OwnCloud Files not showing up in the Browser
In case you have uploaded some files to your OwnCloud, no matter how, but they not showing up in the…
Linux Sudoers (sudo command) File
Below I will summarize some information about the Linux sudoers file. The file will grant priviliges to users and groups…
Join Ubuntu to an Active Directory Domain using SSSD (System Security Services Daemon)
In this post I want to set up the sssd daemon on Ubuntu to join an AD domain and authenticate…
Manage Systemd Services with Systemctl on Ubuntu
Systemd is primarily an init system for Linux operating systems. It’s main task is to initialize the components that must…
Set up DMARC (verification) for Postfix on Ubuntu
Last week I wrote a post about how to set up SPF and DKIM for Postfix on Ubuntu, today I…
Set up Ubuntu’s Built-In Firewall
Ubuntu’s built-in firewall is named ufw (uncomplicated firewall). Actually Ufw is just an utility which makes it easier to configure…
Set up ownCloud on Ubuntu
Today I wanna show how to set up ownCloud (release 10.11) on Ubuntu 22.04.1 LTS. ownCloud is an open-source file sync,…
Set up SSH private/public Key Pair without using Password Authentication on Linux
SSH keys are not only more convenient but also improve the security in contrast to the password authentication, provided the…
Set up SPF and DKIM for Postfix on Ubuntu
In this post I want to show how to set up the SPF (Sender Policy Framework) and DomainKeys Identified Mail (DKIM)…
Enable TLS for Postfix on Ubuntu
Regarding the Postfix documentation, TLS support is turned off by default, so you can start using Postfix as soon as…
