Category Archives: Linux

Everything about Linux, doesn’t matter which version.

Happy Backup Day

Finally I can write my happy “backup day” blog post, after several years of problems with my own backup. Even when it is a couple of days to late 😉 The last weeks I create a new backup setup and … Continue reading

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Centos and the end of a horrible year (Part II)

2020 will be for most people one of the worst years in their living memory. The world is under lockdown because of SARS-Corona Virus 2 or better Covid-19. As I’m a member of a risk group, my social life is … Continue reading

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Graylog or the end of a horrible year (Part I)

2020 will be – for most people – one of the worst years in their living memory. The world is under lockdown because of SARS-Corona Virus 2 or Covid-19. As I’m part of a risk group, my social life is … Continue reading

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Hey, I just need a virtual Machine with …

If you just need a fast (manual) installation with a certain OS. Instead of downloading the ISO and than start the install. Just use virt-install that will do the download, startup etc. for you. Yes, I know there are better … Continue reading

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Centos 7 to 8 Update

WARNING DANGEROUS! Disclaimer: This is not supported and it can breaks you computer or delete your data. You have been warned. I take no responsibility if it breaks. Double check that your backup is working. Past My main server was … Continue reading

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Cool new tools

Just back from my vacation I learned two cool new tools on the first day. Of course both are in EPEL and Fedora. The Silver Search: ag $STRING is an alternative to grep -ir $STING . But a lot of … Continue reading

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Moving my Server with less than a second downtime

As I’ve written in my previous post, I moved to a new Hetzner Box. This is how I setup my virtual Host and how I moved my server, including all virtual machines, to the new data center with a downtime … Continue reading

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lmsensors for Monitoring a Hetzner EX41 with nct6775 on Centos7

Hi, I recently rented a new Hetzner Box to replace my old. I moved from EX40 to EX41 and saving even some money every month :-). Every thing went smooth, but the sensors did not work. I had to use … Continue reading

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FreeNAS and check_mk

Hi, I’m setting up two FreeNAS Server for Backup and Archiving and I really like FreeNAS 11. Thank good I didn’t have time to update it to FreeNAS Coral. 🙂 But I’m using check_mk for monitoring and I would like … Continue reading

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qemu/kvm libvirt and trim with Fedora 25

Hi, after more then 10 years of using VMWare Workstation (Starting with VMWare Workstation 5). I’m in the process of moving to KVM/libvirt, but I want to use qcow2 with trim support. I’m using Fedora 25 with virt-manager to create … Continue reading

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