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Nettop, the command not the hardware is not just for OSX..

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Linux

I found this article on the osxdaily website, the article refers to running nettop on OSX however it’s a *nix command so will also be in the package repository (if not preinstalled) on your favorite distro. I’ve tested all of the command options on Sabayon and they work fine..

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Using dual factor authentication on Linux..

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Linux

I’m really starting to appreciate the benifits of dual factor authentication across the board, so this Howtoforge article is of interest to anyone who wants to secure SSH access on thier Linux systems. I previously posted about using your mobile phone as the something you have bit, well this is another method.

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HOW TO DO MASS ENROLLING OF YUBIKEY WITH LINOTP

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Linux

While you may have your Ubuntu install locked down with Full disk encryption incase you loose the laptop, UFW locking down the network with a firewall, there is no point if you have a poor password. Dual factor authentication using One Time Passwords may be an option for you, if they are this great howtoforge article might point you in the right direction.

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Why is PRISM so shocking? Everyone is reading our data

Filed under
Just talk

With prism being the story of the week, I'm just asking a simple question

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Half-Life

Filed under
Linux

I've been playing Half-Life recently, something to which I've looked forward for quite some time. I did get it playing under Wine years ago, but I thought I only got a little ways. I'm stuck In the Rails right now, but I remember this level.

Setting up a serial console

This is a bit old school however if you are a Sysadmin you might need to get a console up for a Cisco or other device. I hope this helps

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Getting Squid3 on Debian 6.x to work with Active Directory, Security Groups and Websense

Filed under
Linux

I’ve had a need to get a local squid proxy to perform local filtering based on AD Security groups because it’s not something websense can do. I found this wonderful howtofoge guide online and Used it to setup the base system. This howto is a work in progress as the next stage is to get it working with DansGuardian or SquidGuard.

Prerequisites
Client Internet Explorer Browsers need to have “Enable Integrated Windows Authentication” ticked in Internet Options :: Advanced settings as well as Proxy Auto detection enabled – google these if not sure. All modern web browsers will support proxy auto detection. Firefox and Chrome also support Windows Authentication.

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Enabling Dual Factor Authentication on Linux SSH logins..

Filed under
Linux

A couple of weeks ago I wrote a post on using a Chromebook to develop on a cloud platform. Its based on a Digital Ocean remote server and like most people who wish to attach to the command line interface on a remote server I use SSH. It’s an encrypted connection over the network/internet from end to end. However being a cloud server I was wondering if it was possible to secure this a little bit more?

A chat with a friend on the way into work provided me with a solution.

The solution is Two Factor authentication a system beased on a simple premise, something you know (the SSH password in this case) and something you have (your mobile phone in this case, but it could be a secure token) which will deliver a random number.

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Ubuntu 13.04 raring to go on Acer C7 Chromebook

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Linux

Most of the guides you will see using this utility mine included cover how to get Ubuntu 12.04 the LTS version working, however there is also scope within the command line to get the latest and greatest up and running. specifically the -r switch. Issuing the following command will provide you with a bare bones Ubuntu 13.04 install

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Using a Chromebook to develop in the cloud…

Filed under
Linux

Being a few months in with my Acer C7 Chromebook as my only laptop i’ve very pleased with what it does, I do have the Crouton Ubuntu chroot installed and upgraded the device to 16Gb of Ram, however there is one core thing I miss with this setup. VMWare/Virtualbox. I find i’m often building virtual machines, usually Ubuntu to test bsh scripts or build LAMP Environments to test some PHP out with. That isn’t something i’m able to do even on the CHROOT Ubuntu environment.

All however is not lost, and i’ve found a way to get round this..

Read my ChromeOS virtual soluton

Desktop era

Filed under
Linux

Will the believers in the desktops ever stop making this year is the year of Linux on the desktop...

There’s something Ubuntu needs to do if the phone is going to work..

Filed under
Linux

They say a week in politics is a long time, well a year in the mobile phone industry is an eternity and what huge changes the industry is going through. A year ago the roost was ruled by Apple and Google, 3G was the fastest we can go and handsets were finding a stock size at 4.5″.. The world however of the mobile device is now a very different place and very much in a positive state of change..

What does the Ubuntu Phone need to succeed?

Casual Programming and Linux Screen-Recorders

Filed under
Linux

After being retired (for four years) from teaching high school Computer Science, I decided to get back into programming again. I once taught a beginning programming class using the Ruby language, and I thought that would be a good way to get back into programming. So, I decided I needed a “Ruby refresher”, and I wanted to learn more about that language than I taught in the classroom.

Forgot your Ubuntu Password? All is not lost.

Filed under
Howtos

It’s always a pain when you forget your password, and i’ve often done it on an Ubuntu install. All however is not lost as a stock Ubuntu install its quite easy to reset your password

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Maybe it's time to think about LTSP?

Filed under
Linux

With austerity being the watchword of our times being able to get as much out of that IT hardware you have is as important as ever, more so when the industry is in shift at an OS level and maybe the hardware you have isn’t quite up to the task of Windows 8?

Ubuntu Phone, Good idea?

Filed under
Linux

In a bold move today Ubuntu have announced plans to move forward with an Ubuntu Phone which it is touting the interface is the difference here. This is a big statement in a marketplace which has been owned by Apple and Google for the last 3 to 4 years.

The EE Nokia Lumia 920

Filed under
Just talk

The UK got its first 4G network this month and the choices for 4G phones are thin on the ground at the moment the iPhone 5 and the Samsung Galaxy S3 were there at launch however as a long time Android and IOS user i’m finding both operating systems at that stage of their life when they ar about features not innovation. This may well change in the future however, and you must understand these words are hard for me to say, Microsoft seem to be innovating quite a bit in the OS market, pushing the boat out and taking some risks.

My phone of choice on EE is the Nokia Lumia 920, Nokias last bi breath attempt at staying alive as a company it would seem however this is a phone developed for Windows Phone 8 in Microsoft. It is the phone Microsoft were happy to share the stage with at launch and it’s got generally good reviews.

Lets start this with the two important things the phone and the 4G..

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Building your own cloud using OwnCloud on Ubuntu.

Filed under
Linux

Unless you’ve been under a rock or are the type of Luddite who thinks the pen and paper is modern hi tech, you cannot fail to have heard about the most miss used expression on the Internet, the cloud. It’s a buzzword which every ill equipped marketing goon has latched his crayon’s onto and will mention in every presentation ever.

Put simply the cloud is the image used when tech people wanted to display the Internet outside their own network, this turned into a location firstly where data could be stored and more recently where “Big Data” is stored.. Honestly I have no idea who comes up with this stuff.

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The 3 Wise Smartphones this christmas

Filed under
Just talk

The busiest period of the year for consumer technology purchases is reaching us quickly December is Thanksgiving and Christmas and January Sales time Cash is going to be spent and the smartphone market is a huge slice of that cash which will be spent.

Following a week of announcements what state is this market segment in?

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Ubuntu 12.04 the Macbook Pro Post Install

Filed under
Linux

While this post states its the post install for the Macbook Pro it will cover any 64bit Nvidia Ubuntu 12.10 post install...

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More in Tux Machines

Meld is an excellent file and folder comparison tool for Windows and Linux

Ever had two sets of the same files and folders and couldn't decide which one to retain? It may take a long time to actually open each to verify the one that's recent or the one you need; while dates associated with the files may help, they won't all the time as they don't tell you anything about the actual content. This is where file comparison tools can be time-savers. Meld is an open source file comparison tool for Windows and Linux for exactly that purpose. Read more

Did Lilu Ransomware Really Infect Linux Servers

Note that the domain name of this folder has been hidden from view making it impossible for us to verify if these files were actually on a Linux server. The article goes on to note that “Lilocked doesn't encrypt system files, but only a small subset of file extensions, such as HTML, JS, CSS, PHP, INI, and various image file formats. This means infected servers continue to run normally.” This limitation raises the obvious question of whether the core of the Linux server itself has been compromised or whether merely applications connected to the core have been hacked. There are many very insecure website building applications such as Wordpress and many insecure web mail applications such as Exim that have been repeatedly hacked over the years. Both Wordpress and Exim have suffered from dozens of major security problems that have nothing to do with the security of the Linux operating system which is at the core of all Linux servers. All of the file formats mentioned in the article are files used on Wordpress websites and files that can be transmitted via Exim email programs. [...] So instead of 6000 websites on 6000 servers being infected, it looks more like 6000 files on less than 1000 websites were infected. And many of these websites could have been on the same server – meaning that perhaps only a couple dozen out of the worlds 10 million Linux servers had infected files – and none of the files were actually in the core of any Linux servers. [...] Many of these articles were exact copies of the Zdnet article. Thus far, not a single so-called “security expert” has bothered either to look into the evidence provided much less challenge or disagree with this silly claim. Instead, make even more extreme claims, noting that there are millions of Linux servers running outdated, un-patched and insecure versions of Exim software. This is a fact. But given how many holes have been found in the Exim software, the problem is not with the Linux servers, it is with the Exim software. In my humble opinion, the design of Exim is not secure and the design of Postfix is more secure. The solution to this Exim problem is to demand that Cpanel support support Postfix and to ask Debian to also switch from Exim to Postfix (something Ubuntu has already done for very obvious reasons). This is the benefit of the diversity of free open source software. If one program has problems, there is quite often a more secure alternative that can be installed with just the click of a button. This is a problem that has been going on for years. But it can be fixed in a matter of minutes. Read more

FOSS – A boon for e-governance and educational institutions

Free and Open Source Software (FOSS) Community is By the Community, For the Community, of the Community, To the Community on No Profit No Loss Basis. Open Source Software, is and will always remain free. There is no license to pay to anybody.The central government mooted out a policy on adoption of open source software, which makes it mandatory for all software applications and services of the government be built using open source software, so that projects under Digital India “ensure efficiency, transparency and reliability of such services at affordable costs”. “Government of India shall endeavour to adopt Open Source Software in all e-Governance systems implemented by various Government organizations, as a preferred option in comparison to Closed Source Software,” said the policy statement, put on the website of the Department of Electronics and Information Technology.The Open Source Software shall have the following characteristics:- A) The source code shall be available for the community / adopter / end user to study and modify the software and to redistribute copies of either the original or modified software. B) Source code shall be free from any royalty. Read more

Programming: GitLab, JDK, Eclipse, pdb, Julia and More

  • GitLab Adopted by KDE to Foster Open Source Contributions

    Today GitLab, the DevOps platform delivered as a single application, announced that KDE, an international technology community that creates free and open source software for desktop and portable computing, is adopting GitLab for use by its developers to further enhance infrastructure accessibility and encourage contributions. KDE is a free and open source software community dedicated to creating a user-friendly computing experience. It offers an advanced graphical desktop, a wide variety of applications for communication, work, education and entertainment, and a platform for easily building new applications. Adding access to GitLab will provide the KDE community with additional options for accessible infrastructure for contributors, code review integration with git, streamlined infrastructure and tooling, and an open communication channel with the upstream GitLab community.

  • Oracle releases JDK 13 with switch expressions and text blocks preview features, and more!

    Yesterday, Oracle announced the general availability of Java SE 13 (JDK 13) and that its binaries are expected to be available for download today. In addition to improved performance, stability, and security, this release comes with two preview features, switch expressions and text blocks. This announcement coincides with the commencement of Oracle’s co-located OpenWorld and Code One conferences happening from September 16-17 2019 at San Francisco. Oracle’s director of Java SE Product Management, Sharat Chander, wrote in the announcement, “Oracle offers Java 13 for enterprises and developers. JDK 13 will receive a minimum of two updates, per the Oracle CPU schedule, before being followed by Oracle JDK 14, which is due out in March 2020, with early access builds already available.” This release is licensed under the GNU General Public License v2 with the Classpath Exception (GPLv2+CPE). For those who are using Oracle JDK release as part of an Oracle product or service, it is available under a commercial license.

  • Eclipse Che, Kubernetes-native IDE, version 7 now available

    Today, the Eclipse Foundation announced the release of Eclipse Che 7, the Kubernetes-native IDE, enabling developer teams to code, build, test, and run cloud-native applications. We are excited by this announcement and the new capabilities that this version offers the community and developers building containerized applications.

  • Python Debugging With pdb

    Nowadays, we often take for granted the excellent debuggers built into our favorite IDEs. But how do you debug your Python code when you don’t have the luxury of using an IDE? pdb, short for Python DeBugger, is a module for interactive source code debugging. It’s built into the Python Standard Library, so it’s always accessible to you. Because it runs in the command line, it’s especially helpful when you’re developing on remote systems. In this course, you’ll learn how to perform the most common debugging tasks using pdb, including setting breakpoints, stepping through code, viewing stack traces, creating watch lists, and more.

  • Happy Birthday Practical Business Python!

    On September 17th, 2014, I published my first article which means that today is the 5th birthday of Practical Business Python. Thank you to all my readers and all those that have supported me through this process! It has been a great journey and I look forward to seeing what the future holds. This 5 year anniversary gives me the opportunity to reflect on the blog and what will be coming next. I figured I would use this milestone to walk through a few of the stats and costs associated with running this blog for the past 5 years. This post will not be technical but I am hopeful that my readers as well as current and aspiring bloggers going down this path will find it helpful. Finally, please use the comments to let me know what content you would like to see in the future.

  • 6 Excellent Free Books to Learn Julia

    Julia is a high-level, high-performance dynamic programming language for technical computing by Alan Edelman, Stefan Karpinski, Jeff Bezanson, and Viral Shah. Julia aims to create an unprecedented combination of ease-of-use, power, and efficiency in a single language. It’s a homoiconic functional language focused on technical computing. While having the full power of homoiconic macros, first-class functions, and low-level control, Julia is as easy to learn and use as Python. Although Julia is a new language, first appearing in 2012, its roots are in Lisp, so it comes with mature features like macros and support for other metaprogramming techniques like code generation. Julia’s expressive grammar lets you write easy-to-read and easier-to-debug code, and its speed gets you through more work in less time. It’s a great choice whether you’re designing a machine learning system, crunching statistical data, or writing system utilities. Distinctive aspects of Julia’s design include a type system with parametric polymorphism and types in a fully dynamic programming language and multiple dispatch as its core programming paradigm. It allows concurrent, parallel and distributed computing, and direct calling of C and Fortran libraries without glue code.

  • A slack hack