08 Jan 2023 >> Migrating Mastodon storage to S3-compatible - A note describing how to migrate Mastodon storage to a S3-compatible service and enable CDN for fast access and cache
05 Jan 2023 >> Unmounting QNAP system volume to perform e2fsck - A note about performing a maintenance of storage volumes on QNAP devices
29 Dec 2022 >> Mastodon performance tuning / postgres + pgpool - A note explaining on of performance tuning activities I did recently on my Mastodon instance
02 May 2022 >> How to connect to Extreme Networks Summit X450a-48t - using serial, for maintenance jobs
01 May 2022 >> Problems with imports using bitnami/mariadb - working around problems with timeouts during importing databases
12 Apr 2022 >> CoreDNS problems with Mikrotik router - history of debugging and solving problems with UDP datagrams size
17 Mar 2022 >> Testing MariaDB/Mysql backups restoration in Kubernetes - A boring article describing how to automate testing of data recovery
14 Jan 2022 >> A curious case of MariaDB on Longhorn/K8S
03 Jan 2022 >> ipcalc-contains - Verify if a network contains an IP address
12 Jan 2021 >> Replacing provider in Terraform - When and how to use Terraform replace provider feature
17 Jun 2019 >> Site Reliability Engineering talks - A few words about SRE related talks I gave recently
07 Apr 2019 >> Recap from 16th Linux Session @Wrocław - Summary from my stay @Wrocław during yet another great conference
01 Mar 2019 >> More about containers security - Summary from my OWASP Poland / Kraków talk about Linux containers
16 Feb 2019 >> Coredump conference talk - Summary from talk I gave about Spring Cloud Config server implementation @Codewise
15 Feb 2019 >> Devopsdays Warsaw one more time - A short summary from talk I gave about history of Linux containers
14 Feb 2019 >> MariaDB multi master replication - about connecting one slave to two different master servers.
08 Dec 2018 >> Override DNS records with BIND and Response Policy Zones - How to override any DNS records fom public DNS servers using your local DNS server
04 Feb 2018 >> Minecraft, Python and Fedora - A story about scripting Minecraft with Python under Fedora
17 Jan 2018 >> Devops meetups @Kraków - Short info about my presentations during Devops meetups @Kraków
16 Dec 2016 >> systemd 231 in Centos 7 thx to Facebook - guys from FB-Engineering shared what they were talking about during systemd.conf
14 Dec 2016 >> Python + UnitTest + cProfile + Mock - Story about tracing root cause of unit tests running veeery slow
11 Dec 2016 >> Coding katas on codewars - A frustrating hobby
30 Nov 2016 >> Wrocław devops meetup recap - a few words about my last talk
29 Nov 2016 >> Enabling TAG feeds - I've enabled RSS/ATOM feeds for tags!
27 Nov 2016 >> systemd workshops recap - how did it go?
21 Nov 2016 >> Devops meetup @Wrocław - I'll give a talk about systemd during next Devops meetup @Wrocław
14 Nov 2016 >> Working on blog - Boring entry about changes on this blog
29 Sep 2016 >> systemdconf(2): 1st day / workshop summary - Summary from 1st day of systemdconf 2016
28 Jun 2016 >> Handling timeouts in Ansible AWS modules - Couple words about working with AWS timeouts in Ansible
27 Jun 2016 >> Working with virtualenv and Ansible - Short story about hacking Ansible && virtualenv
21 Dec 2015 >> Fixing text highlighting in tmux/man/less - Ansible role providing fix for a nasty tmux issue
27 Nov 2015 >> Containers do not contain - Slides from my last talk I gave during Devopsdays Poland / Warsaw
26 Nov 2015 >> Autumn conferences recap - A short recap from the Pycon.cz, systemd.conf and Devopsdays Warsaw 2015 conferences
26 Mar 2015 >> About cultural change w/Devops - Embrace the Devops
14 Mar 2015 >> Cheap SSD arrays for Continuous Integration - Building cheap SSD arrays for DevOps purposes
18 Feb 2015 >> Dracut, netboot and default gateway in RHEL/CentOS 7 - How to setup default gateway in CentOS/RHEL 7 w/dracut in use
15 Jan 2015 >> Linux Kernel Networking book - Great book about architecture of network stack in Linux Kernel
20 Nov 2014 >> GIT: clone only one file - How to checkout only one file from the repo without cloning all the repo?
19 Nov 2014 >> Poor man's VIM sessions - How I handle sessions in VIM
19 Nov 2014 >> Tmux: join-pane - Moving panes between windows
16 Nov 2014 >> Piwik! - Google Analytics to Piwik migration
10 Nov 2014 >> Orchestrating Docker containers at scale - slides from Linux Autumn 2014 - Slides from my last talk I gave on Linux Autumn 2014 conference
29 Oct 2014 >> Remark - Write your presentations in Markdown!
27 Oct 2014 >> Focus - About focusing on your work
22 Oct 2014 >> Isolation - Why we should isolate Linux containers
14 Oct 2014 >> Invitation for Linux Autumn 2014 - Come get some! Docker and cluster management included!
12 Sep 2014 >> Ansible Playbook for favtools - Ansible-playbook for installing my favorite sys-tools on Fedora/Centos
02 Sep 2014 >> DNS views in BIND - How to configure BIND DNS server so it can provide different views of zones for different groups of users?
20 Aug 2014 >> Lectures during holidays - Books I read during this holidays
18 Aug 2014 >> Network Warrior - A few words about Network Warrior e-book
29 Jul 2014 >> Creator Bias - Quote of the day
12 May 2014 >> Invitation to AtmosphereConf
10 May 2014 >> node.js security slides from SEConference 2014
09 Apr 2014 >> 11 Linux Session recap - a few words about great IT event
16 Mar 2014 >> Docker vs LXC/Ansible?
06 Mar 2014 >> Infosec meetup invitation
29 Dec 2013 >> Changing the World One Line of Code at a Time
01 Dec 2013 >> KVM L2 filtering / virsh nwfilter
10 Nov 2013 >> Adding Python support for Ganglia - gmond on Centos / RHEL - Spooky story about Ganglia
13 Oct 2013 >> Linux Autumn 2013 – recap
09 Aug 2013 >> Ganglia, multicast && KVM on CentOS
05 Aug 2013 >> MySQL HA
24 Jun 2013 >> Linux for Game Development
01 Jun 2013 >> Google Reader is dead. What now?
11 May 2013 >> DNS resolution problem – dig working, ping not
03 Jan 2013 >> Installing KVM guest OS via VNC over SSH tunnel
23 Dec 2012 >> How to change OVH kernel to normal Centos kernel
17 Sep 2012 >> Safe WordPress management via SSL / HTTPS
14 Sep 2012 >> Short brief from LinuxCon Europe 2012 / Barcelona
05 Jul 2012 >> Lighttpd expire.url mixed entries
04 Mar 2012 >> Dou you kanban?
13 Jan 2012 >> Digging know how (howto)
11 Jan 2012 >> Wacom Bamboo Fun in Fedora 15
08 Jan 2012 >> Postfix: Backup MX - howto
06 Jan 2012 >> MySQL statement based replication with triggers, events, procedures, functions and variables - howto
28 Dec 2011 >> MySQL tunneling via SSH and error “channel: open failed: connect failed: Connection refused”
24 Dec 2011 >> MySQL replication over SSH tunnel
09 Dec 2011 >> Calculating file size in bash
07 Dec 2011 >> Grep is your friend
05 Dec 2011 >> Hello there! - Welcome