Re: How can I measure the network load ?

From: norm (norm_at_sunperf.com)
Date: 11/27/03

  • Next message: Mark C: "Unix Account not receiving email" 
    Date: 26 Nov 2003 16:21:42 -0800

    phn@icke-reklam.ipsec.nu wrote in message news:<bq0c7e$2gnm$4@nyheter.ipsec.se>...
    > In comp.unix.misc norm <norm@sunperf.com> wrote:
    > > Nicolas HUYNH <huynh@ath.cena.fr> wrote in message news:<3FBA4235.5030203@ath.cena.fr>...
    > >> Hi
    > >>
    > >> I am looking for a tool allowing to get periodically
    > >> the network load of some machines on a local area network
    > >> (Linux and Solaris 8), and the amount of information
    > >> between clients and servers of my distributed application.
    > >>
    > >> The aim is to gather enough information to optimize
    > >> the distribution of my processes over the network,
    > >> to know which clients/servers are the most bandwith
    > >> consuming in runtime conditons, and so on ...
    > >>
    > >> I tried netstat, but this does not give me full
    > >> satisfaction, and the result is different on Linux
    > >> and Solaris.
    > >>
    > >> Thanks for any advice !
    > >>
    > >> Nicolas
    >
    >
    > > For Solaris, look at http://www.sunperf.com/perfmontools.html
    >
    > > For Linux, I am working on a port currently. These tools do not
    > > require root, so no security problems.
    >
    > > http://www.sunperf.com/images/linux.screen_dump.png
    >
    > > Norm.
    >
    >
    > For solaris linux cisco and every other device that speaks SNMP
    > see mrtg "http://people.ee.ethz.ch/~oetiker/webtools/mrtg/"
    >
    > Will generate historical graphs too, viewable on any html capable
    > device ( yes, you heard right, and in addition it sort of
    > works even with IE )

    There are significant security risks in running snmp. You may
    also be aware that oracle sells database software?

    http://www.postgres.org
    http://www.mysql.org

    http://www.kb.cert.org/vuls/id/528719

    You might want to note that Cisco is listed as vulnerable.
    (you brought up Cisco, so I mention it.) There were also
    worms which targeted Solaris SNMP.

    While I am sure that it has been fixed, what other problems
    are lurking? I would not run SNMP on a network connected to
    the Internet. Despite that, it seems like a lovely tool,
    but no CPU load, Disk IO, or VM statitics did I see. I suppose
    you will now tell me about virtual adrian. My tool uses
    less CPU resources than tools like SE toolkit, or top.

    I am working on having it generate images, for web browsers as
    well. Something like this:

    http://www.sunperf.com/images/ce0.7.obytes.png

    Thanks for the link.

    Norm.

  • Next message: Mark C: "Unix Account not receiving email"

    Relevant Pages

    • Re: How can I measure the network load ?
      ... >> require root, so no security problems. ... >> Norm. ... > For solaris linux cisco and every other device that speaks SNMP ... There are significant security risks in running snmp. ...
      (comp.unix.questions)
    • Re: How can I measure the network load ?
      ... >> require root, so no security problems. ... >> Norm. ... > For solaris linux cisco and every other device that speaks SNMP ... There are significant security risks in running snmp. ...
      (comp.unix.solaris)
    • Re: Network monitoring
      ... does have SNMP but I didn't see the docs on accessing it or polling it. ... What I'd like to do is have a way for my Linux system to periodically ... Just in case, I'll give you a very short intro to snmp, just in case. ... And if you configure the snmptrap host on your AP to a linux box, ...
      (Ubuntu)
    • SNMP on Wireless Access Point Linksys WRT54G
      ... Hi, I'm new to linux networking, so sorry if a don't understand something. ... It has a linux firmware ... Can I get this with SNMP?. ...
      (comp.os.linux.networking)
    • ANNOUNCE: ComSNMP 1.0 Trilingual Tool Kit Win32/Linux Version
      ... Linux version of the Kit. ... weight components out of a box for Windows and Linux ... to develop NMS applications requiring SNMP V3. ... of network management software on Windows 32 ...
      (comp.protocols.snmp)