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HowTos

Virtual Users And Domains With Postfix, Courier And MySQL (CentOS 5.1)

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HowTos

This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database.

some howtos:

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HowTos
  • Using a Bluetooth phone with Linux

  • Encrypt A File with GPG
  • Schedule And Automate tasks in Ubuntu
  • OOo: Doing page numbers with alternating pagination
  • Securing your VNC connection using SSH
  • Filter mail with powerful procmail
  • Create a Search Bar for Epiphany
  • Backing up a MySQL Database Using Cron
  • How To: Automate SSH Sessions Without Passwords
  • HowTo Backup and Restore Partitions Using CloneZilla or Partimage
  • Real world Linux programming
  • HowTo: Install 113 Amazing Fedora Games, Parts 2-8
  • Quickzi: Keep mounted drives off the Ubuntu Desktop

How To Install Picasa 2.7 on Ubuntu 7.10 Gutsy Gibbon

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HowTos

phorolinux.com: Google has released Picasa 2.7 Beta for Linux. This HOWTO shows how you can install Picasa 2.7 Beta on Ubuntu 7.10 Gutsy Gibbon.

Playing DVDs in Ubuntu Gutsy

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HowTos

limulus.wordpress: The only real problem he had was watching a DVD. When you pop it into the drive in Ubuntu, Totem (the default media player) gives a rather unhelpful error message. OK, so how do we fix this?

Multiplying your server, Ubuntu server and virtualization

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HowTos

computerworld.com: One of the hottest new technologies for servers is virtualization, which allows you to install multiple instances of one or more operating systems on one machine. This is ideal especially for servers with a low average load because, instead of configuring a separate physical box for every single instance of an operating system you need, you just run multiple instances of one or more operating systems on one machine. Unfortunately, it’s a jungle out there.

Glipper: Clipboard Management for GNOME

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Software
HowTos

blogs.howtogeek.com: One of the things that has annoyed me most about GNOME as I've played with it lately is the lack of a clipboard manager comparable to Klipper on KDE. However, as I was looking for a package in Synaptic, I managed to come across a program that does the job quite well: Glipper.

Ubuntu on the Asus Eee PC: Part 1

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HowTos

sampletheweb.com: I’ve been combing over various guides and instructions online for installing Ubuntu on the Asus Eee PCmahalo, and I ran into a few kinks along the way since I don’t have a USB CD-ROM to install from and opted for a USB flash drive instead.

some howtos:

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HowTos
  • Short Tip: Use bluetooth mobile phone as a mouse/pointer

  • Easy TrueCrypt Handling Trough EasyCrypt
  • Xubuntu + Compiz = Pretty pretty Xubuntu
  • How to Enable or Disable Login Messages
  • Update BIOS of Dell laptop with Ubuntu
  • Video - installing Mplayer and the binary codecs

Installing MyDNS And The MyDNSConfig Control Panel On Fedora 8

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HowTos

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig on Fedora 8.

few more howtos:

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HowTos
  • Taking Screenshots with Linux

  • How do I find out my DHCP server address?
  • Howto: Change Root’s Prompt to RED
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More in Tux Machines

Red Hat News

  • Improving Storage Performance with Ceph and Flash
    Ceph is a storage system designed to be used at scale, with clusters of Ceph in deployment in excess of 40 petabytes today. At LinuxCon Europe, Allen Samuels, Engineering Fellow at Western Digital, says that Ceph has been proven to scale out reasonably well. Samuels says, “the most important thing that a storage management system does in the clustered world is to give you availability and durability,” and much of the technology in Ceph focuses on controlling the availability and the durability of your data. In his presentation, Samuels talks not just about some of the performance advantages to deploying Ceph on Flash, but he also goes into detail about what they are doing to optimize Ceph in future releases.
  • Ceph and Flash by Allen Samuels, Western Digital
  • Red Hat Opens Up OpenShift Dedicated to Google Cloud Platform
    When businesses and enterprises begin adopting data center platforms that utilize containerization, then and only then can we finally say that the container trend is sweeping the planet. Red Hat’s starter option for containerization platforms is OpenShift Dedicated — a public cloud-based, mostly preconfigured solution, which launched at this time last year on Amazon AWS.
  • Volatility Numbers in View for Red Hat, Inc. (NYSE:RHT)

Leftovers: OSS and Sharing

  • Rhizome is working on an open-source tool to help archive digital content
    "The stability of this kind of easy archiving for document storage, review and revision is a great possibility, but the workflow for journalists is very specific, so the grant will allow us to figure out how it could function." Another feature of Webrecorder that journalists might find appealing, and one of the software's core purposes, is to preserve material that might be deleted or become unavailable in time. However, the tool is currently operated under a Digital Millennium Copyright Act (DMCA) Takedown policy. This means any individual can ask for a record of their web presence or materials to be removed, so Rhizome will be working to "answer the more complicated questions and figure out policies" around privacy and copyright with the latest round of funding.
  • An ode to releasing software
    There is one particular moment in every Free and Open Source Software project: it’s the time when the software is about to get released. The software has been totally frozen of course, QA tests have been made, all the lights are green; the website still needs to be updated with the release notes, perhaps some new content and of course the stable builds have to be uploaded. The release time is always a special one. The very day of the release, there is some excitement and often a bit of stress. The release manager(s), as well as everyone working on the project’s infrastructure are busy making sure everything is ready when the upload of the stable version of the software, binaries and source, has been completed. In many cases, some attention is paid to the main project’s mirror servers so that the downloads are fluid and work (mostly) flawlessly as soon as the release has been pushed and published.
  • Diversity Scholarship Series: My Time at CloudNativeCon 2016
    CloudNativeCon 2016 was a wonderful first conference for me and although the whirlwind of a conference is tiring, I left feeling motivated and inspired. The conference made me feel like I was a part of the community and technology I have been working with daily.
  • WordPress 4.7 Content Management System Provides New Design Options
    WordPress is among the most widely used open-source technologies in the world, powering more than 70 million websites. WordPress 4.7 was released Dec. 6, providing a new milestone update including new features for both users and developers. As is typically the case with new WordPress releases, there is also a new default theme in the 4.7 update. The 2017 theme provides users with a number of interesting attributes including the large feature image as well as the ability to have a video as part of the header image. The Theme Customizer feature enables users to more intuitively adjust various elements of a theme, to fit the needs of websites that use will upgrade to WordPress 4.7. In addition, the new custom CSS (Cascading Style Sheets) feature within a theme preview lets users quickly see how style changes will change the look of a site. As an open-source project, WordPress benefits from participation of independent contributors and for the 4.7 release there were 482 contributors. In this slideshow eWEEK takes a look at some of the highlights of the WordPress 4.7 release.
  • Psychology Professor Releases Free, Open-Source, Preprint Software
    The Center for Open Science, directed by University of Virginia psychology professor Brian Nosek, has launched three new services to more quickly share research data as the center continues its mission to press for openness, integrity and reproducibility of scientific research. Typically, researchers send preprint manuscripts detailing their research findings to peer-reviewed academic journals, such as Nature and Science. The review process can take months or even years before publication – if the research is published at all. By contrast, “preprinting,” or sharing non-peer-reviewed research results online, enables crucial data to get out to the community the moment it is completed. That, said Nosek, is critical.
  • Integral Ad Science Launches Open Source SDK to Drive Mobile Innovation for the Advertising Industry
  • Tullett Prebon Information, Quaternion and Columbia University form open source risk collaboration
  • Tullett Prebon Information And Quaternion Risk Management Partner To Enhance Transparency And Standardisation In Risk Modelling – Partnership Fuels Columbia University Research To Improve Understanding Of Systemic Risk
  • Integral Ad Science Partners with Google, Others for Open Source Viewability
  • DoomRL creator makes free roguelike open-source to try and counter Zenimax legal threat
  • DoomRL Goes Open-Source in Face of Copyright Claims
    Earlier this week, ZeniMax Medi hit DoomRL, a popular roguelike version of the original first-person shooter, with a cease-and-desist order. This order instructed producer ChaosForge to remove the free downloadable game to prevent further legal action. Instead of taking it down, co-creator Kornel Kisielewicz turned the game open-source.
  • This Indian software company just partnered with the world’s biggest open source community
    In what can be called a major motivation for Indian tech firms, Amrut Software, an end-to-end Software, BPO services and solutions provider has become a GitHub distributor for India region. GitHub hosts world’s biggest open source community along with the most popular version control systems, configuration management and collaboration tools for software developers. It has some of the largest installations of repositories in the world.
  • Python 3.6 released with many new improvements and features
    Python,the high-level interpreted programming language is now one of the most preferred programming language by beginners and professional-level developers.So,here Python 3.6 is now available with many changes,improvements and of course the ease of Python was not left in the work list.

Security Leftovers