The Sys admin’s daily grind: Nttcp

UNDER THE WEATHER

Article from Issue 83/2007
Author(s):

Some weather forecasts give you the temperature and a windchill adjustment, and a similar forecast for bandwidth would be helpful. If you feel the bandwidth is too low – and it always is – you need some kind of measuring instrument to reveal the truth.

If you are a DSL customer and want to find out whether you really are getting what you pay for, it makes sense to measure the actual bandwidth between two machines. If I set up an encrypted VPN tunnel, I’m obviously interested in the effect that encryption has on the transmission speed. Is the new antivirus proxy spoiling my customers’ surfing experience? Does the firewall appliance really provide the “wirespeed” the vendor promised? How fast is my wireless LAN with a massive concrete wall separating two access points? Is the PowerLAN connection between my laptop and my Linux video recorder fast enough for streaming? Nttcp answers all of these questions.

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

SINGLE ISSUES
Print Issues
Digital Issues
 
SUBSCRIPTIONS
Print Subs
Digisubs
 
TABLET & SMARTPHONE APPS
Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Charly's Column – Reverse SSH Tunnel

    This month, Charly Kühnast draws attention to a widely unknown weather phenomenon: The instability of rarely used tunnels leading to a Raspberry Pi. Read on for greater insights.

    more »
  • Charly's Column: Weather Page

    To find out what the weather is like, sys admin columnist Charly Kühnast no longer needs to go outdoors get wet, blown away, frozen to death, or sunburned.

    more »
  • Charly's Column

    Parallel SSH is the name of an easy-to-configure tool that our resident sys admin, Charly, now routinely deploys whenever he needs to launch the same programs, copy the same files, or kill the same processes simultaneously on multiple computers.

    more »
  • Charly's Column

    Zsync handles a special case: large volume download files that change frequently but not drastically. Charly shows how this handy file fetcher can save you time and bandwidth.

    more »
  • Charly's Column: Trickle

    If your data traffic suffers from congestion at times, don't worry. Now you can shoot down programs that are heavy on traffic to free up the inflow and outflow.

    more »
comments powered by Disqus

Visit Our Shop

Trial Subscription

Digital Subscription

Subscribe

Direct Download

Read full article as PDF:

Charlys_Column.pdf  (95.53 kB)

News

Tag Cloud

Administration Community Desktop Events Hardware Linux Linux Pro Magazine Mobile Programming Software Ubuntu Web Development Windows free software open source