Tuesday, June 14, 2011

Apple unlocked iPhone 4 in the US

 Apple unlocked iPhone 4 in the US

Will this happen on Wednesday 6/15/11 ?
update: Apple Store
unfortunately it is only GSM phone with the limitations listed below.More and more sources are reporting this info about factory unlocked iPhone.
Already many countries around the world sells unlocked iPhone and the closest one is Canada.The bad news would be high price ~ 600 additionally there is no information indicating if the phone would be both GSM and CDMA as well as no indication about including 1700mhz frequency which is missing for 3G usability on the t-mobile network in the US.The good news would be for the GSM version of the phone there is no need for contract on ATT, usable as a phone around the world without the hustle of software/ hardware unlock.http://www.zdnet.com/blog/btl/unlocked-i…ag=nl.e550
http://www.amazon.com/Apple-16GB-Quadban…769&sr=8-2
http://vrpc.com/att-vs-t-mobile-frequency/

Remove Mac Malware

 Bug  Remove Mac Malware (Fake Defender etc.)

Apples official removal steps: http://support.apple.com/kb/ht4650

Start spotlight (using keyboard “command” key + “space bar” key)
type Activity Monitor and press return.
After the Activity monitor opens only “My Processes” list is displayed and need to be changed to “All Processes” from the drop down menu in the middle/ upper right corner of the Activity monitor window.

Depending on the malware variant name you are removing you need to find it and select it under the “Process Name” column.
Once selected click the red stop sign “Quit Process” button which is located on the upper left corner of the Activity Monitor window and click on “Force Quit”

Open Finder and go to the Applications folder.
Again depending on the malware name locate it in the Applications folder and drag it to the trash. (make sure to empty the trash once done)

Aditionally you should remove the malware from the Login Item list which is located in the user accounts under System Preferences.

Using spotlight type accounts and press return.
Click on the Login Items button.
Select the coresponding malware name you are removing and click on the minus button located below the list of Login Items.

Make sure to install all available updates from the Software Updates under the apple menu.

Consider getting antivirus. Smile

Another good website with removal information: http://blog.macguy.info/2011/05/malware-on-mac.html

Friday, June 10, 2011

Cooling the datacenter

 If you had to work in air-conditioned datacenter and or directly next to it you know how much noise all the machinery can generate.

To be green it would be nice to setup datacenter with low energy consumption servers with passive cooling as well as no air-conditioning.

this solution should help with the no air-conditioning cooling part: http://arstechnica.com/business/news/201…nology.ars

And this is Facebook approach: http://www.matternetwork.com/2011/4/face…server.cfm

One mac many OSes

With a single mac computer there is no need to have multiple machines in order to boot windows, mac and linux.

Good place to start: http://lifehacker.com/5531037/how-to-tri…p-required

This solution is great if native OS is needed in order to use hardware to the full potential or if the software virtualization solution is not sufficient for other reasons.

For the software virtualization solution my choise would be:
1. open source VirtualBox
or paid solution :
2. Parallels

3. VMWARE Fusion

Photo Online Slideshow Presentation

 PowerPoint or Keynote are great for creating presentations and slideshow on your windows or apple computer.

Here are some options if you need to create presentations or slideshow online:

1. http://prezi.com/
2. http://office.microsoft.com/en-us/web-ap…_id=SEARCH
3. http://picasa.google.com/features.html

Cell Towers

 It is not always easy to know the location of nearby cell towers.

If you need this info here is one link which can help:
All US cell carriers:
http://www.cellreception.com/towers/or one for T-Mobile towers:
http://t-mobiletowers.com/towersearch.as…&zip=90025

Video Media Center

 Quick and easy way to turn you computer connected to the living rooms flat screen TV is to use boxee software.

http://www.boxee.tv/
Easy to install and configure plus it is available for Linux, Mac and Windows.
Here is a link to work around for ubuntu 11.04: http://maxolasersquad.blogspot.com/2011/…natty.html
They have nice boxee app for iPhone as well which acts as your remote.Other nice option is XBMC which has even more options for installation: Linux, Mac, Windows, Apple TV and Live CD boot disk.

Thursday, June 9, 2011

Mac Antivirus

 Bug  Mac Antivirus

Even the macs get infected with malware.

To protect yourself good antivirus will help.
Here are two options to get you started:

Eset Cybersecurity for Mac
Price: 1 mac/ year 39.99

Sophos Anti-Virus for Mac Home Edition
Price: 1 mac/ year free

ClamXav
Price: 1 mac/ year free

Tuesday, June 7, 2011

Video Chat

 What to use if Skype is not the option you are looking for.

For Windows, Mac, iPhone and or Android client here are two options:

http://www.oovoo.com/home.aspx

http://www.voxox.com/

Sunday, June 5, 2011

Video DVD movie doesn’t play on ubuntu 11.04

 Video  DVD movie doesn’t play on ubuntu 11.04

The system is missing restricted extras and dvd library.

you can enable it in terminal:

1. sudo apt-get install ubuntu-restricted-extras
2. sudo /usr/share/doc/libdvdread4/install-css.sh
3. insert dvd

Software to archive personal DVD library

 Video  Software to archive personal DVD library

My favorite is handbrake which is available for Linux, mac and windows.

Make sure you have restricted extras and DVD play capability configured http://vrpc.com/showthread.php?tid=19.

From the terminal:
1. sudo add-apt-repository ppaConfusedtebbins/handbrake-releases
2. sudo apt-get update
3. sudo apt-get install handbrake-gtk

the newly installed software can be accessed in the sound and video application menu or by using the launcher search feature for handbrake.

http://handbrake.fr/

Saturday, June 4, 2011

AT&T VS T-Mobile Frequency

 T-Mobile

Frequency on UMTS (W-CDMA)/HSPA 3G (not true 4G)
1700 MHz/2100 MHz
Frequency on GSM/GPRS/EDGE 2G
850 MHz and 1900 MHz
http://en.wikipedia.org/wiki/T-Mobile_USA

AT&T
Frequency on UMTS/HSPA 3G
850 MHz/ 1900 MHz
Frequency on GSM/GPRS/EDGE 2G
850 MHz and 1900 MHz
http://en.wikipedia.org/wiki/AT&T_Mobility

High Density WiFi Deployment

 Brick  High Density WiFi Deployment

Researching options:

1. 25 Cisco access points with controler
http://www.cisco.com/en/US/products/hw/w…ducts.html
2. 25 Meraki access points with cloud based controler
http://meraki.com/products_services/enterprise
3. 25 Ruckus access points new design with 16 antennas and ZoneDirector controller hardware/ software.
600 per unit,Power injector 50, 25 aps controller 1125 4000
560 yearly support
http://www.ruckuswireless.com/enterprises/education
Controller: http://www.ruckuswireless.com/products/controllers
4. 12 Xirrus access points new design with 4,8 or 16 access points in one device with on board controller and controlled using XM-3300-CC server appliance or software version on existing server. Price ~ 750 per radio. If one unit has 4 access points the price would be 4 x 750.
http://xirrus.com/products/arrays-80211abgn.php
Controller: http://xirrus.com/products/management.php

Nice comparison of Ruckus and Cisco on tomshardware.com

Friday, June 3, 2011

550 5.7.1 Message rejected as spam by Content Filtering Exchange 2010

 One solution is to add the senders email address to the exception list in content filtering properties.

1. Open EMC
2. expand OC
3. Click on Hub Transport
4. Anti Spam tab
5. Right click on Content Filtering
6. Exceptions tab
7. ender and add senders email

I don’t recommend this if exchange is the only spam filter because spammers can spoof the from address.

Ubuntu Tweak

 must have utility for ubuntu users.

http://ubuntu-tweak.com/

Free your iPhone from Apple

 good links to start:

http://blog.iphone-dev.org/
http://www.iphonehacks.com/
http://iclarified.com/tutorials/iphone/index.php
Make sure to read carefuly if you need your phone to be unlocked and used on different cell provider beside ATT.

WiFiFoFum

 iPhone wifi stumbler tool for detecting and troubleshooting wifi networks.

Unfortunately banned in the apple store luckily it is available on cydia.

http://www.iphonehacks.com/2010/03/wifi-…-free.html

Pulse News

 My favorite news tool for iPhone.

They have nice version for iPad as well.

http://itunes.apple.com/us/app/pulse-new…88673?mt=8

VMware ESXi

 VMware ESXi vs. XenServer: Cloud and Desktop Feature Showdown

http://www.developer.com/services/vmware…wdown.html

Moving ESXi installation to USB key
http://serverfault.com/questions/272178/…to-usb-key

Linux Distributions

 Hard decisions on which flavor of Linux to choose.

Personal choice is Ubuntu (good success rate installing it on various hardware).
I am always impressed with opeSUSE clean design.
Good place to see the latest Linux distribution updates is distrowatch.com

Malware Help

 Bug  malware took over your computer?

To clean malware infected computer try to use malwarebytes
Usually you can clean your computer with malwarebytes in safe-mode combined with msconfig edit of startup programs configuration.

ThinkGeek

 Fun place to buy gifts for friend geek Smile

http://www.thinkgeek.com/index.shtml

brickhousesecurity

 Lots of stuff to buy as gifts for your spy friends. Smile

http://www.brickhousesecurity.com

CPU Temperature

 Monitor CPU Temperature

Nice little utility to monitor CPU temperature.

http://www.alcpu.com/CoreTemp/

configurable to run in the system tray or can be extended and display readings as a windows 7 gadget.

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