Tag Archives: Linux
I often find myself needing a simple tool to diagnose TCP and UDP connection issues in real time. While tcpdump is an excellent tool for debugging issues at the packet level, a higher level tool is often better to diagnose … Continue reading
Kernels RPMs are install only packages but CentOS 4 has no limit on the number of install only packages it will keep around, so you can easily end up with years worth of kernels installed on your server. This doesn’t … Continue reading
Python is a great language but CentOS 5 comes with Python 2.4 which is pretty old nowadays. CentOS’s will remain on that version of Python until it reaches EOL since upgrading to a newer versions can introduce changes which are … Continue reading
The Dell DRAC (Dell Remote Access Card) is a powerful piece of hardware for remote server management. Utilizing a DRAC card, you can have total server control from remote locations including control to power on or off the server as … Continue reading
Ann Arbor, Michigan, December 1, 2010 — Nexcess, a leading provider of shared, dedicated, and eCommerce web hosting services, announced it has adopted Ksplice’s Uptrack “rebootless” Linux technology, bringing its customers a new class of best-of-breed server offerings.
When performance tuning any modern Linux system, selecting a proper I/O scheduler is an important but often under looked optimization. Linux comes configured with the cfq (Completely Fair Queuing) scheduler which has been optimized for best performance over a wide … Continue reading