Clayton's Tech Bits

Home

Contact

Resumé / C.V.

Links

Search this site:
Custom Search

Categories:

/ (224)
  Admin/ (86)
    Apache/ (7)
      HTTPS-SSL/ (4)
    Cherokee/ (1)
    LAN/ (4)
    LVM/ (3)
    Monitoring/ (2)
      munin/ (2)
    OpenVPN/ (1)
    SSH-Proxy/ (3)
    SSH-SSL/ (6)
    backups/ (16)
      SpiderOak/ (1)
      backuppc/ (5)
      dirvish/ (1)
      misc/ (6)
      rdiff-backup/ (1)
      rsync/ (1)
      unison/ (1)
    commandLine/ (11)
    crontab/ (1)
    databases/ (8)
      MSSQL/ (2)
      MySQL/ (5)
      PostgreSQL/ (1)
    dynamicDNS/ (2)
    email/ (9)
      Dovecot/ (1)
      deliverability/ (1)
      misc/ (1)
      postfix/ (6)
    iptables/ (2)
    virtualization/ (8)
      VMware/ (1)
      virtualBox/ (7)
  Coding/ (11)
    bash/ (1)
    gdb/ (1)
    git/ (2)
    php/ (4)
    python/ (3)
      Django/ (1)
  Education/ (1)
  Hosting/ (23)
    Amazon/ (14)
      EBS/ (3)
      EC2/ (11)
    Godaddy/ (2)
    NearlyFreeSpeech/ (3)
    Rackspace/ (1)
    vpslink/ (3)
  Linux/ (20)
    Awesome/ (3)
    CPUfreq/ (1)
    Chinese/ (1)
    Debian/ (5)
      WPA/ (1)
    audio/ (1)
    encryption/ (2)
    fonts/ (1)
    misc/ (4)
    router-bridge/ (2)
  SW/ (39)
    browser/ (2)
      Chrome/ (1)
      Firefox/ (1)
    business/ (25)
      Drupal/ (8)
      KnowledgeTree/ (6)
      Redmine/ (2)
      SugarCRM/ (6)
      WebERP/ (2)
      eGroupware/ (1)
    email/ (1)
    fileSharing/ (1)
      mldonkey/ (1)
    graphics/ (2)
    research/ (2)
    website/ (6)
      blog/ (6)
        blosxom/ (3)
        rss2email/ (1)
        webgen/ (1)
  Security/ (12)
    IMchat/ (1)
    circumvention/ (2)
    e-mail/ (4)
    greatFirewall/ (1)
    hacking/ (1)
    password/ (1)
    privacy/ (1)
    skype/ (1)
  Services/ (1)
    fileSharing/ (1)
  TechWriting/ (1)
  xHW/ (13)
    Lenovo/ (1)
    Motorola_A1200/ (2)
    Thinkpad_600e/ (1)
    Thinkpad_a21m/ (3)
    Thinkpad_i1300/ (1)
    Thinkpad_x24/ (1)
    USB_audio/ (1)
    scanner/ (1)
    wirelessCards/ (2)
  xLife/ (17)
    China/ (9)
      Beijing/ (5)
        OpenSource/ (3)
    Expatriation/ (1)
    Vietnam/ (7)

Archives:

  • 2012/03
  • 2012/01
  • 2011/12
  • 2011/11
  • 2011/10
  • 2011/09
  • 2011/08
  • 2011/07
  • 2011/06
  • 2011/05
  • 2011/04
  • 2011/02
  • 2010/12
  • 2010/11
  • 2010/10
  • 2010/09
  • 2010/08
  • 2010/07
  • 2010/06
  • 2010/05
  • 2010/04
  • 2010/03
  • 2010/02
  • 2010/01
  • 2009/12
  • 2009/11
  • 2009/10
  • 2009/09
  • 2009/08
  • 2009/07
  • 2009/06
  • 2009/05
  • 2009/04
  • 2009/03
  • 2009/02
  • 2009/01
  • 2008/12
  • 2008/11
  • 2008/10
  • 2008/09
  • Subscribe XML RSS Feed

    Mon, 22 Sep 2008


    /Admin/LAN: How to Monitor Bandwidth Useage on your LAN

    Suppose you have roomates who like downloading, and "someone" does not have the common-sense to limit their download rate, bringing your whole network to its knees so that no one else can get anything done. Suppose this goes on all day. Suppose you also just happen to be the one providing wireless to the whole house with your very own home-made Linux wireless router. That makes dealing with bandwidth hogs much easier.

    First step: collect date. Install apache and the bandwidthd package on your wireless router. Create a /var/www/bandwidth directory, and edit /etc/bandwidthd/bandwidthd.conf to tell it to put the graphs it generates in that directory (/var/www/bandwidth) and which network interface to monitor (wlan0):

    htdocs_dir "/var/www/bandwidth"
    dev "wlan0"

    Start bandwidthd, wait a couple of minutes, then point your web browser at

    http://192.168.1.1/bandwidth/

    where 192.168.1.1 is assumed to be the IP address of your wireless router. You will be presented with a graph of the bandwidth rate and total useage of every IP (computer) pushing traffic through the selected network interface (wlan0 in this example).

    It should soon become apparent who the culprit is.

    posted at: 07:18 | path: /Admin/LAN | permanent link to this entry