From owner-freebsd-questions Tue Oct 15 13:34: 3 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 14F9837B401 for ; Tue, 15 Oct 2002 13:34:02 -0700 (PDT) Received: from ermis.cc.duth.gr (ermis.cc.duth.gr [192.108.114.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id D02FB43E75 for ; Tue, 15 Oct 2002 13:33:58 -0700 (PDT) (envelope-from bigbrother@bonbon.net) Received: from bigb3server.bbcluster.gr (b9-29.xan.duth.gr [193.92.211.29]) by ermis.cc.duth.gr (8.12.3/8.12.3) with ESMTP id g9FKXodv058638 for ; Tue, 15 Oct 2002 23:33:51 +0300 (EEST) (envelope-from bigbrother@bonbon.net) Received: from bigb3server.bbcluster.gr (localhost.bbcluster.gr [127.0.0.1]) by bigb3server.bbcluster.gr (8.12.3/8.12.3) with ESMTP id g9FK51CZ093075 for ; Tue, 15 Oct 2002 23:05:01 +0300 (EEST) (envelope-from bigbrother@bonbon.net) Received: from localhost (bigbrother@localhost) by bigb3server.bbcluster.gr (8.12.3/8.12.3/Submit) with ESMTP id g9FK51ue093071 for ; Tue, 15 Oct 2002 23:05:01 +0300 (EEST) X-Authentication-Warning: bigb3server.bbcluster.gr: bigbrother owned process doing -bs Date: Tue, 15 Oct 2002 23:05:01 +0300 (EEST) From: BigBrother X-X-Sender: bigbrother@bigb3server.bbcluster.gr To: questions@FreeBSD.ORG Subject: Re: Monitor IP Traffic from many BSD computers Message-ID: <20021015230135.R212-100000@bigb3server.bbcluster.gr> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG A nice solution which I make use is: a) install a SNMPD client on every box /usr/ports/net/net-snmp b) change the community string to something else than `public` c) create sample config file for snmpd d) install MRTG /usr/ports/net/mrtg e) Configure MRTG to be daemon and query every 5 minutes the SNMPD on all the boxes. f) If u like security :) use firewall to protect the SNMP port! ------------------------------ I am using this setup on my local cluster. It works nicely! p.s. Of course if u like something more thatn measuring bandwidth then u can run a sniffer on every machine and forward the results to a main server, or u could capture the packets in raw form in a file and another workstation to be used to analyze these packets. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message