Linux

Overview The following post will demonstrate the steps how to create groups in Linux as well as how to delete groups in Linux and how to add user to the group and how to remove a user from the group. This is a continuation of our Linux user management post series. In one of our earlier posts, we covered the process how to create and delete users in Linux via terminal and how to add sudo privileges to the user(you can check out these procedures here - add sudo privileges, create a user). ...

Install Zabbix on Debian 11 Overview In this article we will cover the process on how to install Zabbix on Debian 11. Zabbix is an open source monitoring solution for diverse IT components, including networks and network devices, virtual machines, servers, and cloud services. Zabbix provides monitoring metrics for most of the components, such as CPU usage, network utilization, RAM and disk space consumption, temperatures, etc. Software can monitor operations on Linux, Mac OS, Solaris, HP-UX natively, but for Windows monitoring usage of agents is needed. ...

Overview In this article we’ll be demonstrating multiple methods on how to create a new sudo user in Linux and how to delete a sudo user in Linux too. Knowing how to create a user in Linux is one of the skills a Linux user(admin) should know and still one of the most important skills as well to have(user management). Reason behind this is, because in every multi user operating system(Linux as well) there are and there should be a sets of different user permissions and different user groups. This is of course because of security reasons. ...

Secure Apache2 with Let’s Encrypt SSL on Debian 10/11 Overview In the following post, we’re going to showcase the procedure how to Secure Apache2 with Let’s Encrypt SSL on Debian 10(this procedure works on Debian 11 as well). The post will showcase the scenario, where we need to install certbot on our Debian machine and obtain the SSL certificate from Let’s Encrypt, setup the automatic HTTPS redirection and test out the certificate renewal as well. Here we already have a Debian machine with Apache preinstalled on which we’re going to go through the steps on how to secure Apache2 with let’s encrypt ssl. ...

How to Install Wireguard on Debian Overview On this post we are going to showcase the steps how to install Wireguard on Debian(this procedure works on Debian 10 and also on Debian 11). Wireguard is one of the well-known and a great open-source VPN solution. The scenario of our process on how to install Wireguard server is going to be performed as following: Deployed Debian 10(Debian 11) Linux machine with firewall(you can use UFW or IPTABLES. IPTABLES is used in this example). We’ll be using a Wireguard installation script from Github made by angristan. The Installation process done manually is not difficult but it can be time consuming(especially if you miss-configured a step which can consume more time by troubleshooting). For the simplicity and ease of setup we’re using the angristan’s script(big thanks to him for sharing the script). Small side note - Besides this method, we also covered the procedure where install Wireguard server using Docker, which can be checked out on this post. ...

Overview On this post we are going to showcase the steps how to install OpenVPN server on Debian 10(this also works on Debian 11). OpenVPN is one of the well-known and a great open-source VPN solution. The scenario of our process on how to install OpenVPN server is going to be performed as following: Deployed Debian 10(Debian 11) Linux machine with firewall(you can use UFW or IPTABLES. IPTABLES is used in this example). We’ll be using an OpenVPN installation script from Github made by angristan. The Installation process done manually is not difficult, it actually requires many steps and can be time consuming(especially if you miss-configured a step which can consume more time by troubleshooting). For the simplicity and ease of setup we’re using the angristan’s script(big thanks to him for sharing the script). What’s also worth mentioning is, OpenVPN server can also be deployed as a Docker container. You can check out the setup process here - LINK. ...

How to install KDE plasma on Debian 10/11 Overview This article will cover the steps how to install KDE plasma on Debian 10(this method also works on Debian 11). Bur before we continue with the installation, there are few points worth noting: Installing multiple Desktop Environments is not without risks. It requires time and some in-depth GNU/Linux knowledge in order to make ti all working smooth and to troubleshoot with ease, if some issues do come up. Here are some things that can pop-up when running more than one DE: ...

Overview In the following post we’re going to cover the procedure how to secure Nginx with Let’s Encrypt SSL on Debian 10 machine(This procedure can be applied on Debian 11 as well). The post will showcase the scenario, where we need to install certbot on our Debian machine and obtain the SSL certificate from Let’s Encrypt, setup the automatic HTTPS redirection and test out the certificate renewal as well. Here we already have a Debian machine with Nginx preinstalled on which we’re going to go through the steps on how to secure nginx with let’s encrypt ssl. ...

Overview This article will showcase the procedure how to install Wireguard VPN server with Docker. In another words, we’ll deploy Wireguard container(as a Docker container) on our host macine.Wireguard is another good VPN option besides OpenVPN. Wireguard doesn’t have an official Docker image yet, so we’ll be using the Docker Wireguard image from linuxserver.io - This exact image used in this post: Docker Hub (and Github page) This procedure is also covered with OpenVPN. You can check it out on this post. ...

Install Wordpress with remote database on Debian Overview In the following post we’ll cover the scenario where we’re going to install Wordpress with remote database on Debian. In other words, we’ll have an environment were we will have two separate servers, one which will have only Wordpress installation(meaning it will host the website only) and the other will have only the database(act only as a database server). There are many beneficial reasons why this kind of environment is setup - one being the ease of website maintenance and database maintenance, performance increase(meaning the wordpress since it’s not dependent on one server, it will take much less resources). ...

Overview The following post will showcase the steps how to install Wordpress with Nginx on Debian 10 and on Debian 11 as well. On a single Debian server we will install and configure the LEMP stack(Nginx, PHP and MariaDB) and at the end install and run Wordpress. In other words, our single Debian server will run the Nginx web server, the MariaDB server and run Wordpress altogether. Wordpress can also be setup and run on multiple separate servers(separate web server and separate database server). If you need setup like that(with a remote database), you can check how to setup it on this post. Another method of installing and running Wordpress is with Docker, which is covered on this post. ...

Setup Kubernetes cluster with Rancher Overview In this post we will go through the process how to setup Kubernetes cluster with Rancher. Kubernetes is an amazing technology and one of the best way to orchestrate your containers. But sometimes, if you have a lot of containers or planning to host a lot of applications, it can be a bit easier to manage all those with a GUI dashboard, like Kubernetes dashboard. In this article we will cover the Rancher software, how to install it on Debian 10 Buster and how to setup Kubernetes cluster. This method can be done on Debian VM or on a bare metal machine and it also works on Ubuntu. ...