Sysadmin

http://racktables.org/ “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!”

http://networkadminkb.com/kb/Knowledge%20Base/VMWare/How%20to%20install%20VMXNET%20network%20adapter%20and%20driver%20for%20VM%92s%20in%20ESX%20Server.aspx by default vmware installs “pcnet32” network card which is a software emulation of 100MB card; most ppl switch

http://forum.nginx.org/read.php?2,2073 some notes about keep-alive proxy setup for apache

http://forum.nginx.org/read.php?2,1008,page=1 post on nginx forum that provides some insights about central logging / log collections

http://fasterdata.es.net/TCP-tuning/ 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, i.e. the situation when you normally use specialized networking hardware (read: cisco)

http://tigervnc.org/ likely to be a replacement for tightvnc (better performance )

http://www.netbsd.org/~ad/50/img0.html 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/ )

https://bugzilla.redhat.com/show_bug.cgi?id=484667 issue with dropped packets on newer broadcomm ethernet cards, found in dell 1950III servers

http://www.gossamer-threads.com/lists/quagga/users/16802 email threads that provides some pieces of info about linux routing performance (from 2008 )

http://www.google.com/url?sa=t&source=web&ct=res&cd=2&url=http%3A%2F%2Fwww.academypublisher.com%2Fjnw%2Fvol02%2Fno03%2Fjnw02030617.pdf&ei=-4zzSZ38FpywtAP0sLDPCg&rct=j&q=Linux+sofware+router%3A+data+plane+optimizations&usg=AFQjCNE5OzutnNt9SWgOaMcZydC5jLXTwg in-depth linux routing performance evaluation, including code profiling, execution path analysis, etc