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today's howtos

Submitted by Roy Schestowitz on Wednesday 2nd of March 2022 07:32:18 PM Filed under
HowTos
  • Touch Command on Linux: Tutorial and Examples - Linux Stans

    In this tutorial, we’re going to show you what the touch command is, how to use it, and include practical examples of using the command.

    Unlike other commands that you should never run on Linux, the touch command is actually recommended and often used by everyone on Linux.

  • Access and modify virtual machines disk images with libguestfs tools

    In a previous article, we saw how to create kvm virtual machines from the command line; in this tutorial, instead, we learn how to access and modify virtual machines disk images, using some utilities which are part of the libguestfs package on the most commonly used Linux distributions. Those tools let us perform a variety of tasks.

    We will focus on some of them, like virt-filesystems and guestmount, which can be used to list filesystems existing on guest disk images, and mount them on the host system, respectively.

  • Terraform Variable with Example

    We learned about the terraform variable in the previous article. Let’s start with an example.

    Let’s set the terraform provider to AWS with the access key, secret key, and region where we wish to build these resources, as usual.

  • Install OpenVAS – Open Vulnerability Assessment Scanner

    Today you will learn how to install OpenVAS.

    OpenVAS is a full-featured vulnerability scanner. Its capabilities include unauthenticated and authenticated testing, various high-level and low-level internet and industrial protocols, performance tuning for large-scale scans and a powerful internal programming language to implement any type of vulnerability test.
    The scanner obtains the tests for detecting vulnerabilities from a feed that has a long history and daily updates.

  • Suricata Network IDS integration with WAZUH

    This post is about Suricata Network IDS integration with WAZUH.

    Wazuh is an excellent HIDS (Host-based Intrusion Detection System) among other things. In addition to it’s rule-based analysis of log events from agents and other devices, it also performs file integrity monitoring and anomaly detection. This provides a great deal of insight into the security of your digital assets. However, some security issues are most successfully detected by inspecting a server’s actual network traffic, which generally is not accounted for in logs. This is where a NIDS (Network Intrusion Detection System) can provide additional insight into your security in a way that is highly complimentary to the HIDS functionality in Wazuh.

    Suricata is one such NIDS solution, which is open source and can be quickly deployed either on dedicated hardware for monitoring one or more transit points on your network, or directly on existing Unix-like hosts to monitor just their own network traffic. Because Suricata is capable of generating JSON logs of NIDS events, it integrates beautifully with Wazuh.

  • Terraform's Variable

    The customer receives a response as soon as he opens the URL. The request then uses a mapping of IP addresses from DNS records to identify its destination, landing on a server that owns this IP, and the server processes to give a response, which is then transmitted back to the request’s origin. Because we’re using Amazon Web Services (AWS), we’ll use an EC2 instance. In production, simply having an EC2 instance that can process requests is insufficient. Virtual private cloud plays an important role to separate networks and other virtual networks from the cloud(AWS).

  • Why should you use Terraform and how does it work?

    Terraform core works with two different input sources.

    Terraform configuration is the first source. You specify what needs to be created or provisioned in this section. Terraform’s second source for keeping up-to-date configuration files is state.

    As a result, terraform core analyses the data and implements a plan for finishing the work at hand. It compares the state, what is the present state, and the configuration you want as a final result. It decides what’s to be performed in accomplishing the configuration file’s desired state. To develop or provision the infrastructure, it estimates what has to be created, updated, and destroyed.

  • How to Open Ports in Linux

    Need to connect to an outside PC or server—or need another PC or server to connect to you? If you’re running Linux, you’ll need to make sure the right port is open.

    While other operating systems usually have some graphical tool for this, Linux isn’t so simple. We’ll walk you through how to open ports in Linux below.

»

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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