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ntop 3.3.10rc1 (Development branch)
01-16-2009
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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SINFOD(8) User Manuals SINFOD(8) NAME
sinfod - a monitoring tool for networked computers SYNOPSIS
sinfod [-F] [-q] [-V] [-b #.#.#.#] [-c] [-n card ] [ -N nicevalue ] [ -m marker ] [ -i processname ] [-s][-W] DESCRIPTION
sinfod distributes system information to other sinfods on your local network. These Information include the system load, memory utilization and the `TOP-5' processes on every machine. It's main advantage is, that these informations are broadcasted using the udp(7) protocol. If each node broadcasts it's information in a cooperative manner, the network load is O(N), where N is the number of nodes in your network. Other systems to monitor your cluster load (e.g. rup(1) ) are using a polling scheme where every node has to ask every other node for the system information: In that case the network load is O(N**2). The task of sinfod is to broadcast the relevant information for the local node and to collect broadcasts from other nodes. Other programs ( sinfo(1) ) can get access to this information via a simple tcp(7) connection that normally is routed through the local loopback inter- face. OPTIONS
-F/--foreground Unlike normal operation, sinfod will not detach from the terminal when given this option. Some debugging informations will be visi- ble. -q/--quiet Start quietly - for init scripts. -V/--version Print the version number and exit. -b #.#.#.#/--bcastaddress=#.#.#.# Set the broadcast address of the sinfod. Default is 255.255.255.255. In you want to run sinfod without a network card "-b 127.0.0.1" may be necessary. -c/--cmdline Broadcast the full command line of a process instead of the command only. -m marker/--marker=marker Mark the machine with a name. e.g. laboratory, pool or cluster. -i/--ignore <process> Don't broadcast any information on <process> ; --ignore may be set multiple times. -t/--top <count> Broadcast information on the top <count> processes; default: 5 -n card/--networkcard=card Set the name of the network card whose informations will be broadcasted. (e.g. eth0). Default is the network card that saw the most traffic at the start of sinfod. -N nicevalue/--nice=nicevalue Set the priority of this demon to nicevalue. Default is 15. -s/--spymode Deactivate the TCP interface and the collection of received packets. The demon starts in a broadcast-only mode. -W/--watchdog Start with simple watchdog. AUTHOR
Juergen Rinas <jrinas@gmx.de> SEE ALSO
sinfo(1),sshallsinfo(1), Linux JANUARY 2005 SINFOD(8)