.pQd

dd-wrt on dlink dir-600 b2 router

by .pQd
my old linksys router died violently – power led shines, but links on all lan ports were going down after few seconds from bootup. i bought replacement dlink dir-600 and decided to try dd-wrt firmware on it. it went better than expected!.

talking to SphinxQL from java

by .pQd
since a while Sphinx search can be queried not only by their own non-standard interface but also using regular mysql client. they call this feature SphinxQL.

replacement for esva

by .pQd
i’ve been happy user of ESVA / global-domination [virtual in my case] appliance for mail and antivirus filtering. unfortunately it seems that was one-man project and it’s pretty much dead by now. official website – http://www.global-domination.org/ no longer works since ~ march 2010.

exchange 2010 under windows 2008 r2

by .pQd
there is something about exchange… or at least exchange >2003. in 2008 i did my best to install exchange 2007 under windows 2008. and i failed miserably. i gave up and went for ex2003 under w2003 which serves very well. recently i tried to get ex2010 work under w2008r2. and i even succeeded after numerous ... Read More

dnssec panic

by .pQd
[scratchpad] read this. debian’s bind9 works just fine. for windows 2003 server dnscmd /Config /EnableEDnsProbes 1 based on this. i got an interesting answer here

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.