Category Archives: Linux

Automate let’s encrypt with systemd timer

A long long time ago I wrote a blog post about let’s encrypt automation with systemd timers that triggers letsencrypt: https://blog.bastelfreak.de/2016/05/lets-encrypt-automation-the-awesome-way/ Much changed this 2016. letsencrypt CLI is now called certbot, it can do auto renew via it’s own service … Continue reading

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Vox Pupuli Tasks – The solution to manage your git modules!

Who is not aware of the following problem. It’s Sunday afternoon, you’re bored. You want to do something useful, you want to contribute to the community – you want to review a pull request! This might be a more or … Continue reading

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Dovecot: Apply sieve filter to existing emails

I recently restructured my email setup and updated my sieve filter (server side email filtering). I now have a sieve configuration file that’s way stricter. Many of the emails in my INBOX would now be sorted into subfolders, but Dovecot … Continue reading

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Arch Linux installation guide

A long time ago I wrote a blog post about installing Arch Linux: I’m aware of the fact that there isn’t one definitive guide for installing it. This highly depends on your hardware, your use case for the system and … Continue reading

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Vox Pupuli – Code of the Week 2

This is a new blog series that we would like to introduce. At Vox Pupuli, we receive many Pull Requests. We receive so much awesome code, that isn’t really appreciated. In the past, some of our members sent out tweets if … Continue reading

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Thunderbird: Hide local hostname in mailheaders

By default, thunderbird uses the local hostname within the SMTP-Submission dialog with the mailserver. There might be situations where you have a hostname that exposes private data, like a company name. Sometimes this is very helpful for debugging, but sometimes … Continue reading

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Vox Pupuli – Code of the Week 1

This is a new blog series that we would like to introduce. At Vox Pupuli, we receive many Pull Requests. We receive so much awesome code, that isn’t really appreciated. In the past, some of our members sent out tweets … Continue reading

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Short Tip: Dealing with FreeBSD for noobs

I had the pleasure to work with FreeBSD again in the past week. I have not touched it in over a year and would consider myself a Linux-only person. I designed a new backup infrastructure which requires a FreeBSD server. … Continue reading

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Short Tip: Install shellcheck on an outdated CentOS

I’ve to install shellcheck on a CentOS 7 box, this is the latest CentOS version. The tool is a great linter for bash scripts, which I want to integrate into our CI pipeline. shellcheck isn’t packaged so I will build … Continue reading

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Short Tip: Installing msgpack on outdated boxes (ruby1.9.1)

I’m using msgpack to serialize the data between my puppet agents and the masters. Recently I had to puppetize an old Debian Wheezy box. I’ve to install msgpack in advance: # gem install msgpack Building native extensions. This could take … Continue reading

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