Category Archives: Linux

DRY – Don’t Repeat Yourself

Don’t Repeat Yourself – This is an important mantra, I’m trying to work like this for the past years, but the fancy abbreviation never came up my mind, I just found it online. What does it mean? We system administrators … Continue reading

Posted in 30in30, General, Linux, Puppet | 1 Comment

Installing pry on verrrrry old systems

Everybody loves pry. If you don’t know it: pry is an interactive ruby shell, like irb, but nicer (it hase more colours![and other cool features]). I’ve got a few old CentOS 6 nodes with a very old ruby version: # … Continue reading

Posted in 30in30, General, Linux, Short Tips | 1 Comment

Fixing a messed up git directory

Following situation: You have got a cloned repository in your home directory, you noticed that something changed upstream und you want to get all the fancy changes. You do a: to get the latest tag. What you didn’t check: What … Continue reading

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How to be a good Admin/DevOps/IT person

There are two types of system administrators/DevOps/admins/whatever, the first group has a normal 9-5 job, they stop thinking about IT after work, it is a normal job for them. Then there is another group, these people really love their job, … Continue reading

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#puppethack is coming again!

The event description: ########### Join us for #puppethack, our online puppet community hack day, on December 15th! #puppethack is a collaborative, relaxed online puppet community hack day. It will be an opportunity for Puppet community members and Puppet Labs employees … Continue reading

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Augeas Bug while playing with ” in /etc/default/grub

Today seems to be the day of buggy software. I am using the Puppet module herculesteam/augeasproviders_grub to manage entries in /etc/default/grub on Debian and CentOS systems, here is an example: This should result in the following line in /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT=”nomodeset … Continue reading

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Why Archlinux is awesome!

Arch, Arch Linux, Archlinux, all is possible to refer to this project (Arch Linux is correct). This is a rolling release distribution, which means that there aren’t any Major releases. A Software maintainer creates a new release, for example Nmap … Continue reading

Posted in 30in30, General, Linux | 1 Comment

Link collection of the (last) week(s)

Some interesting and important happenings and things I found in the past week (and prior): Differences between shell types + their workflow Puppet 4.3 got released! 2.2.5 New Nmap! after 3.5 years of development Commitmas is comming! (still thinking about … Continue reading

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Optimized git workflow for rapid deployment

legacy git workflows There are many common ways of using git, for example the YOLO method where everybody directly pushes into his master branch. This is a common workflow but well… There is another approach, for example used by the … Continue reading

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What is Puppet-Community?

I’m a Puppet-Community member since the 31. of August 2015. Since than, a few colleagues asked me what we do: In my opinion, our work is split up into three parts: Maintain so many different tools and plugins for the … Continue reading

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