Sebastian Mogilowski's Blog

Linux

Securing SSH with FIDO U2F (YubiKey) on Debian

  • 8. März 2021
  • Linux / Systemadministration
  • 1 Comment

FIDO devices are supported by the public key types "ecdsa-sk" and "ed25519-sk", along with corresponding certificate types. This is supported in OpenSSH from version 8.2. Debian Buster (stable) delivers version…

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Ubuntu Yubikey U2F Auth

  • 16. Februar 2021
  • Linux
  • 0 Comments

Yubikey is a hardware security device. You can use it for two-factor authentication. Here is an example setup for two-factor login for Ubuntu Linux. I recommend to use at least…

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Installing Galera Cluster with MariaDB

  • 4. Juni 2020
  • Linux / Systemadministration
  • 1 Comment

Galera give you some nice cluster features. Like true Multi-Master configuration, synchronous replication, conflict detection and impromes the maintenance of your MariaDB servers with automatic provisioning, node isolation and rolling…

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Docker on Debian 10 managed with Cockpit

  • 7. Mai 2020
  • Linux / Systemadministration
  • 0 Comments

With Cockpit, you can also manage docker containers. Here is a small example setup: Install Docker apt install apt-transport-https ca-certificates curl gnupg2 software-properties-common curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -…

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Servermanagement with Cockpit on Debian 10

  • 7. Mai 2020
  • Linux / Systemadministration
  • 2 Comments

Cockpit is an easy and simple remote management software for Linux servers. It is now included in Debian 10 Buster.It runs on several Linux distributions, including Debian, Ubuntu, Fedora, CentOS,…

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Your own search engine with Apache Nutch 1.16 on Debian 10

  • 9. April 2020
  • Allgemein / Linux / Systemadministration
  • 1 Comment

In 2016, I wrote an article for the Linux Magazine about an personal search engine: * Suchmaschinenserver im Eigenbau (Ausgabe 02/2016)* Go Find It (Issue #186 / May 2016) A…

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Setup Windows 10/Server 2016 RDP to work with Guacamole 1.1.0 (Part 2)

  • 24. März 2020
  • Linux / Systemadministration
  • 1 Comment

Currently Guacamole 1.1.0 is not compatible with the default encryption of Windows. If you disable NLA it should work. Open Registry editor 'regedit' and make the following settings: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp]…

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Install Guacamole 1.1.0 on Debian 10 with DB authentication (Part 1)

  • 23. März 2020
  • Linux / Systemadministration
  • 7 Comments

I started with a fresh Debian 10.3.0 with latest patches. I just installed vim and open-vm-tools because my server runs on an VMWare cluster 1. Install Tomcat 9 apt install…

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Apache Nutch with Solr on Debian 9 or Ubuntu 17.04

  • 4. Mai 2017
  • Linux / Systemadministration
  • 0 Comments

About one year ago I wrote an article for Linux Magazin about a personal search engine: * Suchmaschinenserver im Eigenbau (Ausgabe 02/2016) * Go Find It (Issue #186 / May…

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Fixing broken Thecus N8800PRO NAS or install Linux on Thecus N8880PRO NAS

  • 22. Juli 2016
  • Linux / Systemadministration
  • 5 Comments

A few days ago one of my old Thecus N8800PRO NAS storages stopped working. Instead of throwing it away i decided to take a closer look at it. First i…

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