mysql innodb process locks in limbo by Herman Bos , 12 Mar 2014

After switching a virtual IP around with keepalived we experienced a locking issue. Some client process on the server had some locks which did not get released but we could not see which query caused it.

FreeBSD fix/cheat sheet by Herman Bos , 12 Mar 2014

For me, using FreeBSD is still a bit like eating soup with a fork. Everything seems to make perfect sense but when I get to work I feel crippled and get annoyed by small differences with a GNU/Linux environment.

DDoS mitigated; NTP Amplification attack by Herman Bos , 20 Feb 2014

Today we received a DDoS on our network which caused a service interruption for our customers for about 20 minutes. This blogpost is a short report on the impact and nature of the attack.

SSL certificate chains, intermediate certs by Herman Bos , 15 Apr 2013

Most browser trusted SSL certificates work with intermediate certificates nowadays. The CA only ships the root certificates for inclusion with the browsers and because they do this your certificate can't be verified if you don't include the intermediate certificates in your webserver configuration.

Scan for new hotplug added disks by Herman Bos , 11 Apr 2013

If you add new disks to a virtual machine you don't have to reboot to be able to use them.

Recap2018 by Herman Bos , 10 Dec 2018

Gbp buildpackage / gpg2 by Walter Doekes , 08 Nov 2018

Kubectl / broken terminal / ipython by Walter Doekes , 20 Sep 2018

Vimrc / debian stretch by Walter Doekes , 19 Sep 2018

Core file / docker image / auplink by Walter Doekes , 18 Sep 2018

Ubuntu bionic / crashing gdm / eglgetdisplay by Walter Doekes , 11 Apr 2018

Helperpark 282A
9723ZA Groningen
Telefoon: 050-2103520
Fax: 050-2103527
E-mail: info@osso.nl