Showing posts with label about. Show all posts
Showing posts with label about. Show all posts
Wednesday, March 15, 2017
Everything About Ip Addressing
Everything About Ip Addressing
Ip addressing-
Ip Address-Ip stands for internet protocol.
It is a logical and unique address of a system (NIC), in a network . which is use for uniquely identify a system in the network.
Or
It is a logical and unique address of a system in the network by which two or more systems can communicate to each other within the network .
There are two types of Ip address-
1) Public ip address
2) Private ip address.
1) Public ip address- For the public ip address we have to pay to ISP (Internet service provider) to buy the ip address . With the help of public ip we can access internet (Web) .
2) Private ip address- For the private ip address we don’t have to pay to anyone but by the private ip we cannot access internet.
Note- These addresses are reserved for LAN (local area network) communication.
The first ever LAN was introduced in 1969 by ARPA in USA for DOD named as ARPANET.
ARPA- Advance research and project agency.
DOD- Department of defence .
There are two versions of Ip address-
1) Internet protocol version-4 (IPV-4)
2) Internet protocol version 6 (IPV-6)
1) Internet protocol version-4 (IPV-4) – It is a 32 bit dotted decimal address. These 32 bit are divided into 4 equal parts and every part is called an Octate.
Total number of Ip address in IPV-4 =232 – 4.3 Billion.
2) Internet protocol version 6 (IPV-6)- It is a 128 bit hexadecimal address. Those 128 bit are divided into 8 equal parts and every part is called a field or block.
Total digit {0-9 , A to F}
These 8 blocks are separated by sign (:)
Example- AA00:2A00:A100:2ABC:112A:0000:2BCA:001C
Total number of Ip address in ipv-6= 2128
Connected pc in the network is called host or node.
Connected pc in the network with Ip address is called Host.
Ip address is a combination of Network bit + Host bit.
Ip addressing-
1) IPV-4 1 Octat = 8 bit
maximum value of an octate in binary-
1 1 1 1 1 1 1 1
In decimal –
=27 + 26 + 25 +2 4 + 23 + 22 + 2 1 +20
= 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1
= 255
Using formula- n0 = 1
Minimum value of an Octate in Binary - 0 0 0 0 0 0 0 0
In decimal = 07+ 06 + 05 +0 4 + 03 + 02 + 01 + 00 =0
Standard value of an Octate – 0-255 = 256
Range- The value of the first Octate is called Range.
Class- These 256 Ranges divided into 5 parts according to it’s use and every part is called a Class.
Subnet mask –
A subnet mask is a 32 bit logical value. Which show that in a given Ip address how many number of network bit and how many number of host bits are available.
Note- Without any subnet mask IPV-4 address has no value .
IETF – Internet engineering task force
IANA- Internet assigned number authority
ICANN – Internet corporation for assigned network number
RIR – Regional internet registry
ISP- Internet service provider
S.no. Class Range Subnet mask NID HID Formula Use
1. A 0-127 255.0.0.0 8 24 N.H.H.H Unicasting+Broadcasting(some)
2. B 128-191 255.255.0.0 16 16 N.N.H.H Unicasting+Broadcasting(some)
3. C 191-223 255.255.255.0 24 8 N.N.N.H Unicasting +Broadcasting(some)
4. D 223-239 - - - - Multicasting
5. E 240-255 - - - - Research & Development
There are three types of communication in IPV-4 :-
1. Unicasting - One to one communication
2. Multicating - One to group communication
3. Broadcasting - One to all communication.
If you want to communicate multiple systems by the help of Ip address without any L-3 device (Router)
1.The Class of Ip address between the systems must be same.
2. The Range must be same.
3. The network must be same.
Reserved private Ip addresses –
Class A - 10.0.0.0 {10.0.0.1 to 10.255.255.254}
Class B - 172.16.0.1 to 172.31.255.254
Class C - 192.1.0.1 to 192.255.255.254
Those Ip addresses cannot be configured –
1. 0.xxxx.xxxx.xxxx – Network can never be off or 0
Available link for download
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Monday, March 6, 2017
Everything about Cydia with beginners guide
Everything about Cydia with beginners guide
What is Cydia And A Beginners Guide
on jailbroken apple devices like iphone, ipad, ipod, ipod touch, apple tv, and apple watch. We can say this is a alternate of Apples app store here
we can find more apps on Cydia most package are free here.
Cydia provides GUI (Graphical User Interface) to using Advanced Packaging Tool (APT) repositories to install software unavailable on the App Store but device must be jailbroken.
Cydia enables users to find and install open source packages.
Cydias storage mechanism enables users to downgrade a device to a prior version of iOS.A person with a jailbroken device who upgrades to
a non-jailbreakable version of iOS can choose to downgrade back to a jailbreakable version
What Cydia home page say "Cydia is an alternative to Apples App Store for "jailbroken" devices, at this time including iPhones, iPads, and iPod Touches,
specializing in the distribution of all that is not an "app".
Cydia is not available in Apples App Store, nor is it a website: it is installed on your device using a "jailbreaking" tool, such as Pangu or TaiG."
Cydia Guide for Beginners
How to Install Cydia Tweaks and Apps
Its simple but not like Apples own app store.
To add a tweak from cydia
1- Search the tweak on Cydia Search
2- Tap on the Tweak
3- Now click install on upper right corner of display
4- Confirm it.
Cydia will now download and install the package. Depending on the tweak cydia may ask to respring dashboard (reboot).
In some case you didnt find the icon on springboard find them under setting and configure them.
How to Add Repos to Cydia
Repositories (Sources) are servers where you find tweaks. Cydia comes pre-loaded with the ModMyi and BigBoss repo
these two of the largest repos containing several thousand tweaks already.
But some useful and cool tweaks are not available these to repo so we have to add the desired repo to the Cydia.
Steps to adding repo -
- Open Cydia
- Tap on Manage
- Now tap on Sources
- You will be shown a list of repos already added to Cydia.
- Tap on Edit on top-left
- Now tap on Add on top-right
- Add the repo URL and tap on Add Source
- Cydia will access the URL and try to add the repo.
Available link for download
Wednesday, November 2, 2016
How Much Google Know About You
How Much Google Know About You
Do you ever stop to think that how the company Google knows everything about you? If you ask Google anything, it’s incredibly difficult not know the answer, do you think your escape from that? Google is a great company and terrible, depending on your point of view with which you see. The services offered by this tech company have few or no rivals, and that is why millions of people around the world use Google products. But these products are not free, no matter you’ve never paid a penny for them, all that Google offers comes with a price that is written in small print on the service contract. Google tracks almost every move on the net, even when we’re not online. Google knows so much about us, we know perhaps better than some of our friends or even our mother. Although there are several ways of deciding who share and not with Google, and to what extent you are tracked by the company, most people have no idea of ??this, and those who know the tools and use them still do not have a total escape from the eye all-seeing, even if you stop using Google’s services.
I Hope This Article Helps You If You Getting Any Problem Related To This Article You Can Comment By Below Comment Box We Will Help You And If You Need Any Trick Or Software Or Hack You Can Mail Us We Will Try To Give That Article We Happy To Help You All Guys.Thank You Share And Subscribe Us. #Pankaj Patidar Rock
How Much Google Knows Me ?
If we look a little where is eyeing this giant, we can calculate roughly how much the company knows about us. Sure more than once brought you a smile to see how the Google search results are exactly what you want, as if the search was made especially for you, and that’s because it is. Let’s see if you’re still smiling at the end of this article. If you want to know what the Internet says about you, surely your first choice is to go to Google search and then find the first clue of what the company knows about us.Your Browsing History ?
From the Google History page, you can review any and all of the searches you’ve done, broken down by time and date, whether on the web, blogs, news, etc. This is part of making Google tracking everything you search, from any device on which you are registered with your Google account. The company says use it to show your preferences completely molded to search, but it also functions as a bubble in which Google gets you and not let you out of the user profile that you created the search engine. Whether you sign in with your Google account or not, thanks to the Google cookies of all manner tracks all the sites you visit, how often you do it, the time you spend on them, that you come by, and more. In addition, this information is more useful for advertisers who buy ad space on Google, and all the marketing in which the company engages. And of course, someone else that you can access this information represents a rather large privacy problem.Private Gmail ?
There is no such thing as a private e-mail when we talk about Google. If you come happily using Gmail for many years, like me, and like millions of users, you should know that Google has access to everything you write from your account. Even uses the contents of your private emails to show advertising. Use up what you write those emails you write, no matter who come from other mail service. Not surprisingly, Google knows your tastes as well, if even in your private conversations he gets.Your Documents And Servers ?
They may be your documents, but they are in the cloud of Google and of course, Google can read. All Google services share a terms of unified services, so if you Google the freedom to read your emails and get data from them for whatever they do with the information is taken, can you perhaps expect your documents Drive are not read ?YouTube Watch You ?
The most popular place in the world to see and share videos, also part of Google, and of course everything you do on YouTube, is stored. Google keeps track of all the videos that you see your subscriptions, you do searches, etc. From the Control Panel Google you can check all the information Google stores about you. It’s a pretty long list. There is virtually no hint of online activity that Google does not put your hands.Android Is Open,Like A Book ?
With Android, Google not only check your browsing history, the videos you watch, the searches that you do, and documents stored: also tracks all the sites that you go through the use of GPS is not great as Google Now you know where you are and where you ?, great and creepy. Android also stores device information, including passwords, WiFi networks, and data from third party applications. All this information is stored on backup servers Google. Until there is a history of audio! All this and I have not mentioned two huge things: the Google+ social network, or the Google Chrome browser. So to summarize: Google stores all data that passes by.Google Is Not A Machine Without Feelings Or A God In Heaven
We must be clear that this information is not going to a database as a book goes to an old library to house dust and cobwebs out. This information is used for commercial purposes, and even politicians. If anything on this planet more valuable than money, is information, and this is why Google is the richest company in the world. Google trades with the information obtained from users, and thanks to this coin that has amassed the fortune he has. It may sound like science fiction movie, but this company really wants to dominate the world, and somehow one another has already accomplished. Google is not only the business of the world’s largest advertising, you own the historical and personal files of half the world. If that’s not a reason to see them with something of fear, which can not be. Google not only gathers information, stores it for eternity (or until the zombie apocalypse). All that was, all that is, and all that will be, Google probably knows.I Hope This Article Helps You If You Getting Any Problem Related To This Article You Can Comment By Below Comment Box We Will Help You And If You Need Any Trick Or Software Or Hack You Can Mail Us We Will Try To Give That Article We Happy To Help You All Guys.Thank You Share And Subscribe Us. #Pankaj Patidar Rock
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Available link for download
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