.pQd

2010.02 – jordan

by .pQd
What: trip to Jordan organized by polish travel company – itaka. It took place at the end of February 2010.

partition alignment

by .pQd
i’ve got new hdd delivered. it’ll be used as one of rotated disks for offline backup storage. it is WDC WD15EARS-00Z5B1 – WD Caviar Green 1.5 TB and is one of first disks with 4kB physical sectors instead of 512B ones. i’ve read at some places about performance impact of miss-aligned linux partitions for write ... Read More

interface teaming / bonding + vlan under linux / debian

by .pQd
goal: layer-2 failover without any special features on the switch level. after recent hang of on of switches i’d like to improve reliability of connectivity within a server rack. i already have all servers connected to two different switches… now it’s time for automated failover.

calls from nagios

by .pQd
i’ve been using nagios to monitor my infrastructure for long time. in most cases it’s sending just e-mails. at ecowin/reuters i also had it connected with sms gateway. Siements TC35 connected via serial cable to linux box served us very well. i used debian’s scmxx to send messages. i’ve been thinking recently about using SIP ... Read More

mysql replication – some tips

by .pQd
so.. i have couple of master machines and few slaves. some of slaves are offsite – 60ms away from primary site.

något på svenska

by .pQd
as side effect of my fruitless swedish lessons – some text about Stanislaw Lem’s ‘futurological congress’

firefighting – asn32 and quagga crash

by .pQd
debian lenny, out-of-the-box quagga_0.99.10-1lenny1_i386 symptoms of disaster in bgpd.log: 2009/05/03 14:00:47 BGP: Assertion `len < str_size' failed in file bgp_aspath.c, line 619, function aspath_make_str_count 2009/05/03 14:00:47 BGP: Backtrace for 14 stack frames: 2009/05/03 14:00:47 BGP: [bt 0] /usr/lib/libzebra.so.0(zlog_backtrace+0x2a) [0xb7f50a5a] 2009/05/03 14:00:47 BGP: [bt 1] /usr/lib/libzebra.so.0(_zlog_assert_failed+0x77) [0xb7f50be7] [..]

2x full bgp feed with quagga

by .pQd
maybe someone will find this one handy. it’s description + config file for bgp setup i’ve recently put on production using debian lenny + quagga.

spain

by .pQd
20090317-malaga,antequera,torremolinos 20090318-torremolinos,ronda,manilva 20090319-manilva,gibraltar,la barrosa 20090320-la barrosa,cadiz,sevilla 20090321-sevilla,carmona,almodovar del rio,cordoba 20090322-cordoba 20090323-cordoba,sierra nevada,granada 20090324-granada,calahonda 20090325-calahonda,malaga 20090326-malaga pics: http://fot.kudzia.eu/index.php/20090326-andalucia lesson learned: leaving car with couple of backpacks at the back seat in spain is bad idea. window to back door in ford focus + replacement costs 90E.

FAR

by .pQd
far is old school console file manager for windows. since quite a while it was open sourced but i’ve never had enough patience to find actual builds of it. now i got them: you can download lagal free builds of far woot !

data recovery from dying hard disk with dd

by .pQd
situation: i receive notebook with hdd in agonal state. winxp no longer boots up. i decide to connect hdd to desktop pc. bios detects it, but operating system [another winxp] is unable to recognize partitions. surprisingly linux [namely knoppix] detects partitions and is even able to read some files from secondary partition. i take another ... Read More

weekend off : poland

by .pQd
random snapshot of unusual weekend. i took a day off on previous Friday and got flight to Poland. objective – attend the wedding of kov & Monika.

spain

by .pQd
victims and perpetrators at the same time: Thomas and me, time of events: 20070303-20060310, place: Spain. mainly Andalusia.