easy clustered services monitoring with nagios and check_mk: mathias-kettner.de/checkmk_cluste…

C + getdents() -> `ls-fast` for a directory with a huge number of files; with a simple tuning `wc-fast`, `rm-fast` : unix.stackexchange.com/questions/1200…

POSIX bracket expressions: regular-expressions.info/posixbrackets.…

great post on tuning TCP TIME_WAIT on Linux vincent.bernat.im/en/blog/2014-t…

Stunning Linux performance tools map by Brendan Gregg. More info and links are here j.mp/1o9GpeO

Just learned about Japanese visual multiplication (counting intersections); mind blown.

Finally I found time to read dave.cheney.net/2014/06/07/fiv… - awesome. Perfect for not only #gophers but also lang agnostics. Thanks Dave Cheney

Pizza as a Service is a brilliant analogy for explaining the various cloud computing service models.

Minimum Viable Product: Build a slice across, instead of one layer at a time. #mvp /cc Aarron Walter @benhyphenrowe

sunday morning math exercises... :-)

Concurrency programming - Locks, Actors, and STM in pictures: adit.io/posts/2013-05-…

ipmitool -H host-ilo -U me -f pass.txt -L USER -I lanplus sdr elist all - list sensors data for IPMI-enabled devices; ipmiping to test host

RHEL rpm SPEC - `rpm --showrc` shows all the defined macros; `rpm --eval %{macroname}` shows what a specific macro evaluates to.

Live upgrading many thousand of servers from an ancient RedHat to a 10y newer Debian base one - great CS and tips: marc.merlins.org/linux/talks/Pr…

Learn #HTTP status codes in one image... :-) // via About Programming //

Comparing different concurrency models on the JVM slideshare.net/mariofusco/com…

2010 but still worth reading for everyone who is using vSphere - VMware architecture and performance analyses - slideshare.net/rjmcdougall/us…

Get your Windows8 COA key using linux: hexdump -s 56 -e '/29 "%s\n"' /sys/firmware/acpi/tables/MSDM (`xxd` and `od` works as well)

Great paper about disk utilisation (#dtrace, psio, iosnoop + priceless tips and advices): brendangregg.com/Solaris/paper_…

Hit by problems with UEFI, syslinux.efi and linux kernels lack EFISTUB; Current solution: pxegrub or legancy bios. syslinux.org/archives/2015-…