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Posts Tagged ‘technology’

EC2 Micro Instance announced by Amazon

September 9, 2010 Leave a comment

This post is been migrated to INITCRON.org


Amazon announced today launch of  “Micro”  instance.  As per AWS team, this is to  fulfill the needs of customers who have asked   for a lower priced instance type that could satisfy the needs of their less demanding applications. Micro instances are optimized for applications that require lower throughput, but which still may consume significant compute cycles periodically. Micro instances provide a small amount of consistent CPU resources, and also allow you to burst CPU capacity when additional cycles are available. Specifications for micro are as follows,

Instance Type:      t1.micro

Memory:     613 MB

Processing Power :      Small Amount of Consistent CPU.  Up to 2 EC2 Computing Units (for short periodic bursts)

Storage :                 Elastic Block Storage (EBS) alone.

Cost: $0.02 per instance hour for linux/unix usage,  $0.03 for windows usage


Amazon EC2 Small vs Micro Cost Comparison
Amazon EC2 Small vs Micro Cost Comparison


Cost Comparison :  Small vs Micro

Amazon small instances costs 0.085 USD per instance-hour.  The new Micro instance  costs 0.02 USD per instance-hour.  Its a great cost saving for someone who is evaluating amazon ec2 cloud technologies for educational, technical evaluation purposes, or to run low

resource intensive  specialized  applications.  For someone who is considering running specialized applications  for long term, Micro Reserved instance would save great deal of cost on top of this.



Positives

  • Inexpensive
  • Good  for  EC2 evaluations, educational purposes
  • Good for Low bandwidth/processing appliances such as dns servers, load balancers,  network appliances
  • Good for Low traffic websites. Better than opting for a shared web  hosting plan

Negatives

  • Supports EBS  (Elastic Block Storage)  only.  This is a disadvantage as you’ll have to shell extra for the storage
  • Burstable processing power may be inadequate for running a medium traffic applications which need consistent performance. Rackspace small instance, which costs lesser than  ec2 micro,  is comparatively faster with respect to processor speed according to some  benchmarks available.

EC2 Micro instance is a good news  for the one’s who have been waiting for a low cost, low powered instance to get started with and run small applications and scale up as and when needed.  Also useful for startups which are cash strapped to get online with their apps quickly. However, one should also evaluate other cloud providers such as Rackspace before making a choice.

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HowTo Setup VPN Server On Debian 5.0 Lenny

February 18, 2009 7 comments

This post is been migrated to – INITCRON.org

Setting Up VPN Server On Debian 5.0 Lenny

1. Install pptpd
apt-get install pptpd

2. Enable IP Forwarding

edit /etc/sysctl.conf, uncomment following
#net.ipv4.ip_forward=1

3. Configure pptpd
Edit /etc/pptpd.conf
Add local ip (server’s ip) and remote ips (range of ips which can be offered to clients)
e.g.
localip 10.0.0.1
remoteip 10.0.0.21-40,10.0.0.51

4. Configure DNS Servers
Edit /etc/ppp/pptpd-options
Add dns servers to ms-dns
e.g.
ms-dns 125.17.130.129
ms-dns 208.91.169.198

5. Add Users Authentication to /etc/ppp/chap-secrets
# Secrets for authentication using CHAP
# client    server    secret            IP addresses
test        pptpd    test            *

6. Restart pptp daemon
/etc/init.d/pptpd restart

7. Open  tcp  port  1723 on your router/firewall to be able to  connect to the vpn server from the world.

8.  Test Connection

Ubuntu Studio: A Multimedia Professional’s Dream Distro: Pictorial Walkthrough

August 31, 2008 Leave a comment

This post is been migrated to INITCRON.org

Ubuntu Studio is a tailor made  multimedia creation flavor of Ubuntu aimed at audio/video, graphic editors, both enthusiasts and professionals. One could setup a decent studio, and connect midi devices, synthesizers, audio/video recording devices, additional sound cards and installing ubuntu studio on the system. Look and feel of ubuntu studio is very attractive. Folks who are not much interested in studio tools, but like the look and feel of it, can  stillinstall and use ubuntu studio theme on top of their existing ubuntu system ( sudo apt-get install -yq ubuntustudio-look ).

Ubuntu Studio comes with a kernel which is been  tweaked to allow higher priority to graphics, audio  and video applications which should give effectively better performance for these applications and reduce latency, jitter etc. Ubuntu Studio comes with Some of the tools that come with ubuntu studio are,

Graphics: Blender 3D Modeler, GIMP, InkScape, Synfig Studio, Agave, Scribus
Audio Production
: Audacity, Ardour, Mixx, Muse, RoseGarden, QSynth etc. etc…
Video Production
: Kino, Open Movie Editor, Stop Motion

For more information on Ubuntu Studio please visit their homepage at http://ubuntustudio.org and also have a look at the wiki article on ubuntu studio at  http://en.wikipedia.org/wiki/Ubuntu_Studio.

Setting up Reliance USB Modem ( Huawei Technologies Co., Ltd. E620 USB Modem ) on Ubuntu 8.4 LTS “Hardy Heron”

August 15, 2008 33 comments

This post is been migrated to INITCRON.org

In this article I am going to provide you a simple and quick way to setup reliance data card on ubuntu hardy heron. Most of the tasks could be done with the script that I am attaching here.

1. Plugin Data Card

Running Setup Script From a Terminal2. Download setup script from here. Open a terminal and run it as ” bash reliance_setup.sh “. It will ask for your data card connection number. Provide it when it does and press enter. The script will install gnome-ppp gui package, wvdial, and modify the necessary system files to setup permissions to dial the reliance connection using ppp.

3. Once set up, the script will launch gnome-ppp dialer. You need to provide following,

Username

Password (same as usrname. the connection number)

Phone Number : #777

4. Click on “Setup” option from the dialer window. From modem tab, click on “Detect” button which will automatically detect your usb modem in most cases. If not, you’ll have to choose it manually from the dropdown menu. Choose speed as 115200 from the drop down list.

5. You could leave rest of the options as it is for now. Close the setup window and click on “Connect”. You are all ready to rock. A connection window will appear, from which you could click on “Log” to see what is happening while connection is progress.

Miro : Watching YouTube Videos Made Offline and Simple

July 29, 2008 1 comment

This post is been migrated to INITCRON.org

Are you tired of waiting till your favorite yououtube video stream is being buffered to avoid jitters?  Are you looking for an application to save youtube videos offline and watch them at your convenience
later? Do you want to save multiple parts of a video and watch it as a whole in one go? …. Try Miro.

Miro is an application which turns your computer into an internet TV video player. It has a concept of channels whereas viewers could browse through thousands of channels available and subscripbe to them and receive regular feeds downloaded at your desktop, some of the most popular being ‘National Geographic Video Shorts’, Discovery Channels Video Podcasts, Cartoons, Spanish Learning Channel etc.

Here are few interesting features available with Miro:

1. Watch YouTube Videos: One can search, download and watch YouTube videos and videos from maany more video streaming sites such as Google Videos, Yahoo Videos, Blogdigger, Blip.tv, DailyMotion. The application actually downloads the videos to harddisk, making it available to be watched offline. By default the video expires in 5 days, which can be changed with option to store it permanently on the drive.

2. Video Player: Miro also acts as a video player for the internet videos. It uses embedded player such as gstreamer, xine in linux and vlc on windows, and quicktime on Mac to play the videos. One could
actually watch videos in fullscreen mode, which apparently looks better than that watching it on youtube. And users could play videos, which generally come in the parts, as if it is a single video.

3. Cross Platform: Miro is a Open Source Software, released under GPL License, and is avaialble on Linux, Windows, and Mac Operating Systems.

4. Widely Supported Formats: Miro supports a wide range of video formats including MPEG, Quicktime, AVI, H,264, Divx, Windows Media, Flash Video(Youtube Videos) and many more.

5. Channels and Automatic Video Downloads: Miro comes with an in built channel guide, which users can brows through and select thier favourite channels. Once added, users can configure miro to download videos automatically as and when added.

6. Podcasts Compatible: You could add your podcasts that you have been downloading automatically with itunes so far, to Miro as a channel. Once added, all new podcasts can be downloaded automatically.

7. Share: Users could search videos, watch them and share with friends using social sites such as del.icio, digg, reddit etc.

Even though its released as a beta, overall, Miro is a wonderful app to have on your desktop.

How to install Broadcom BCM94311MCG WiFi Card on OpenSuse 10.3 using NDISWrapper

May 18, 2008 1 comment

This post is been migrated to – INITCRON.org

Here is a howto to install Broadcom  wireless card drivers on opensuse 10.3  using ndiswrpper and windows drivers. I installed  Broadcom Corporation BCM94311MCG wlan mini-PCI adapter on  Compaq Presario 3611AU. The process of Installing windows drivers on linux using ndiswrapper is more or less same for most of  the adapters.

  • Windows Drivers : You need to download download windows drivers to get started with. Windows XP drivers are generally safe to be used with ndiswrapper. I downloaded xp drivers for broadcom adapter from hp/compaq site. ftp://ftp.hp.com/pub/softpaq/sp36501-37000/sp36684.exe.
  • Extract the windows driver exe using cabextract. cabextract  sp36684.exe
  • Install ndiswrapper package using yast. This should be straight forward.
  • Unload the bcm43xx module.  rmmod bcm43xx
  • Load ndiswrapper using modprobe. modprobe  ndiswrapper
  • Load windows drivers extracted in step two. Load the .inf file using ndiswrapper.  ndiswrapper -i *.inf
  • Blacklist bcm43xx module, not to be loaded at boot.  echo “blacklist bcm43xx” >> /etc/modules.d/blacklist
  • Configure ndiswrapper to be loaded at the boot time.

Ubuntu 8.04 LTS ‘Hardy Heron’ – You’ll never go back

April 24, 2008 5 comments

This post is been migrated to INITCRON.org

The much awaited version of ubuntu, named ‘Hardy Heron’ (ubuntu 8.04) is officially been launched today. “You’ll never go back” is what canonical says on their official website http://www.ubuntu.com . Ubuntu releases LTS (Long Term Support) every two years and provides 3 years and 5 years of support respectively for desktop and server editions. Last one of the series was Ubuntu LTS 6.06, released in June 2006. In addition to LTS, ubuntu has a smaller release cycle of 6 months which are supported for a year and half, last one being 7.10 ‘Gutsy Gibbon’.

Features

Here are some feature highlights for the latest ubuntu version,

  • internet toolsFirefox 3 beta 5 : Improved browsing speeds : lightweight Mozilla Firefox 3 Beta 5 means faster browsing with improved performance and less use of RAM as compared to the older versions of the firefox which were memory hogger and slower.  Some of the noticeable features of new firefox are  it allows you to bookmark, and subscribe to the rss feeds directly from the address bar, shows summary of the website while you are typing the address, shows recently closed tabs  etc. Click on  View -> Switch Page Direction, and see everything getting aligned to the right hand side.
  • Wubi : Painless Migration From Windows : Are you a windows user and always been wanted to give linux a spin ?? Then wubi is a bless to you (http://wubi-installer.org). All you need to do is, run wubi’s exe file. It will install ubuntu as any other windows application, without disturbing your windows partitions and prepares you to boot into ubuntu after a reboot. Wubi installs ubuntu on the top of windows as a large file. If one chooses to get rid of ubuntu, they could remove it like any other application from add/remove programs.
  • Gnome 2.22 : Enhanced User Experience : Gnome 2.22 comes with improved look and feel, new applications such as cheese (needs to be installed as an additional package gnomeon ubuntu), new networked filesystem GVFS which overcomes GNOME VFS shortcomings, improved support for DVD and digitial TV, international clock, remote desktop viewer and many more enhancements to make user experience. One thing clearly missing is the gnome-control-center. Its just disappeared from the menu. To open the control center, one has to open a terminal and type in gnome-control-center to open it.
  • Dash : Better System Performance : since 6.10 , ubuntu has changed the default system shell to dash(the Debian Almquist Shell) instead of /bin/sh to improve overall system persormance. This might cause few scripts to break though for users who are migrating from 6.06 LTS to 8.04 LTS.
  • Multimedia : Get…Set….Go in minutes : The latest version of ubuntu installing codecsmakes it smoother to play any audio/video formats quickly.  If the codec for a particular format is not present, it immediately fires up synaptic and asks your permission to install the codec. All it takes is a couple of clicks and you are ready to get on with your music/videos.  Certainly saves a time and efforts for newbies.  Installing flash plugin was a piece of cake as well unlike the older version of ubuntu where one had to install it manually. Default audio player comes with magnatune, jamendo stores as additional features. For video playback, I would still recommend using mplayer.
  • System Hibernate : I could successfully put my laptop to hibernate mode and bring it back, which I could not do with the older versions.
  • Hardware Testing : This is a utility which serves a its purpose well. You can run it from hardware testingSystem -> Administration -> Hardware Testing. It gathers information about your hardware, runs  manual tests to verify your hardware (audio, network controllers, screen resolution, mouse, video, keyboard, internet connection)  works and submits information to launchpad if you have an account. It is recommended you submit the results to launchpad in order to assist  developers fraternity to come up with better hardware support.

Issues

Is the new version of Ubuntu comes without any bugs and issues?? Ubuntu flolks claim hardy heron is the most stable and fastest ubuntu ever. Neverthless, I could see the following issues with my copy of installation atleast.

  • System hangs after opening multiple applications. I just opened around 10 lightweight apps, and before even using them, it got hung. Strange enough, my mouse was cruising smoothly all over the screen, but not a single application was responding. Does not look like a load issue, most likely a gnome/app bug.
  • NetworkManager restart ‘ in a terminal fails to restart network manager.