Category: Admin’s Little Helpers

chroot and serial console to fix ubuntu distro upgrade gone wrong

I had to fix a do-distro-upgrade from 16.04 to 18.04 due to a severed ssh connection, and no screen running (apparently earlier distro upgrades used screen to prevent this kind of problem) the machine as a PCengine apu2, so no video. also, the root file system is sitting on a miniPCI ssd. eventually, my thinkpad

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Install and monitor skypool’s Nimiq client via ansible playbook, systemd and ruby & cron

INTRODUCTION This is a short entry to document installation and monitoring of the skypool nimiq client. The Nimiq network is a decentralized payment network that runs in the browser and is installation-free. Personally, i believe that the Litecoin and Ethereum projects have been so far able to generate a strong economy around them, however, projects

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Quick way to forward mails via postfix

Thanks to Assuming you’re running Postfix, it’s as simple as the steps below First we make sure the virtual mappings file is enabled vim /etc/postfix/ # Scroll down until you find virtual_alias_maps # Make sure it reads something like virtual_alias_maps = hash:/etc/postfix/virtual # We also need to make sure the domain is enabled

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How to create a self-signed (wildcard) certificate

This is a quick step to generate self-signed certificate : openssl genrsa 2048 > host.key openssl req -new -x509 -nodes -sha1 -days 3650 -key host.key > host.cert #[enter * for the Common Name] openssl x509 -noout -fingerprint -text < host.cert > cat host.cert host.key > host.pem chmod 400 host.key host.pem from here