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A beginner's guide to bash

A Brief Introduction
Bash or Bourne again shell is a replacement to the original unix shell written by Stephen Bourne at Bell Labs.

It offers vast improvements over the original shell, which include
Integer arithmetic,
Indexed arrays,
Command line editing,
Unlimited command history.

Bash scripts are available by default on most Linux distributions.

http://techarena51.com/index.php/a-beginners-guide-to-bash-scripting/

 

Send mail from command line on Linux using external SMTP server

SMTP servers If you have just setup an smtp server, like Postfix or Exim, then you would want to test it out to check if it is receiving and relaying emails properly or not. If you do not want to setup a mail client like Thunderbird on your local machine and want to run a quick command to send out mails via these smtp servers, then this post shows you how. 1. mailx command The mailx command is available from many different packages like mailutils,...
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Send mail from command line with external smtp server on Linux

SMTP servers If you have just setup an smtp server, like Postfix or Exim, then you would want to test it out to check if it is receiving and relaying emails properly or not. If you do not want to setup a mail client like Thunderbird on your local machine and want to run a quick command to send out mails via these smtp servers, then this post shows you how. 1. mailx command The mailx command is available from many different packages like mailutils,...
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Intense Gameplay? Try these 13 Roguelike games

Roguelike is a sub-genre of role-playing games. It literally means "a game like Rogue". Rogue is a dungeon crawling video game first released in 1980, standing out for being fiendishly addictive. Its goal was to retrieve the Amulet of Yendor, hidden deep in the 26th level, and ascend back to the top.

This article compiles a good selection of roguelike games available for Linux. If you enjoy intense, addictive gameplay, try these 13 games. Don't be put off by the primitive graphics, you'll soon forget the visuals once you get immersed. All of them are available to download without charge, and almost all are released under an open source license.

<A HREF="http://www.linuxlinks.com/article/201412031524381/RoguelikeGames.html">Complete story</A>

 

Open Cloud Alliance (OCA) - Some insights of its real strengths and benefits

The newly created Open Cloud Alliance is a network of software manufacturers, cloud service providers and system integrators providing a standardized cloud platform on the basis of open source software to offer flexibility and choice.

The formation of this alliance produced wide feedback in the press. Now, the initiator of this alliance, Peter Ganten, CEO of Univention, and Rafael Laguan, CEO of Open-Xchange and software partner of the alliance, both edited a post in their companies' blogs giving a personal insight on the real benefits and motives behind it.

Univention blog: http://blog.univention.com/open-cloud-alliance-just-another-cloud-alliance/

Open-Xchange blog: http://blog.open-xchange.com/2014/12/03/oca/

 

How install a Firewall on Linux and block IP's that bruteforce your system

Whenever I setup a Linux VPS, the first thing I do is install a firewall. I have noticed an increase in attacks on my servers, especially from China. I use
Config Server Firewall (CFG) and Login Failure deamon (LFD) because they are easy to set up and provide additional features like suspicious file reporting and system monitoring.

http://techarena51.com/index.php/how-to-configure-and-install-config-server-firewall-login-failure-daemon/

 

OK335xS Single board computer with two Ethernet Ports based on TI Sitara AM335x

Forlinx Embedded Technology Co.,Ltd (www.forlinx.net)is a global provider of ARM series single board computer.All products rangs from ARM9,ARM11,Cortex-A8 to Cortex-A9 platform.

OK335xS single board computer is one of  SDK board based on TI AM335x processor. after it is been launched, it has attracted many eyes from engineers all over the world.If you also have interests in it, please carefully check following contents for your reference.

OK335xS single board computer is a Cortex-A8 board based on TI AM3354 processor.It designs in the structure of CPU module(FET335xS)+ base board, and is used for commercial application(Temp range:-20℃~+70℃).and it support WinCE,Linux,Android/Starterware OS.

FET335xS CPU module is a high performance and cost effective module.It is designed as a  6-layer PCB board with the dimension of 42mm*52mm,and is with stamp hole interface.It integrates with 512M DDR3 RAM, and 256M SLC Nandflash for memory and support Ethernet,USB,UART,etc for connectivity.

and as for the base board, it measures 130mm*190mm and also support Ethernet, USB,CAN,485 bus function.Most importantly, OK335xS is the board with twoEthernet ports,which is a rare board based on Cortex-A8 platform.

335xS-1.jpg335xS-2.jpg

20140110012004_16852.jpg

 

The board  hardware resource are as follows:

FET335xS CPU Module Features

Key Parameters

CPU Processor: TI AM335X Cortex-A8

Main frequency: 800MHz

CPU Architecture Cortex-A8
RAM 512M DDR3
FLASH 256M SLC NandFlash
Operating Temperature -20℃~+70℃
Dimension 5.2cm*4.2cm
PMU TPS65217C
Voltage 5V
Humidity 10%~90%
OS Android2.3/4.2, Linux3.2, WinCE7.0
Pre-installed System Linux3.2
Graphics Processor Power VR SGX530

Function

USB 2.0 1x USB 2.0 HOST, 1x USB 2.0 OTG
Ethernet Dual Gigabit Ethernet
SD/MMC/SDIO 3x MMC
IIC 3x IIC
SPI 2x SPI
UART / IrDA 6x UART
GPIOs More than 20
ADC 8x ADC
Video Decoder Software codec
2D / 3D Support
Audio interface IIS interface port
JTAG Support
E2PROM Support (Used for encryption)

OK335xS Base Board Features

  SPI

1x SPI

  Power Supply

5V

  LED

1x LED

  LCD

Touch panel: support both resistive and capacitive;

Screen size: 4.3'', 5'', 7'', 8'', 10.4'' ;

Module: Support LCD to VGA module, LCD to LVDS module

  SD card slot

1x SD card slot

  WIFI

USB WiFi

  Serial Port

3x serial port

USB Device

1x USB 2.0

RTC

Support

  RS485

1x RS485, Multiplexed with profibus

  A/D

5x A/D

  IIC

1x IIC

  User Key

5x user key

Audio

3x Audio(1 for Phone, 1 for MIC, 1 for Linein)

  Boot Switch

Set to boot from SD card or NAND Flash

  Reset

Support

USB Host

4x USB 2.0 Host

  Ethernet

2x Gigabit Ethernet

  CAN

1x CAN

PWM

2x PWM( 1x backlight, 1x buzzer)

What's more, custom service based on TI AM335x is also provided.

If you hope to know the quotation and other details, please directly contact  This e-mail address is being protected from spambots. You need JavaScript enabled to view it .Thx.

 

4 Cutting Edge Web Browsers


This article highlights interesting open source web browsers that are in a very early stage of development. They have very different target audiences. Fifth is based on the WebKitFLTK web library, and seeks to retain the best features of Opera, but add a new few features. Dooscape uses the QtWebKit as its engine, and offers an intuitive interface. The latest major release of Emacs includes a built-in web browser, eww. The final web browser featured in this article is also distinct. Breach is a modular browser written entirely in Javascript. All four web browsers are released under an open source license.

<A HREF="http://www.linuxlinks.com/article/20141127141517421/NewWebBrowsers.html">Full article</A>

 

Linux Mint 17.1 Cinnamon Officially Released

Codenamed “Rebecca”, the Linux Mint 17.1 Cinnamon edition has been released, and brings many new improvements, featuring a brand new, more stable and polished Cinnamon then ever, a Ubuntu 14.04 software base and Linux Kernel 3.13.

 

Full article

 

A simple and easy way to install and configure puppet on Linux

Puppet is an automation tool which allows you to automate the configuration of software like apache and nginx across multiple servers.

Puppet installation
In this tutorial we will be installing Puppet in the Puppet/Agent mode.You can install it in a Stand Alone mode as well.

OS & software Versions
Centos 6.5
Linux kernel 2.6.32
Puppet 3.6.2

Let’s get to it then.

 

 

 

http://techarena51.com/index.php/a-simple-way-to-install-and-configure-a-puppet-server-on-linux/

 

Battle for Wesnoth 1.12 Has Big New Features [Overview, What’s New, Screenshots]

Battle for Wesnoth is one of the flagship open-source games, with a huge, dedicated community and an almost unmatched feature-completeness among the open-source games.

 

Full article

 
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