Monday, December 28, 2015

How to use Missing Pause/Break key on Dell or almost all laptops

1) click the START, then type REGEDIT into the search box. This will start the registry editor.

2) Explore the Registry, expanding each element
HKEY_LOCAL_MACHINE
-SYSTEM
-Current Control Set
- Control
- Keyboard Layout
Click on the Scancode Map, and EDIT the key values to match that shown below.
i.e. to have values of : 00,00,00,00,00,00,00,00,02,00,00,00,46,e0,44,00,00,00,00,00
Once Done you will need to re-boot your laptop, but after that you can use as the pause/Break Key.

(Option)
If you want you can copy/Paste the text below into a *.txt file.
Save the file onto your desktop and rename as New_Reg_Key.reg because of the *.reg extension you can then double_click the file to add the new registry key.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,46,e0,44,00,00,00,00,00

Thursday, December 17, 2015

How to disable USB storage usage in Ubuntu

Hi,
To stop USB storage in ubuntu, go ahead with these commands in terminal with sudo rights..

1) sudo gedit /etc/modprobe.d/blacklist.conf

Add in last line

2)blacklist usb_storage

and restart. Its done. Cheers...

Thursday, March 26, 2015

40-inch Xiaomi Mi TV 2 smart TV announced for just $320

If you’re an entertainment buff looking for something affordable for your living room, then the 40″ Xiaomi Mi TV 2 will certainly grab your attention. Marked at a low price of only $320 and packed with some really good features, it is bound to make headway in the smart TV market.
The Xiaomi Mi TV 2 comes with a 1080p full HD screen. The crisp display is composed of a Sharp SDP X-GEN LED backlit panel that renders a contrast ratio of 5000:1. It has a slim frame with a thickness of only 14.5mm. The smart TV runs on a MStar 6A908 SoC processor built with a quad core Cortex A9 CPU that clocks a speed of 1.45GHz.
xiaomi-mi-tv-2
The gaming and TV experience is enhanced by a Mali 450 M4 GPU and the MIUI TV software based on the Android 4.4 KitKat OS. An update to Lollipop will be made available later. The Mi TV 2 holds 1.5GB RAM and 8GB storage capacity. For playback and entertainment in general, it includes a H.265 10-bit hardware decoder which supports FLV, MKV, MOV, MP4, MOV, TS and AVI video formats.
Also see: Xiaomi begins selling accessories via Mi India website
The Xiaomi smart TV has Dolby MS12 virtual surround sound technology for audio clarity. It can be purchased in a variety of vibrantly colored rear casings that add to its aesthetic value. If you remember, the company launched a more advanced Android-based smart TV with a 49″ panel of 4K resolution at a modest rate of $645 only last year.
xiaomi-smart-tv
Xiaomi Mi TV 2 smart TV specifications:
– Display: 40″ full HD LED Sharp SDP X-GEN panel, 5000:1 contrast ratio
– Processor: MStar 6A908 Cortex-A9 built with quad core 1.45GHz CPU
– Graphics: Mali-450 MP4 4+2 core GPU
– Memory: 1.5GB RAM, 8GB storage
– OS: Android 4.4-based MIUI TV
– Playback features: H.265 10-bit hardware video decoder, Dolby virtual surround sound
The Xiaomi Mi TV 2 will be released in China on March 31. However, its non-availability outside its home country may be a worry for interested global buyers, and India is currently the only nation expected to receive it too.
http://tanglesolutions.com

Thursday, February 26, 2015

National Stock Exchange 10G switch configuration support in Algo Trading

Hi,
Recently i had configured NSE configuration for 10G Switch (IBM & CISCO). This configuration includes BGP(Border Gateway Protocol), PIM, Multicast forwarding etc. This configuration was based on the template provided by the stock exchange.

If any Stock Broker and member working on ALGO and High Frequency Trading needs support related to switch configuration in NSE Colo in 1G or 10G, can contact me on my email id :

rohitchoudhary1978@gmail.com.

Thanks
Rohit

All Queries are ivited....

Tuesday, February 24, 2015

Don’t buy power bank before you read this

1) What’s power bank?
Power bank serve as an ‘extra battery’ or external charger for your phone or other electronic devices.

2) Where is power bank made from?
Majority of the power banks in the market are actually made in China.

3) How do I charge the power bank?
You can charge your power bank via the charger that came with your phone, computer usb port or using other power bank

4) How long do I need to charge the power bank?
It’s depending on the REAL CAPACITY of the power bank. The larger REAL CAPACITY, the longer charging time may required. Different charging methods may result different charging time as well. Charging with the original charger will be faster than charging with computer usb port.

5) Why sometime I need longer time to charge the same power bank?
Even though using the same charging method, the charging time may be differ due to environment,temperature, power flow and etc

6) What is mAh?
mAh mean milli Ampere Hour, the capacity of the power bank is measure with mAh

7) A 12000mAh REAL CAPACITY power bank, able to charge a 1500mAh capacity phone for 8 times full?
This is a common mistake make by most of the people. For rough calculation of the total charge time, kindly use this formula
REAL CAPACITY * conversion rate * phone battery health / phone capacity = total charge times
EXAMPLE: 12000 x 0.8 x 0.8 / 1500 = 5.12 charge times (0.5-1 times plus minus)

8) What’s conversation rate?
Conversation rate is the remaining percentage of the battery after the battery lost in heat or PCB operation.

9) What’s phone battery health?
In simple, it’s mean how‘healthy’ your phone battery is. Phone battery storage capacity will be lower and lower. That’s also the reason why our phone can last longer when it’s newly bought than after 3-6 months we used it. Different mobile phone models also will affect the calculation as some phone drain battery faster than the other.

10) What’s PCB?
PCB means Printed Circuit Board,its control all the operation flow inside the power bank. A good quality PCB will allow the power bank to charge more and have better durability

11) What’s 18650 power bank and what’s Li-Polymer power bank?
The common type will be 18650 and a better type will be Li-Polymer

12) What’s the different between 18650 and Li-Polymer?
- 18650 size and dimension are fix. Li-Polymer size and dimension are flexible.
- 18650 produce more heat. Li-Polymer are much more safer
- 18650 are cheaper. Li-Polymer are more expensive
- 18650 have higher self discharge rate.Li-Polymer have a very low self discharge rate
- 18650 battery durability will drop faster.  Li-Polymer battery capacity are more durable

13) What’s the common mAh use in 18650?
Common mAh use in 18650 is around 1300mAh to 2200mAh.

14) What’s the common REAL CAPACITY in 18650 power bank in the market?
- Power bank using 1pcs 18650 is 1200mAh – 2600mAh
- Power bank using 2pcs 18650 is 2500mAh – 4400mAh
- Power bank using 3pcs 18650 is 3750mAh – 6600mAh
- Power bank using 4pcs 18650 is 5200mAh – 8800mAh
- Power bank using 5pcs 18650 is 6500mAh –11000mAh
- Power bank using 6pcs 18650 is 7800mAh –13200mAh
- Power bank using 7pcs 18650 (no info)
- Power bank using 8pcs 18650 is 10400mAh –14400mAh

15) Is there any power bank use higher than 2200mAh per 18650?
Yes. There are, but it’s not common due to the expensive pricing.

16) What’s the different between branded power bank and generic power bank?
Branded power bank mostly sell in REAL CAPACITY. Generic power bank mostly sell in MARKING CAPACITY. That’s the reason why you will never see any branded power bank (standard size) have anything as high as 30000mAh – 50000mAh. That’s also the reason why a good 12000-13000mAh power bank are able to charge more or about the same like the market 30000-50000mAh power bank

17)  Is it true branded power bank won’t explode and generic power bank will explode?
Anything to do with battery, will have chance to explode. No matter it’s branded power bank or generic power bank.But chances for both branded and generic power bank to explode are near to 0%.If power bank is easy to explode, everyone will use power bank in war instead of bomb


Courtsey : http://tanglesolutions.com

Thursday, January 8, 2015

Generate CSR for Red Hat Linux Apache / SSL Server

Generate CSR for Red Hat Linux Apache / SSL Server

Step 1: Generating the Private Key


   1. Use the cd command to move to the /etc/httpd/conf directory.

   2. As root, type in one of the following three commands to generate your key:

   3. If you're using Official Red Hat Linux Professional and you want to use the included password feature, type in the following command: make genkey

   4. Your key will be generated and you will be asked to enter and confirm a password. Please note that you will need to remember and enter this password every time you start your secure Web server, so don't forget it.

   5. If you're using Official Red Hat Linux Professional and you don't want to be required to type in a password every time you start your secure Web server, use the following command instead of make genkey to create your key (note that the following command should be typed in all on one line): 


            /usr/sbin/sslgenrsa -rand /dev/urandom -out ssl.key/server.key 2048

   6. Then use the following command to set the correct permissions on your key: 


            chmod go-rwx ssl.key/server.key

   7. If you use the above commands to create your key, you will not need to use a password to start your secure Web server. However, we don't recommend that you disable the password feature for your secure Web server, since it decreases the level of security for your server.

   8. Your key will be created and saved to a file named server.key. If you're using Official Red Hat Linux Professional, server.key will be located in the /etc/httpd/conf/ssl.key directory. If you're using Official Red Hat Linux Professional, International Edition, server.key will be located in /etc/httpd/conf.


Step 2: Create the Certificate Signing Request


   1. In the /etc/httpd/conf directory, become root and type in one of the following two commands:

   2. If you're using Official Red Hat Linux Professional, type in the following command: 
           make certreq

   3. If you're using Official Red Hat Linux Professional, International Edition, type in the following single command (all on one line): 
           /usr/bin/openssl req -new -key /etc/httpd/conf/server.key -out /etc/httpd/conf/server.csr

   4. You will be prompted for your password (if you used a password when you generated your key). Type in the password, if necessary.

   5. You'll see some instructions and you will be prompted for responses. Your inputs will be incorporated into the CSR.

   6. When you've finished entering your information, a file named server.csr will be created. If you're using Official Red Hat Linux Professional, server.csr will be located in the /etc/httpd/conf/ssl.csr directory.

   7. You have just created a key pair and a CSR.

   8. The server.csr file contains your certificate request. To copy and paste the information into the orderform, open the file in a text editor that does not add extra characters (Notepad or Vi are recommended).

   9. Go to our website ssl.nu for the SSL Certicate request


Terms defined:
Country Name (C):
Use the two-letter code without punctuation for country, for example: US or CA.

State or Province (S):
Spell out the state completely; do not abbreviate the state or province name, for example: California

Locality or City (L):
The Locality field is the city or town name, for example: Berkeley.

Organization (O):
If your company or department has an &, @, or any other symbol using the shift key in its name, you must spell out the symbol or omit it to enroll.  Example: XYZ Corporation

Organizational Unit (OU):
This field is optional; but can be used to help identify certificates registered to an organization. The Organizational Unit (OU) field is the name of the department or organization unit making the request.

Common Name (CN):
The Common Name is the Host + Domain Name. It looks like "www.company.com" or "company.com".
Note: When prompted for your "first- and lastname", enter the desired Common Name.

SSL Certificates can only be used on Web servers using the Common Name specified during enrollment. For example, a certificate for the domain "domain.com" will receive a warning if accessing a site named "www.domain.com" or "secure.domain.com", because "www.domain.com" and "secure.domain.com" are different from "domain.com".

Networking4all certificates can only be used on Web servers using the Common Name specified during enrollment. For example, a certificate for the domain "domain.com" will receive a warning if accessing a site named "www.domain.com" or "secure.domain.com", because "www.domain.com" and "secure.domain.com" are different from "domain.com".


Please do not enter your email address, challenge password or an optional company name when generating the CSR.

Courtsey : http://tanglesolutions.com