Flying Circus

Our Blog

Operations as a Service — musings from our pilots

Support during Easter 2022
written by Christian Theune on 2022-04-07
Support during Christmas and New Year's 2020
written by Christian Theune on 2020-12-23
Support during Easter 2020
written by Christian Theune on 2020-04-06
COVID-19: DevOps-Kummerkasten
written by Christian Theune on 2020-03-16
COVID-19: Digitalisierungs-Notfallangebot für Neuprojekte
written by Christian Theune on 2020-03-16
COVID-19: Homeoffice Kummerkasten
written by Christian Theune on 2020-03-16
Flying Circus & COVID-19 (Corona)
written by Andrea Glodek on 2020-03-12
Our new NixOS 19.03 Platform Is Ready for Production
written by Tobias Stenzel on 2020-02-28
Our new NixOS 19.03 Platform Is Ready for Production
written by Tobias Stenzel on 2020-02-28
Save the Date: Girls'Day 26.03.2020
written by Andrea Glodek on 2020-01-07
Support during Christmas and New Year’s 2019/2020
written by Andrea Glodek on 2019-12-19
31 October 2019 – Holiday Notice
written by Andrea Glodek on 2019-10-29
Hello web,
written by Chris Wolf on 2019-08-19
Hello world!
written by Mohammad Ismail on 2019-08-15
Support during Ascension and Pentecost 2019
written by Andrea Glodek on 2019-05-24
Holiday Notice: Wednesday 1st May 2019
written by Andrea Glodek on 2019-04-26
Support during Easter 2019
written by Andrea Glodek on 2019-04-15
Girls'Day am 28.03.2019 beim Flying Circus
written by Andrea Glodek on 2019-01-15
Support during Christmas and New Year’s 2018/2019
written by Andrea Glodek on 2018-12-20
NixCon talk: Migrating a Hosting Infrastructure from Gentoo to NixOS
written by Christian Kauhaus on 2018-10-25
Holiday Notice: October 2018
written by Andrea Glodek on 2018-10-02
We have moved into our new office
written by Andrea Glodek on 2018-09-03
2018-08-30 – Umzug unseres Rechenzentrums-Labors / Moving our data center laboratory
written by Christian Theune on 2018-08-23
Auf zu neuen Ufern
written by Andrea Glodek on 2018-08-08
2018-05-29 – 2018-05-31: Major data center upgrade
written by Christian Theune on 2018-05-17
Support during Ascension and Pentecost 2018
written by Andrea Glodek on 2018-05-04
Support during Easter 2018
written by Andrea Glodek on 2018-03-26
Retiring our Gentoo platform – Sundown until September 2018
written by Christian Theune on 2018-03-15
Greetings from a new employee
written by Christian Schmidt on 2018-03-07
Improvements in customer support
written by Christian Kauhaus on 2018-02-05
New default: Truncated IP addresses in nginx access logs
written by Christian Kauhaus on 2018-02-05
CPU hardware security issues: Meltdown and Spectre (updated 2018-03-08)
written by Christian Theune on 2018-01-04
Support during Christmas and New Year’s 2017/2018
written by Andrea Glodek on 2017-12-19
NixOS: The DOs and DON'Ts of nixpkgs overlays
written by Christian Kauhaus on 2017-11-07
Announcing fc-userscan
written by Christian Kauhaus on 2017-10-04
Holiday Notice: October 2017
written by Andrea Glodek on 2017-09-27
How to renew Puppet CA and server certificates in place
written by Christian Kauhaus on 2017-09-01
Release 2017_010 with many security updates
written by Frank Lanitz on 2017-05-29
DevOps Sprint -- Save the Date: 13th - 15th September
written by Andrea Glodek on 2017-05-24
Support during Ascension and Pentecost 2017
written by Andrea Glodek on 2017-05-22
Holiday Notice: Monday 1st May 2017
written by Andrea Glodek on 2017-04-28
Self-service User Management
written by Christian Zagrodnick on 2017-04-21
Wie funktionieren Webseiten?
written by Andrea Glodek on 2017-04-20
Support during Easter 2017
written by Andrea Glodek on 2017-04-07
Internal and External Interfaces From an Operations Perspective (long read)
written by Christian Theune on 2017-03-30
Retrospection: Flying Circus at CLT2017
written by Maksim Bronsky on 2017-03-23
Internal team event Friday March 3 - emergency support only
written by Andrea Glodek on 2017-03-01
S3 outage: more diversity needed
written by Christian Zagrodnick on 2017-03-01
Support during Christmas and New Year’s 2016/2017
written by Andrea Glodek on 2016-12-16
How we are improving our infrastructure for better reliability and scalability
written by Christian Theune on 2016-12-01
Dirty Cow: Restarting all VMs
written by Christian Kauhaus on 2016-11-15
Gleichmäßigere Performance virtueller Festplatten durch IO-Limits
written by Christian Theune on 2016-10-13
Introducing IO limits to achieve more uniform virtual disk performance
written by Christian Theune on 2016-10-13
DevOps Autumn Sprint Halle 28th-30th September 2016
written by Andrea Glodek on 2016-09-22
Vulnix v1.0 release
written by Maksim Bronsky on 2016-07-27
Flying Circus on Tour
written by Anja Schmumacher on 2016-07-15
Sneak Preview: Upcoming FC Platform and Infrastructure Features
written by Christian Kauhaus on 2016-07-04
Downloading and extracting files with batou
written by Frank Lanitz on 2016-06-29
PostgreSQL version migration
written by Christian Zagrodnick on 2016-06-23
Save the Date: 28th-30th September
written by Anja Schmumacher on 2016-06-09
Ceph performance learnings (long read)
written by Christian Theune on 2016-05-27
Introducing vulnix - a vulnerability scanner for NixOS
written by Maksim Bronsky on 2016-05-20
Automatic installation of Oracle Java
written by Christian Zagrodnick on 2016-05-12
Thoughts on systems management methods
written by Christian Kauhaus on 2016-05-06
Upcoming public holidays - Ascension and Pentecost
written by Anja Schmumacher on 2016-05-04
Another new crew member: Maksim
written by Maksim Bronsky on 2016-04-15
Auftakt zum ersten “Developer-Workshop” 2016
written by Anja Schmumacher on 2016-04-15
Greetings from our new crew member: Anja
written by Anja Schmumacher on 2016-04-01
Support during Easter 2016
written by Christian Theune on 2016-03-22
Stopover at the Chemnitzer LinuxTage
written by Frank Lanitz on 2016-03-17
Improving Ceph OSD start-up behaviour with vmtouch
written by Christian Kauhaus on 2016-03-11
Developer Workshop 24. Mai 2016 in Halle
written by Andrea Glodek on 2016-03-10
Flying Circus Airmail - February 2016
written by Christian Theune on 2016-02-29
batou - recent improvements and roadmap update
written by Christian Theune on 2016-02-12
Interview with Investforum
written by Christian Zagrodnick on 2016-02-05
OpenSSH Triple 7 Bug -- a good chance to upgrade your keys
written by Frank Lanitz on 2016-01-29
Support during Christmas and New Year's 2015/2016
written by Christian Theune on 2015-12-21
Debugging web application performance with HAProxy – Part 2
written by Christian Zagrodnick on 2015-12-17
Django with batou: The very basics
written by Frank Lanitz on 2015-12-12
Debugging web application performance with HAProxy
written by Christian Zagrodnick on 2015-11-26
Flying Circus Monthly Airmail - November 2015
written by Christian Kauhaus on 2015-11-26
Interview with TKmag
written by Christian Zagrodnick on 2015-11-26
Impressions from NixCon Berlin
written by Christian Kauhaus on 2015-11-17
Announcing our new NixOS-based platform generation
written by Christian Zagrodnick on 2015-11-09
DevOpsDays 2015 Berlin – good principles start gaining ground
written by Alexander Bittner on 2015-10-30
Coming Home: PloneConf 2015
written by Christian Zagrodnick on 2015-10-21
Just entered the Flying Circus: Frank
written by Frank Lanitz on 2015-10-16
Airmail September 2015 - Meet us at Plone Conference Bukarest
written by Christian Theune on 2015-10-06
DevOps-Sprint: Review
written by Christian Zagrodnick on 2015-10-06
Only 3 weeks left until our summer sprint - join us for 3 days of hacking!
written by Christian Theune on 2015-09-08
Flying Circus Monthly Airmail – August 2015 issue
written by Christian Kauhaus on 2015-08-28
Flying Circus Monthly Airmail - July 2015 issue
written by Christian Kauhaus on 2015-08-03
VENOM's little brother is here - another Qemu security upgrade required
written by Christian Kauhaus on 2015-08-03
Flying Circus Monthly Airmail Issue #3
written by Christian Kauhaus on 2015-06-04
VENOM: We need to reboot all VMs
written by Christian Kauhaus on 2015-06-04
Technical Preview: running Flying Circus managed components locally in Vagrant
written by Christian Theune on 2015-05-28
Logjam attack
written by Christian Kauhaus on 2015-05-22
Automatically deleting things — safely and reliably
written by Christian Theune on 2015-04-24
Improving periodic data import jobs in 3 steps
written by Christian Kauhaus on 2015-04-16
The Flying Circus Monthly Airmail - Our new newsletter
written by Christian Theune on 2015-03-26
Upcoming OpenSSL update
written by Christian Theune on 2015-03-19
Support availability during Christmas and New Year's 2014/2015
written by Christian Theune on 2014-12-22
Notes from the Python Unconference Hamburg
written by Christian Theune on 2014-12-01
Upcoming OS update: VMs are frozen for now and will be updated step by step
written by Stefan Wallnhn on 2014-10-29
How we protect against Poodlebleed (CVE-2014-3566)
written by Alexander Bittner on 2014-10-15
Language support: Python, Ruby, and PHP versions after the OS update
written by Alexander Bittner on 2014-10-09
Let's move operations closer to the application
written by Christian Theune on 2014-10-01
How we protect against the ShellShock bug
written by Christian kauhaus on 2014-09-26
PostgreSQL restart policy changed
written by Christian Khauhaus on 2014-09-25
Upgrading the minimum VMs: 5GiB more disk for everyone for free
written by Christian Theune on 2014-09-25
Welcome to the Flying Circus blog - announcing our spin-off
written by Christian Theune on 2014-09-17

Get in touch

Call us or send us an email.

Contact
mail: mail@flyingcircus.io
fon: +49 345 219 401 0
fax: +49 345 219 401 28

Address
Flying Circus Internet Operations GmbH
Leipziger Str. 70/71
06108 Halle (Saale)
GERMANY

Commercial register
AG Stendal as HRB 21169
VAT ID: DE297423633

Managing Directors:
Christian Theune, Christian Zagrodnick

flyingcircus.io — 2016-2021 – Privacy

Our Blog

Support during Easter 2022

Support during Christmas and New Year's 2020

Support during Easter 2020

COVID-19: DevOps-Kummerkasten

COVID-19: Digitalisierungs-Notfallangebot für Neuprojekte

COVID-19: Homeoffice Kummerkasten

Flying Circus & COVID-19 (Corona)

Our new NixOS 19.03 Platform Is Ready for Production

Our new NixOS 19.03 Platform Is Ready for Production

Save the Date: Girls'Day 26.03.2020

Support during Christmas and New Year’s 2019/2020

31 October 2019 – Holiday Notice

Hello web,

Hello world!

Support during Ascension and Pentecost 2019

Holiday Notice: Wednesday 1st May 2019

Support during Easter 2019

Girls'Day am 28.03.2019 beim Flying Circus

Support during Christmas and New Year’s 2018/2019

NixCon talk: Migrating a Hosting Infrastructure from Gentoo to NixOS

Holiday Notice: October 2018

We have moved into our new office

2018-08-30 – Umzug unseres Rechenzentrums-Labors / Moving our data center laboratory

Auf zu neuen Ufern

2018-05-29 – 2018-05-31: Major data center upgrade

Support during Ascension and Pentecost 2018

Support during Easter 2018

Retiring our Gentoo platform – Sundown until September 2018

Greetings from a new employee

Improvements in customer support

New default: Truncated IP addresses in nginx access logs

CPU hardware security issues: Meltdown and Spectre (updated 2018-03-08)

Support during Christmas and New Year’s 2017/2018

NixOS: The DOs and DON'Ts of nixpkgs overlays

Announcing fc-userscan

Holiday Notice: October 2017

How to renew Puppet CA and server certificates in place

Release 2017_010 with many security updates

DevOps Sprint -- Save the Date: 13th - 15th September

Support during Ascension and Pentecost 2017

Holiday Notice: Monday 1st May 2017

Self-service User Management

Wie funktionieren Webseiten?

Support during Easter 2017

Internal and External Interfaces From an Operations Perspective (long read)

Retrospection: Flying Circus at CLT2017

Internal team event Friday March 3 - emergency support only

S3 outage: more diversity needed

Support during Christmas and New Year’s 2016/2017

How we are improving our infrastructure for better reliability and scalability

Dirty Cow: Restarting all VMs

Gleichmäßigere Performance virtueller Festplatten durch IO-Limits

Introducing IO limits to achieve more uniform virtual disk performance

DevOps Autumn Sprint Halle 28th-30th September 2016

Vulnix v1.0 release

Flying Circus on Tour

Sneak Preview: Upcoming FC Platform and Infrastructure Features

Downloading and extracting files with batou

PostgreSQL version migration

Save the Date: 28th-30th September

Ceph performance learnings (long read)

Introducing vulnix - a vulnerability scanner for NixOS

Automatic installation of Oracle Java

Thoughts on systems management methods

Upcoming public holidays - Ascension and Pentecost

Another new crew member: Maksim

Auftakt zum ersten “Developer-Workshop” 2016

Greetings from our new crew member: Anja

Support during Easter 2016

Stopover at the Chemnitzer LinuxTage

Improving Ceph OSD start-up behaviour with vmtouch

Developer Workshop 24. Mai 2016 in Halle

Flying Circus Airmail - February 2016

batou - recent improvements and roadmap update

Interview with Investforum

OpenSSH Triple 7 Bug -- a good chance to upgrade your keys

Support during Christmas and New Year's 2015/2016

Debugging web application performance with HAProxy – Part 2

Django with batou: The very basics