JANUARY 2005 SINFO(1)