The Sysadmin’s Daily Grind: Ethtool

NEGOTIATIONS

Article from Issue 65/2006
Author(s):

A touchy LAN that plays like a movie diva can spoil any admin’s day. Ethtool to the rescue!

Murphy got on the bus I was riding a couple of days ago and followed me into my apartment. When I fired up my laptop, Murphy’s Law struck. My harmless plan was to watch TV via streaming from my office. I have a VDR [1] set up in my lounge for this purpose, and a well-kept home network [2] between the lounge and the office to handle the rest. But the performance was so jerky, I really thought I was watching a breakdancing movie. A (fairly exhaustive) diagnosis of the network hardware failed to reveal broken components. My switch is a dumb device without management functionality, so there was nothing to diagnose. What finally helped me save the day was Ethtool [3].

Buy this article as PDF

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

Buy Linux Magazine

SINGLE ISSUES
 
SUBSCRIPTIONS
 
TABLET & SMARTPHONE APPS
Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Charly's Column

    On a trip to Berlin, Charly discovers that the nmap port scanner has a new cousin who enjoys spying on phones – smap scans networks for VoIP devices.

  • Charly's Column

    Easy to remember but still safe – this is the classic conflict when it comes to choosing a password. The PWGen tool offers a sensible compromise.

  • Charly’s Column: OpenNetAdmin

    Last month, the Havege daemon helped organize the chaos in this column. Today, Charly attempts to organize the network – a tale of suffering in three chapters.

  • Sysadmin Stories

    A day on Charly’s network might bring out problems with Ethernet bonding, VLANs and switches, and rogue DHCP servers.

  • Charly's Column: My Traceroute

    Charly takes the name of the “My Traceroute” tool very literally. The journey is the reward for this alternative TTL-measuring utility.

comments powered by Disqus

Direct Download

Read full article as PDF:

Charly_Column.pdf (75.06 kB)

News