I am doing it in a future occasion. I figured out netflow after nearly 4 years. So I am happy.
I shall send a command and dump. We need two components: 1) netflow collector(softflowd on openbsd) 2) netflow reader (flowd-reader) Using these two we can obtain the packet flows. I shall give you a sample soon. -Girish On Wed, Jun 19, 2013 at 5:10 PM, kavin nath <kavinse...@gmail.com> wrote: > Hi Girish, > can you pls provide some dumps about the netflow. > > Regards, > kavin > > > On Wed, Jun 19, 2013 at 12:40 PM, Girish Venkatachalam < > girishvenkatacha...@gmail.com> wrote: > >> It is very easy to make money. >> >> It is very easy to create a software product. >> >> It is also easy to sell on the Internet. >> >> Okay? >> >> Do as I say. >> >> Don't ask me why I am poor and unsuccessful. I am only good at giving >> practical advice that works. >> >> Netflow is a Cisco standard for measuring the traffic flows in a network. >> >> By that I mean your LAN. >> >> Nowadays packet traffic determine how busy your hotel business is. >> >> Think of a hotel. >> >> 100s of tables, 4 at each and 10 waiters. Food is being served. Plates >> are cleaned. >> >> And people walk to wash their hands. >> >> Also cash is collected and change given. >> >> People move around carrying the "business". >> >> In the software equivalent, this happens using packets. >> >> In your LAN, say college LAN some are playing games, some watching >> p0rn, some watching >> some youtube movie, some reading up , some playing with network protocols. >> >> Netflow gives you a way to instrument a node in your network, say your >> router or firewall to >> passively identify the traffic patterns, how many packets are coming >> in from Noda A to Node B, >> how many going out, which protocol and so on. >> >> SNMP or simple network management protocol is used to query a network >> entity that runs an SNMP server or >> agent to report the various system statistics. But netflow has >> nothing at all to do with SNMP. >> >> Netflow passively measures the traffic flows. And tells you which IP >> address is using up how much bandwidth >> and for how long. >> >> It is a really cool tool. >> >> SNMP works differently. You have managers and agents and you query >> every node to know which processor, >> how much RAM, what disk usage is there and of course, how many >> network interfaces are there, what their >> usages are etc. >> >> SNMP may or may not be enabled. >> >> It works by querying. But netflow will tell you everything by just >> running a netflow daemon, a collector that >> sits in the node that sees all the packets in your network. Typically >> a forwarder like your default gateway. >> >> And once you have to data, then what? >> >> Create graphs, tell the sys admin that you have to provision more >> bandwidth or block p2p traffic and so on. >> >> It is a really fantastic forensic and educational tool to study your >> demographics. >> >> What does this have to do with money making? >> >> Well Zoho has been making money using this technology and many others. >> They created useful dashboards, >> they created useful tools to collate the data, to visually represent >> and analyze this. >> >> Despite there being 100s of free tools they are able to make money. Why? >> >> People pay money for convenience. When they don't have to work hard. >> >> Almost all open source tools require you to work a little bit to see >> pretty graphs of netflow. >> >> There you go. >> >> Products don't have to be made from scratch. You can piggyback on a >> really good concept. >> >> -Girish >> >> -- >> Gayatri Hitech >> http://gayatri-hitech.com >> _______________________________________________ >> ILUGC Mailing List: >> http://www.ae.iitm.ac.in/mailman/listinfo/ilugc >> ILUGC Mailing List Guidelines: >> http://ilugc.in/mailinglist-guidelines >> > > > > -- > s.s.kavinnath > challenge everything > _______________________________________________ > ILUGC Mailing List: > http://www.ae.iitm.ac.in/mailman/listinfo/ilugc > ILUGC Mailing List Guidelines: > http://ilugc.in/mailinglist-guidelines -- Gayatri Hitech http://gayatri-hitech.com _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ILUGC Mailing List Guidelines: http://ilugc.in/mailinglist-guidelines
