diff --git a/sources/share/20150423 uperTuxKart 0.9 Released--The Best Racing Game on Linux Just Got Even Better.md b/sources/share/20150423 uperTuxKart 0.9 Released--The Best Racing Game on Linux Just Got Even Better.md new file mode 100644 index 0000000000..c664676a83 --- /dev/null +++ b/sources/share/20150423 uperTuxKart 0.9 Released--The Best Racing Game on Linux Just Got Even Better.md @@ -0,0 +1,37 @@ +uperTuxKart 0.9 Released — The Best Racing Game on Linux Just Got Even Better +================================================================================ +**A brand new version of the hugely popular racing game SuperTuxKart has [zipped past the release line][1] to land on download servers. ** + +![Super Tux Kart 0.9 Release Poster](http://1.bp.blogspot.com/-eGXvJu3UVwc/VTVhICZVEtI/AAAAAAAAAf0/iP2bkWDNf_c/s1600/poster-cropped.jpg) +Super Tux Kart 0.9 Release Poster + +SuperTuxKart 0.9 is a huge update over earlier versions, running a hot new engine (awesomely named ‘Antarctica’) under the hood that aims to deliver richer graphical environments , shading and depth of field plus better kart physics. + +The bump in graphics performance necessitates a bump in graphics card requirements, too. SuperTuxKart developers advise would-be racers to will need a device with graphics comparable to (or, ideally, better than) Intel HD Graphics 3000, NVIDIA GeForce 8600 or AMD Radeon HD 3650. + +### Other Changes ### + +Keeping pace alongside the headline visual improvements in SuperTuxKart 0.9 is pair **brand new tracks**, new Karts, new online accounts for keeping track of and sharing badges earned through the **newly introduced achievements system**, and oodles of fixes and artwork tweaks. + +Check out STK 0.9 in all its shader-based glory by hitting play on the official release video below. + +注：youtube 视频 + + +Ubuntu users can grab pre-compiled binaries for the new release from the project website. + +- [Download SuperTuxKart 0.9][2] + +-------------------------------------------------------------------------------- + +via: http://www.omgubuntu.co.uk/2015/04/supertuxkart-0-9-released + +作者：[Joey-Elijah Sneddon][a] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 + +[a]:https://plus.google.com/117485690627814051450/?rel=author +[1]:http://supertuxkart.blogspot.co.uk/2015/04/supertuxkart-09-released.html +[2]:http://supertuxkart.sourceforge.net/Downloads \ No newline at end of file diff --git a/sources/tech/20150423 20 Awesome Docker Containers for a Desktop User.md b/sources/tech/20150423 20 Awesome Docker Containers for a Desktop User.md new file mode 100644 index 0000000000..060aeb755d --- /dev/null +++ b/sources/tech/20150423 20 Awesome Docker Containers for a Desktop User.md @@ -0,0 +1,237 @@ +20 Awesome Docker Containers for a Desktop User +================================================================================ +Greetings to everyone, today we'll list out some awesome Desktop Apps that we can run using Docker Containers in our very own Desktop running Docker. Docker is an Open Source project that provides an open platform to pack, ship and run any application as a lightweight container. It has no boundaries of Language support, Frameworks or packaging system and can be run anywhere, anytime from a small home computers to high-end servers. It makes them great building blocks for deploying and scaling web apps, databases, and back-end services without depending on a particular stack or provider. It is basically used by the developers, Ops and Engineers as it is easy, fast and handy tool for testing or deploying their products but we can also use Docker for our Desktop usage to run a desktop apps out of the box. + +So here are some awesome 10 Desktop Application Docker images that we can run with Docker. + +### 1. Lynx ### + +Lynx is a all time favorite text-based web browser which is a lot familiar to most of the people running Linux. It is the oldest web browser currently in general use and development. To run Lynx, run the following command. + + $ docker run -it \ + --name lynx \ + jess/lynx + +### 2. Irssi ### + +Irssi is an awesome IRC Client which is based on Text Interface. To run Irssi using docker, we'll need to run the following commands in a docker installed desktop computer. + + docker run -it --name my-irssi -e TERM -u $(id -u):$(id -g) \ + -v $HOME/.irssi:/home/user/.irssi:ro \ + -v /etc/localtime:/etc/localtime:ro \ + irssi + +### 3. Chrome ### + +Chrome is an awesome GUI-based web browser developed by Google and is based on Open Source Project Chromium. Google Chrome is widely used, fast and secure web browser that are very much familiar to most of the people who surf internet. We can run Chrome using docker by running the following command. + + $ docker run -it \ + --net host \ + --cpuset 0 \ + --memory 512mb \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e DISPLAY=unix$DISPLAY \ + -v $HOME/Downloads:/root/Downloads \ + -v $HOME/.config/google-chrome/:/data \ + -v /dev/snd:/dev/snd --privileged \ + --name chrome \ + jess/chrome + +### 4. Tor Browser ### + +Tor Browser is a web browser which support anonymous features. It enables us freedom to surf website or services blocked by a particular organization or ISPs. It prevents somebody watching our Internet connection from learning what we do on internet and our exact location. To run Tor Browser, run the following command. + + $ docker run -it \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e DISPLAY=unix$DISPLAY \ + -v /dev/snd:/dev/snd --privileged \ + --name tor-browser \ + jess/tor-browser + +### 5. Firefox Browser ### + +Firefox Browser is a free and open source web browser which is developed by Mozilla Foundation. It is run by Gecko and SpiderMonkey engines. Firefox Browser has a lot of new features and is specially known for its performance and security. + + $ docker run -d \ + --name firefox \ + -e DISPLAY=$DISPLAY \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + kennethkl/firefox + +### 6. Rainbow Stream ### + +Rainbow Stream is a terminal based Twitter Client featuring real time tweetstream, compose, search , favorite and much more fun directly from terminal. To run Rainbow Stream, run the following command. + + $ docker run -it \ + -v /etc/localtime:/etc/localtime \ + -v $HOME/.rainbow_oauth:/root/.rainbow_oauth \ + -v $HOME/.rainbow_config.json:/root/.rainbow_config.json \ + --name rainbowstream \ + jess/rainbowstream + +### 7. Gparted ### + +Gparted is an open source software which allows us to partition disks. Now enjoy partitioning from a docker container. To run gparted, we'll need to run the following command. + + $ docker run -it \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e DISPLAY=unix$DISPLAY \ + --device /dev/sda:/dev/sda \ # mount the device to partition + --name gparted \ + jess/gparted + +### 8. GIMP Editor ### + +GIMP stands for Gnu Image Manipulation Program which is an awesome tool on Linux for graphics, image editing platform. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. + + $ docker run -it \ + --rm -e DISPLAY=$DISPLAY \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + jarfil/gimp-git + +### 9. Thunderbird ### + +Thunderbird is also a free and open source email application which is developed and maintained by Mozilla Foundation. It has tons of features that an email application software should have. Thunderbird is really easy to setup and customize. To run Thunderbird in a Docker environment, run the following command. + + $ docker run -d \ + -e DISPLAY \ + -v /tmp/.X11-unix:/tmp/.X11-unix:ro \ + -u docker \ + -v $HOME/docker-data/thunderbird:/home/docker/.thunderbird/ \ + yantis/thunderbird thunderbird + +### 10. Mutt ### + +Mutt is a text based email client which has bunches of cool features including color support, IMAP, POP3, SMTP support, mail storing support and much more. To run Mutt out of the box using docker, we'll need to run the following command. + + $ docker run -it \ + -v /etc/localtime:/etc/localtime \ + -e GMAIL -e GMAIL_NAME \ + -e GMAIL_PASS -e GMAIL_FROM \ + -v $HOME/.gnupg:/home/user/.gnupg \ + --name mutt \ + jess/mutt + +### 11. Skype ### + +Skype is an instant messaging, video calling software which is not open source but can be run awesome in linux. We can run Skype using Docker Containers too. To run Skype using a docker, run the following command. + + $ docker run -it \ + -v /tmp/.X11-unix:/tmp/.X11-unix:ro \ + -v /dev/snd:/dev/snd --privileged \ + -e DISPLAY="unix$DISPLAY" \ + tianon/skype + +### 12. Cathode ### + +Cathode is a beautiful fully customizable terminal app with a look inspired by classic computers. We can run Cathode by running the below command. + + $ docker run -it \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e DISPLAY=unix$DISPLAY \ + --name cathode \ + jess/1995 + +### 13. LibreOffice ### + +LibreOffice is a powerful office suite which is free and open source and is maintained by The Document Foundation. It has clean interface and is a powerful tools that lets us unleash our creativity and grow our productivity. LibreOffice embeds several applications that make it the most powerful Free & Open Source Office suite on the market. + + $docker run \ + -v $HOME/Documents:/home/libreoffice/Documents:rw \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e uid=$(id -u) -e gid=$(id -g) \ + -e DISPLAY=unix$DISPLAY --name libreoffice \ + chrisdaish/libreoffice + +### 14. Spotify ### + +Spotify gives us instant access to millions of songs from old favorites to the latest hits. To listen our favorite songs using docker, run the following command. + + $ docker run -it \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e DISPLAY=unix$DISPLAY \ + -v /dev/snd:/dev/snd --privileged \ + --name spotify \ + jess/spotify + +### 15. Audacity ### + +Audacity is free and open source cross-platform software for recording and editing sounds. Audacity can be used for post-processing of all types of audio, including podcasts by adding effects such as normalization, trimming, and fading in and out. To run Audacity, we'll need to run the following command in a terminal or shell. + + $ docker run --rm \ + -u $(id -u):$(id -g) \ + -v /tmp/.X11-unix:/tmp/.X11-unix:ro \ + -v /dev/snd:/dev/snd \ + -v "$HOME:$HOME" \ + -w "$HOME" \ + -e DISPLAY="unix$DISPLAY" \ + -e HOME \ + $(find /dev/snd/ -type c | sed 's/^/--device /') \ + knickers/audacity + +### 16. Eclipse ### + +Eclipse is an integrated development environment (IDE). It contains a base workspace and an extensible plug-in system for customizing the environment. It is mostly used to develop Java Based Applications. + + $ docker run -v ~/workspace/:/home/eclipse/workspace/ \ + -e DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix:ro \ + -d leesah/eclipse + +### 17. VLC Media Player ### + +VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. VLC Media Player is developed and maintained by VideoLAN Organization. To run VLC in docker environment, run the following command. + + $ docker run -v\ + $HOME/Documents:/home/vlc/Documents:rw \ + -v /dev/snd:/dev/snd --privileged \ + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -e uid=$(id -u) -e gid=$(id -g) \ + -e DISPLAY=unix$DISPLAY --name vlc \ + chrisdaish/vlc + +### 18. Vim Editor ### + +Vim is a highly configurable text-based text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems. + + $ docker run -i -t --name my-vim -v ~/:/home/dev/src haron/vim + +### 19. Inkscape ### + +Inkscape is a free and open-source vector graphics editor. It can create, edit vector graphics such as illustrations, diagrams, line arts, charts, logos and even complex paintings. Inkscape's primary vector graphics format is Scalable Vector Graphics (SVG) version 1.1. It can import from or export to several other formats as well but all editing workflow must inevitably occur within the constraints of SVG format. + + $docker build -t rasch/inkscape --rm . + $ docker run --rm -e DISPLAY \ + -u inkscaper + -v /tmp/.X11-unix:/tmp/.X11-unix \ + -v $HOME/.Xauthority:/home/inkscaper/.Xauthority \ + --net=host rasch/inkscape + +### 20. Filezilla ### + +Filezilla is a free FTP solution application software. It supports FTP, SFTP, FTPS protocols. It is a powerful file management tool for client side. It is an awesome open source FTP project which is highly reliable and easy to use. + + $ xhost +si:localuser:$(whoami) + $ docker run \ + -d \ + -e DISPLAY \ + -v /tmp/.X11-unix:/tmp/.X11-unix:ro \ + -u docker \ + -v /:/host \ + -v $HOME/docker-data/filezilla:/home/docker/.config/filezilla/ \ + yantis/filezilla filezilla + +### Conclusion ### + +Running desktop application software using Docker is really an awesome experience. Docker is really an awesome platform for fast and easy development, shipping and deployment of software and packages in any place from home to office to production areas. Running desktop apps with docker is a cool way to try out the apps without really installing it into the host filesystem. So, if you have any questions, comments, feedback please do write on the comment box below and let us know what stuffs needs to be added or improved. Thank You! Enjoy with Docker :-) + +-------------------------------------------------------------------------------- + +via: http://linoxide.com/how-tos/20-docker-containers-desktop-user/ + +作者：[Arun Pyasi][a] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 + +[a]:http://linoxide.com/author/arunp/ \ No newline at end of file diff --git a/sources/tech/20150423 How IP forwarding Helps Connecting Private interface to Internet in Linux.md b/sources/tech/20150423 How IP forwarding Helps Connecting Private interface to Internet in Linux.md new file mode 100644 index 0000000000..f5f4eb16a7 --- /dev/null +++ b/sources/tech/20150423 How IP forwarding Helps Connecting Private interface to Internet in Linux.md @@ -0,0 +1,75 @@ +How IP forwarding Helps Connecting Private interface to Internet in Linux +================================================================================ +Hi everyone, today we'll learn about IP forwarding or Packet forwarding from one network interface to another in Linux using iptables. IP forwarding is a concept to make Linux machine to send data from one network to another as a router. So, it can be used as a **router** or a proxy server that can share internet or network connection from one connection to multiple client machines. + +Here are some easy steps to enable IP Forwarding or Network packets forwarding method. + +### 1. Enabling IPv4 Forwarding ### + +First of all, we'll gonna enable IPv4 forwarding in our Linux Operating System. To do that, we'll need to execute the following command in a shell or a terminal under sudo mode. + + $ sudo -s + + # echo 1 > /proc/sys/net/ipv4/ip_forward + +![Temporary IP Forwarding](http://blog.linoxide.com/wp-content/uploads/2015/03/ip-forward-temporary.png) + +**Note: the above command is enables ip forwarding instantly and temporarily until the next reboot. To enable it permanently, we'll need to open /etc/sysctl.conf using our favorite text editor.** + + # nano /etc/sysctl.conf + +Then, add **net.ipv4.ip_forward = 1** into that file or uncomment that line then, we'll need to save and exit that file. + + net.ipv4.ip_forward = 1 + +![Editing Sysctl](http://blog.linoxide.com/wp-content/uploads/2015/03/sysctl-edit.png) + +To enable the changes made run the following command. + + # sysctl -p /etc/sysctl.conf + +![Enabling Sysctl Changes](http://blog.linoxide.com/wp-content/uploads/2015/03/enabling-changes-sysctl.png) + +### 2. Configuring Iptables firewall ### + +We'll need to allow specific (or all of the) packets to traverse our router. Before that, we'll need to know the interface name of the network devices connected with our Linux box. To get the interface name, we can simply run the following command in a terminal or a shell. + + # ifconfig -a + +![Ifconfig](http://blog.linoxide.com/wp-content/uploads/2015/03/ifconfig.png) + +Here, in our box we have eth2 as network interface which is connected to the internet or a network and wlan2 is the interface where we need to forward the network packets from eth2 using iptables. So, to do so, we'll need to run the following command. + + # iptables -A FORWARD -i wlan2 -o eth2 -j ACCEPT + +Note: Please replace wlan2 and eth2 with the device name available in your Linux box. + +Now, we'll need iptables to allow traffic for already established connections as netfilter is a stateless firewall. To do so, we'll need to run the following command. + + # iptables -A FORWARD -i eth2 -o wlan2 -m state --state ESTABLISHED,RELATED -j ACCEPT + +![Forwarding with iptables](http://blog.linoxide.com/wp-content/uploads/2015/03/forwarding-iptables.png) + +### 3. Configuring NAT ### + +Then, at last we'll need to change the source address as eth2 on packets going out to the internet by executing the command below. + + # iptables -t nat -A POSTROUTING -o eth2 -j MASQUERADE + +![configuring nat](http://blog.linoxide.com/wp-content/uploads/2015/03/configuring-nat.png) + +### Conclusion ### + +Finally, we've successfully configured Packet forwarding from one interface to another interface on our Linux machine having iptables installed as firewall solution. This article enables to connect your private interface to the internet, you don't need bridging the interfaces, you need to route packets coming in on one interface to the other one, thats all. If you have any questions, suggestions, feedback please write them in the comment box below so that we can improve or update our contents. Thank you ! Enjoy :-) + +-------------------------------------------------------------------------------- + +via: http://linoxide.com/firewall/ip-forwarding-connecting-private-interface-internet/ + +作者：[Arun Pyasi][a] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 + +[a]:http://linoxide.com/author/arunp/ \ No newline at end of file diff --git a/sources/tech/20150423 How to Change Default Web Browser and Email Client in Ubuntu.md b/sources/tech/20150423 How to Change Default Web Browser and Email Client in Ubuntu.md new file mode 100644 index 0000000000..d6d21002a2 --- /dev/null +++ b/sources/tech/20150423 How to Change Default Web Browser and Email Client in Ubuntu.md @@ -0,0 +1,76 @@ +How to Change Default Web Browser and Email Client in Ubuntu +================================================================================ +web browserUbuntu ships with a slate of default apps handily pre-installed, including Mozilla’s hugely popular Firefox web browser and Thunderbird e-mail client. + +![](http://www.omgubuntu.co.uk/wp-content/uploads/2014/07/web-browser.png) + +While both of these have their fans neither app is — shock — to everyone’s tastes or needs. We often get e-mails or tweets from people asking us how they can change the default browser in Ubuntu or set a different mail client as the handler for mail links, etc. + +We’re not just talking about installing a different bit of software here but also how you set it as the system handler for a given file, link or content type. + +It is super easy to change a whole slate of default application including web, e-mail, text editing, music and videos players, in Ubuntu. The settings panel where you can make these changes isn’t known to everyone, so we’ll take a quick look. + +### How to Change the Default Browser in Ubuntu ### + +![](http://www.omgubuntu.co.uk/wp-content/uploads/2015/04/change-default-browser-in-ubuntu-750x402.jpg) + +Mozilla Firefox is a solid, open-source and reliable window on the world wide web but it’s not everyone’s browser of choice. And that’s fine. + +To use a different default browser in Ubuntu you will first, rather obviously, need to install a new one. How you do this depends on the one you want: + +- Open-source web browsers, like [Epiphany][1], [Chromium][2] and [IceWeasel][3], are available to install from the Ubuntu Software Center. + +- Major web-browsers, like [Google Chrome][4], [Opera][5] and [Vivaldi][6], must be downloaded from each project’s official website. + +Whichever browser you choose, and however you choose to install it, once you have done so you can continue on. + +![](http://www.omgubuntu.co.uk/wp-content/uploads/2015/04/system-settings-ubuntu-300x215.jpg) + +To change the default browser for opening web links click on in other applications, e.g., instant messengers, Twitter clients, e-mail, etc, you need to use the Ubuntu System Settings tool. + +You can launch System Settings a number of ways. One of the fastest is to the click the Cog icon in the far-right hand corner (far left on RTL systems) and select the ‘System Settings’ menu shortcut. + +1. Open ‘System Settings’ +1. Select the ‘Details’ item +1. Select ‘Default Applications’ in the sidebar +1. Change the ‘Web’ entry from ‘Firefox’ to your preferred choice + +That’s it. + +### How To Change the Default Mail Client in Ubuntu ### + +![](http://www.omgubuntu.co.uk/wp-content/uploads/2015/04/CHANGE-DEFAULT-APPS-UBUNTU.jpg) + +Ubuntu ships with Thunderbird as the default mail application. This means the app will **open automatically when you click on an email address or a [mailto link][7]** in most web-browsers, PDFs, instant messengers, and so on. + +This convenience is super handy if you use Thunderbird, of course. But a lot of us don’t; we may [use a lightweight client like Geary][8], GNOME stalwart Evolution, or rely on a web-mail service like Gmail or Outlook. + +To **change the default mail client in Ubuntu** from Thunderbird to another application open System Settings > Details > Default Applications. Click the drop-down menu next to ‘Mail’ and choose your preferred client from the list. + +To **set Gmail as the default mail client in Ubuntu** you must first install the ‘gnome-gmail’ package by hitting the button below. Once installed open System Settings > Details > Default Applications. Click the drop-down menu next to ‘Mail’ and choose ‘Gmail’ from the list. + +- [Install GNOME Gmail in Ubuntu][9]. + +### Going Further ### + +The same steps listed above can be used to make your favourite music player open when double clicking on a music file, have an application like VLC handle your .avi and .mp4 files, and so on. +-------------------------------------------------------------------------------- + +via: http://www.omgubuntu.co.uk/2015/04/change-your-default-web-browser-in-ubuntu + +作者：[Joey-Elijah Sneddon][a] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 + +[a]:https://plus.google.com/117485690627814051450/?rel=author +[1]:https://wiki.gnome.org/Apps/Web +[2]:https://apps.ubuntu.com/cat/applications/chromium-browser/ +[3]:https://wiki.debian.org/Iceweasel +[4]:https://www.google.co.uk/chrome/browser/desktop/ +[5]:http://www.opera.com/computer/linux +[6]:https://vivaldi.com/#Download +[7]:http://en.wikipedia.org/wiki/Mailto +[8]:http://www.omgubuntu.co.uk/2015/03/install-geary-ubuntu-linux-email-update +[9]:apt://gnome-gmail \ No newline at end of file