.pQd

Service check did not exit properly from nagios plugin in perl

by .pQd
i’m setting up v6 on a few internet-facing servers. i’ve googled a bit and found dual-stack ipv4+ipv6 monitoring with nagios. i’ve started using the wrapper script check_v46 referred there and it works nicely. but i’ve run into a problem – execution of plugin gave me:

fsck on truecrypt

by .pQd
it’s high time to move away from truecrypt [ which i’m doing by moving to luks and btrfs on the top of it for extra thrills ], but i still have bunch of places that were not moved to the alternative full disk encryption. what do do when after unclean shutdown this happens: ?

vectorizing text in pdf – the cheap way

by .pQd
we were getting some logo printed and the print shop was not happy with the pdf we’ve provided – they had some problem with the embedded font and asked us to provide another pdf with vectorized curves instead of text. based on this – although the first method with gsview did not work for me ... Read More

OVH, failover IPs, IPv6, VMs

by .pQd
at work we rent a dedicated server from OVH; except unexplained openvpn throttling all is working pretty well for the price we pay. besides primary IPv4 address OVH can provide few additional ‘failover’ IPv4 addresses and /64 IPv6 subnet. in our setup some of IPv4s and IPv6s are routed to a KVM VM. below – ... Read More

Jeczmyk – Idee za wielkie pieniądze

by .pQd
https://www.youtube.com/watch?v=7zPdd1adl-A cos czuje ze bedzie kolejny keyword do wyszukiwania i sluchania. dobrze prawi, nawet jest o moim ulubionym ‘kongresie futurologicznym’ lema.

idrac7 + ipmitool stopped working with firmware 1.56.55

by .pQd
i use ipmitool to check health of the poweredge servers from nagios. in essence i execute: and alert if the exist code is non-zero, then i execute and again – i alert on non-zero exit code, i also grep the file in search of lines not containing ok/ns. this was working fine for DRAC 5 ... Read More

Samsung CLX-4195FW – displaying only samsung logo on the front screen

by .pQd
newly arrived Samsung CLX-4195FW greeted me with just blue samsung’s logo on the white background presented on the front LCD screen; at the same time printer correctly acquired IP via DHCP and i could access the management interface via the network. i’ve called Samsung 3x and luckily enough at the 3rd attempt i spoke with ... Read More

mac changing on DW1501 wifi card

by .pQd
in dell’s e6220 that i use for work travels i have dw1501 wifi card. in theory it’s possible to change card’s MAC address in the control panel > network and sharing center > change adapter settings > wireless network connection > properties configure > advanced > locally administered MAC address. problem is the values i’ve ... Read More

Dell PowerEdge T20

by .pQd
i’ve bought 2x Dell PowerEdge t20 – they’ll serve as HA pair of routers/vpn endpoints/file servers for a new office. it was the first time i played with intel amt. it’s not bad but neither perfect.

around Gran Canaria

by .pQd
i’ve spent 2 weeks at the beginning of March at Gran Canaria. below – list of the more interesting walking trails we’ve taken.

open maps + own routes

by .pQd
over time open street maps got better and better; i started to rely on them more than on google maps when hiking around – osm gave me more detailed maps of hiking trails in Barcelona and Singapore, Las Palmas and Slovenia. i wanted to share some of the interesting paths here; the best i could ... Read More

sphinx text search – sorting the results by relevancy

by .pQd
a while ago i helped a colleague with moving away from mysql-based text search based on MATCH .. AGAINST to sphinxsearch to improve the performance. without much surprise this helped a lot to improve the response time. recently i was asked to take a look at the setup again and see if we can do ... Read More

openvpn throttled from ovh’s bhs datacenter?

by .pQd
for work we rent a dedicated server from OVH. it’s been 5 months now and i’m pretty satisfied with the service provided. at the initial stage we’ve bumped into a problem that was never really solved; i cannot be even 100% sure if it’s OVH’s fault. UDP-based OpenVPN connection established from OVH’s BHS datacenter to ... Read More

wordpress hangs when uploading an image

by .pQd
i’ve moved my wordpress to a new server few weeks ago. all appeared to work fine but i forgot changing the configuration and providing new upload dir path. result? the media page [ wp-admin/upload.php ] did not open and apache2 appeared to be hanged using 100% cpu. i could not add any media in the ... Read More