Asymmetric Encryption of data requires transfer of cryptographic private key. The most challenging part in this type of encryption is the transfer of the encryption key from sender to receiver without anyone intercepting this key in between. This transfer or rather generation on same cryptographic keys at both sides secretively was made possible by the Diffie-Hellman algorithm.
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Whenever you execute a program on a terminal, you can pass some arguments that are expected by the program, which can be used during the execution of the program. Here, system provides internal facility to maintain all arguments passed from user while executing program. These arguments are known as “Command line arguments”.
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Once you insert new hard disks into your system, you’ll typically use utilities like fdisk or parted to create partitions. Once you create a partition, you’ll use mkfs command to create ext2, ext3, or ext4 partition.
Once you create a partition, you should use mount command to mount the partition into a mount point (a directory), to start using the filesystem.
This tutorial explains everything you need to know about both mount and umount command with 15 practical examples.
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There are times when you need to port an object file available for one kind of platform (like ARM or x86) to another kind of platform. Things are relatively easy if the source code is available as it can be re-compiled on the target platform. But, what if the source code is not available and you still need to port an object file from type of platform to other? Well, if you are using Linux then the command objcopy does exactly the required. In this article, we will learn the basic usage of this command through some examples.
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Control conditions are the basic building blocks of C programming language. In this tutorial, we will cover the control conditions through some easy to understand examples.
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The name MongoDB was derived from Humongous DB.
It is an open source NoSQL database. MongoDB is developed and commercially supported by the company 10gen.
The focus of the MongoDB is on scalability and performance. MongoDB is a schema-free document-oriented database. This stores data as JSON objects. Unlike traditional SQL database, you don’t need to define a schema. The schema is embedded in the data document itself, making it easy for you to change the schema at anytime without worrying about changing any of the previous documents that are loaded. High performance and scalability are possible because there are no joins, and no multi-document transactions performed on MongoDB. This also provides replication across servers with the ability to fail-over automatically. You can also scale across servers for high availability.
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There are times when it is required to mix the C and C++ code together. For example, while using a legacy C code or while using a specific C library the provides your C++ code with some specific functionality. So, some special steps are to be taken care of when using C code in C++ file or vice versa.
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mkfs utility is used to create filesystem (ext2, ext3, ext4, etc) on your Linux system. You should specify the device name to mkfs on which the filesystem to be created.
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My name is Ramesh Natarajan. I will be posting instruction guides, how-to, troubleshooting tips and tricks on Linux, database, hardware, security and web. My focus is to write articles that will either teach you or help you resolve a problem. Read more about