In packet switching networks, routing is the process that directs or route the data packets depending on the destination address contained in each packet. During the process, router glance to a table (forwarding table) storing destination address of the incoming packet and takes out the information necessary to determine the path of the packets. The […]

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Hello All I don’t have much to tell. Want to find out who is operating a website? Look no further. Here is the link https://www.whois.com/whois/. Just fill in the domain name. You will get to know on whose name the website has been registered.  As simple as that! Direct link for some colleges (UPTU Govt. BTech Colleges […]

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Have you ever tried comparing your internet plan and time taken to download a file via internet? Let us say your internet plan is 2 MBps. Now, how much time it should take to download a 2MB file? If you guessed 2 seconds, you are wrong! Let us see what actually 2MB file and net speed […]

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Hello All, Has this ever happened to you? You want to know about a cool technology. But, there is no one to listen to you. You just now learned a new tool and wrote a blog too. But, it is of no use to readers as they don’t get their hands dirty with the code. […]

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WEP is an old encryption but it is still used in some networks. It uses algorithm called RC4 where each packet is encrypted at access point and is decrypted at client. Assuming wifi card to be in monitor mode. Checking available networks: >airodump-ng mon0 Launching airodump on target network >airodump-ng channel ch bssid write filename […]

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Threads often use the same memory space and data structures. This makes unsafe to allow simultaneous access to such resources or data without a protocol for safe access. MUTEX or Mutual Exclusion is the method  used to check this and give a serializing access to shared resources & data. It is like lock which can […]

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Threads are semi-processes or low weight processes that have its own stack, and executes given piece of code. Unlike processes, the memory is shared with other threads thus can share global variables, same heap memory, and same set of file descriptors. Threads execute in parallel assuming system has several processors. Advantages of threads over processes: […]

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