Archive for the 'sysadmin' Category

RackTables

Friday, August 21st, 2009

“Racktables is a nifty and robust solution for datacenter and server room asset management. It helps document hardware assets, network addresses, space in racks, networks configuration and much much more!”

Knowledge Base – How to install VMXNET network adapter and driver for VM’s in ESX Server

Friday, July 10th, 2009

by default vmware installs “pcnet32″ network card which is a software emulation of 100MB card; most ppl switch

Experiences using nginx to front-end apache

Wednesday, May 20th, 2009

some notes about keep-alive proxy setup for apache

[nginx forum post] Centralized logging for multiple servers

Wednesday, May 20th, 2009

post on nginx forum that provides some insights about central logging / log collections

TCP Tuning Guide [Office of Science, DOE, US GOV]

Friday, May 15th, 2009

Excellent site provides both theoretical background and practical recommendation for the situation when you need to push limits of TCP links using regular OS and commodity hardware. Especially useful if you need to do it via long-haul fast TCP link,…

TigerVNC

Thursday, May 14th, 2009

likely to be a replacement for tightvnc (better performance )

Introducing NetBSD 5.0

Friday, May 8th, 2009

BSD 5.0 release presentation, includes benchmarks: F10 vs FreeBSD 7.x vs NetBSD 4.0 and 5.0 (also see http://lwn.net/Articles/330909/ )

Bug 484667 – Dropping packets in bnx2 since 1.7.9 bnx2 version

Sunday, April 26th, 2009

issue with dropped packets on newer broadcomm ethernet cards, found in dell 1950III servers

Best hardware for maximum throughput and PPS performance | Quagga | Users

Saturday, April 25th, 2009

email threads that provides some pieces of info about linux routing performance (from 2008 )

Linux Software Router : Data Plane Optimization and Performance …

Saturday, April 25th, 2009

in-depth linux routing performance evaluation, including code profiling, execution path analysis, etc