Language Selection

English French German Italian Portuguese Spanish

today's howtos

Filed under
HowTos
  • How to Install PostgreSQL 14 in Ubuntu 20.04

    There are specific database software attributes that make PostgreSQL stand out against other database platforms. The first and obvious attribute is its open-source nature.

    This PostgreSQL trait puts it on continuous developmental milestones. Both its community and developers seek to evolve PostgreSQL into an enterprise-class performing software.

    Existing PostgreSQL community platforms help users deal with emerging bugs, and also understand its various functionalities and use cases.

    Other PostgreSQL strengths are in its unique functions like Store Procedure, Diverse Indexing Techniques, Flexible Full-text search, Diversified Extension Functions, and Diverse kind of Replication.

  • How to upload an ISO image to the Proxmox Server - Unixcop the Unix / Linux the admins deams

    Hello, friends. We have already shown you how to install Proxmox and we noticed that the process is easier than you might think. Now I will show you how to upload an ISO image to the Proxmox server. To do this, I will use the graphical method or through the terminal.

    With Proxmox we will be able to virtualize systems professionally and to do many things more like cluster, backups, and others. However, to start with the virtualization we have to have an ISO image of the system.

    So, with a server that is far away from our location, how to do it? How to have the ISO image on the server so that Proxmox can manage it? Well, that’s what I will show you today.

    Let’s go for it.

  • How to install FreeOffice 2021 on Ubuntu 20.04 Linux - Linux Shout

    One of the best free alternatives to Microsoft Office is FreeOffice, developed by a German software company- SoftMaker. Recently, they have upgraded their Office suite to version 21. And here we learn the steps to install FreeOffice 2021 version on Ubuntu 20.04 Linux using the command terminal.

    This free office suite is a part of the commercial one from the same developers known as SoftMaker Office 21 (also available for Linux), of course, the premium will have more features but that doesn’t mean the free version- FreeOffice 2021 deprives to full fill all daily office documents (MS-Word alternative) related requirements. It offers a Microsoft office ribbon-like interface and three modules- TextMaker 21 to create documents; PlanMaker 21 to create sheets (Excel alternative) and Presentations 21 for making slides like MS-Powerpoint.

  • How to verify checksum on Linux | FOSS Linux

    A checksum is small-sized data obtained from a block of digital data used to detect errors. The checksum value uses a transmission message to represent bit numbers. Extensively, it has been used and still is in use by IT experts to detect high-level errors that might happen during data transmission. Before transmission, every bit of data is assigned a checksum value after running a cryptographic hash function.

    Checksum sometimes is termed as a hash sum or hash value. It is a long data string that contains various numbers and letters. They work by providing the receiving end information about the data transmission to deliver the full range of data. Checksum acts as a fingerprint for files since it contains a long string of numbers and letters. It aids in obtaining the number of bits included in a transmission.

    Suppose the checksum value calculated by the end-user is slightly different from the original checksum value of the file. In that case, it alerts all parties involved in the transmission that a third party corrupted the file. The receiver can then investigate what went wrong or try re-downloading the file. Standard protocols used to determine checksum numbers are the transmission control protocol (TCP) and the user diagram protocol (UDP). TCP is more reliable for tracking transmitted packets of data, but UDP may be beneficial to avoid slowing down transmission time.

  • How to create and extract cpio archives on Linux Examples

    Although the cpio archiving utility is nowadays used less than other archiving tools like tar, it is still good to know how it works, since it is still used, for example, to create initramfs images on Linux and for rpm packages, which are used mainly in the Red Hat family of distributions. In this tutorial we see how to create and extract cpio archives using the GNU cpio utility, and how to obtain a list of the files they contain.

  • How to hash passwords on Linux

    Passwords should never be stored as plain text. Whether we are talking about a web application or an operating system, they should always be in hash form (on Linux, for example, hashed passwords are stored in the /etc/shadow file). Hashing is the process through which, by the use of some complex algorithms, a password is turned into a different string. Such process is one-way: there is no way to revert an hashed password to its original, plain text form. Hashing often involves the use of random data as additional input for the hash algorithm, so that the same password, hashed two times, doesn’t produce the same result. This random data is called salt. In this tutorial we explore some methods we can use to hash passwords on Linux.

  • A Decade with Jekyll

    Today I’d like to look back on my experience with Jekyll, the static site generator (SSG) that I’m using to publish this site and my other blogs Meta Redux and Emacs Redux. Back in the day Jekyll was a trend-setter - it basically defined the SSG category and every subsequent tool in it was compared to Jekyll. A lot has happened since 2011: [...]

  • ZFS Storage pool layout: VDEVs

    The storage pool of ZFS constitutes one or more virtual devices that are, in general, called vdevs. A Vdev is either a single disk, or two or more disks which mirrors each other, or a group of disks that organizes together. The RAID layout sets on each vdev as opposed to the storage pool. Similarly, data that is present in the storage pool strips across all vdevs which also means that the loss of one vdev would result in pool failure.

  • [Old] The Basic Guide to Working with ZFS

    RAID-Z1 replaces RAID5 in a traditional setup. Performance is pretty equivalent, but the benefit is in some of the features. As mentioned before, you get healing or at least detection of bit rot or a bad sector, it’s a lot easier to set up with mixed drives, etc. RAID-Z2 (equivalent to RAID6) performs better from my experience than any traditional RAID6 setup I’ve used with equivalent drives on an equivalent machine.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

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.