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Howtos

Forget About Photoshop: Five CSS Hacks to Help You Stop Using Images

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Howtos

When you are laying out a new design for a web site, the last thing you generally want to do is create a ton of images for the layout. You might make a rounded corner or shadowed text in Photoshop, but that is wasted time if the client doesn’t like it or the website doesn’t turn out as expected.

A way through SourceForge

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Howtos

I made a simple (should be) tutorial from creating of a project until releasing it on SourceForge.net

Qt for beginners

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Howtos

I made some tutorials how to use the Qt Creator and how to begin with Qt. Also a example how to convert binary numbers into decimal and back.

Ubuntu's way to get bleeding edge kernel

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Howtos

Ubuntu’s release cycle is 6 months. Though this seems to be aggressive cycle, it is not enough for someone who depends on bleeding edge kernel which may support some new hardware or damn smart feature. In this scenario you need to wait till next release of ubuntu, if you are not comfortable in downloading the vanilla kernel...

How to add Awn main menu applet in AWN 0.3.2

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Howtos

The latest Awn 0.3.2 has seen a few applets been removed, one of them being the good old AWN main menu. This is a quick guide to run it in the new 0.3.2

Could not boot into XP from GRUB and how i found a work around

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Howtos

First, GRUB was erased. After fixing it, XP did not boot from GRUB owing to ‘ERROR 12′. Lastly, How I could fix both, rather discovered work-around for some part. I am a newbie yet and see if I've done justice to the solution.

“Can’t locate module” Error in Linux and Data Loss

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Howtos

When you start your Linux system, at boot time, the process may get terminated and you might come across with the following error message:
“Can't Locate Module ”
After this error message, the system does not boot and none of your data can be accessed from it.

How to do md5sum check

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Howtos

"md5sum is a computer program that calculates and verifies 128-bit MD5hashes, as described in RFC 1321. The MD5 hash (or checksum) functions as a compact digital fingerprint of a file." ~Wikipedia
In simple words, if you download a Linux Distro and the md5sum result matches the one provided by the web site, your file has practically been downloaded OK.

So, how do we do this md5sum?


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Linux Cheat Sheets (awk, ed, sed, perl, bash, screen)

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Howtos

I have made several linux cheat sheets to speed up the learning process of some tools.

Recently I decided to put them on my blog.

Here is a link to all the cheat sheets on my blog:
cheat sheets at catonmat (my blog)

They include:

How to get SLAB working with SMART

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Howtos

If i had to name one thing that i sincerely hate about openSUSE, it'd have to be YaST's package manager with its zypper backend, so, as you may have guessed from the title, i use Smart instead, and i don't think i'm the only one here.

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More in Tux Machines

Servers: Containers, 'Cloud', Microservices, and Hyperledger

  • How to Choose a Linux Container Image
    A comparison of Linux container images talks about the best-practices in choosing an image. Architecture, security and performance are among the factors, while commercial users would also look for support options. A Linux container allows separate management of kernel space and user space components by utilizing cgroups and namespaces, which are resource and process isolation mechanisms. Solaris and BSD also have abstractions similar to Linux containers but the article's focus is on the latter only. The host running the container has the operating system kernel and a set of libraries and tools required to run containers. The container image, on the other hand, has the libraries, interpreters and application code required to run the application that is being distributed in the container. These depend on underlying system libraries. This is true for interpreted languages too as the interpreters themselves are written in low level languages.
  • The Four Pillars of Cloud-Native Operations
    As organizations shift their application strategies to embrace the cloud-native world, the purpose of the cloud transitions from saving money to delivering and managing applications. Platforms such as Cloud Foundry, Kubernetes, and Docker redefine the possibilities for application environments that utilize the cloud. It’s time for us as operations professionals to rethink how we approach our jobs in this new world. We should be asking, how do our organizations take advantage of cloud-native as a new mode of application delivery?
  • How to align your team around microservices
    Microservices have been a focus across the open source world for several years now. Although open source technologies such as Docker, Kubernetes, Prometheus, and Swarm make it easier than ever for organizations to adopt microservice architectures, getting your team on the same page about microservices remains a difficult challenge. For a profession that stresses the importance of naming things well, we've done ourselves a disservice with microservices. The problem is that that there is nothing inherently "micro" about microservices. Some can be small, but size is relative and there's no standard measurement unit across organizations. A "small" service at one company might be 1 million lines of code, but far fewer at another organization.
  • Hyperledger Stitches in Another Blockchain Project
    The Linux Foundation’s open source Hyperledger Project, which works on blockchain technologies, added a sixth sub project — this one dubbed Quilt. Hyperledger Quilt started around 18 months ago and is an implementation of the Interledger Protocol (ILP), which helps facilitate transactions across ledgers.
  • Chinese Search Giant Baidu Joins Hyperledger Blockchain Consortium
    Chinese search engine giant Baidu has become the latest member of the Linux Foundation-led Hyperledger blockchain consortium. In joining the group – which focuses on developing blockchain technologies for enterprises – Baidu will assist the project's efforts alongside other member companies including Accenture, IBM, JP Morgan, R3, Cisco and SAP, among others.

Games: Steam Sale, Skirmish Line, Maia, Observer

Canonical on Path to IPO as Ubuntu Unity Linux Desktop Gets Ditched

In October 2010, Mark Shuttleworth, founder of the Ubuntu open-source operating system and CEO of Canonical, announced his grand plan to build a converged Linux desktop that would work on mobile devices, desktops and even TVs. He called the effort "Unity" and poured significant financial resources into it. Seven years later, the Unity dream is dead. On Oct. 19, Ubuntu 17.10 was released as the first Ubuntu Linux version since 2010 that didn't use Unity as the default Linux desktop. In a video interview with eWEEK, Shuttleworth details the rationale behind his decision to cancel Unity and why he has now put his company on the path toward an initial public offering (IPO). Because Ubuntu has moved into the mainstream in a bunch of areas, including the cloud, he said some of the things his company had been doing were never going to be commercially sustainable. Read more Also: Ubuntu 17.10 delivers new desktop and cloud enhancements

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