Being able to change your IP address and other network information is a useful skill because it will help you access other networks while appearing as a trusted device on those networks. For example, in a denial-of-service (DoS) attack, you can spoof your IP so that that the attack appears to come from another source, […]
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Introduction In this article we will demonstrate a quick and easy method to use your local system as a basic File Server using simpleHTTPserver. The SimpleHTTPServer is a built in module that comes available with the default Python installation on a YUM based system. It is a simple HTTP server that provides standard GET and […]
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Introduction Commands like sed and awk allow us to harness the power of regular expressions to search for text-based patterns in files and manipulate the matched text as per our requirement. The thing about regular expressions is that they are confusing. To the new Linux user, regular expressions may as well be another language. Although […]
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Introduction Having the ability to display your terminal output to a web browser would be a neat feature to have. In this article, we will be discussing a tool named Seashells that does exactly that. Seashells lets you pipe output from command-line programs to the web in real-time, even without installing any new software on […]
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In our previous article, we have discussed about how to download the kali linux image file and how to install virtualbox. Now let’s get you started with the virtual machine. Step 01 : Open Virtualbox VirtualBox should open once it has installed. Now you should be greeted by the VirtualBox Manager Step 02 : Create […]
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If you are familiar with cyber security stuff, you must have heard about kali linux. Kali linux is a operating system developed by offensive security and it was specifically targeted for penetration testers. This linux distribution is built on Debian and it comes pre installed with many more security tools. In this guide, we will […]
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Acct is an open source application that we can use to monitor user activity in Linux. This tool comes with the functionality of running in the background and tracking user activity. It also reports what are the system resources are being consumed by the users. In this guide, we will see how to install and […]
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Introduction Python is one of the most popular scripting languages in use today and due to its wide user base and community support, it has thousands to of modules available which help to add to its existing functionality. The version of python that comes pre-installed with Linux distributions has some modules already available. Modules for […]
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Secure Shell (SSH) is a network protocol that is used to create a secure encrypted connection between 2 computer systems. Once the connection has been established, the user can do the following tasks on the remote system Execute commands on the server X11 tunneling Port forwarding, and more There are mainly 2 parties involved when […]
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Netstat is a command line utility that can be used to list out all the network connections on a system. It lists out all the tcp, udp socket connections and the unix socket connections. Netstat also displays various network related information such as network connections, routing tables, interface statistics, masquerade connections, multicast memberships etc. In this […]
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Introduction Node.js is a Javascript platform for server-side programming that allows users to build network applications quickly. JavaScript is a client-side programming language, which means it’s processed within the user’s browser. With the advent of Node.js, JavaScript can also be used as a server-side language. By leveraging Javascript on both the front-end and the back-end, […]
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Introduction Namespaces and cgroups are the building blocks on which the foundation of containers has been laid. In this post, we will explore what are namespaces and cgroups along with brief descriptions of their various types. What is a namespace? You may consider a namespace as a global system wrapper. It means it takes […]
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Netcat (also known as ‘nc’) is a networking tool used for reading or writing from TCP and UDP sockets using an easy interface. It is designed as a dependable ‘back-end’ device that can be used directly or easily driven by other programs and scripts. Therefore, this tool is a treat to network administrators, programmers, and […]
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In today’s guide, we are going to look at the mtr command and see what it can tells us about network connections. Mtr is a simple linux command line tool that you can use for network diagnostic and troubleshooting in linux. It comes with the options of both ping and traceroute commands. Just like a […]
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In a GUI, checking the state of a network interface card is pretty easy. That is to say, you just have to click on the network information icon to see all the details. On the other hand, do you ever wonder how to check it in Linux command line? It is really simple task if you […]
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If I ask you how to send an email, what would you say? You will say go to gmail or yahoo mail and send the email. But, do you know that you can send emails using your Linux command line? Yes! you heard me right. We can do this by using the mail command. In […]
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Introduction DNS (Domain Name Server) is considered a critical component of any enterprise IT infrastructure. DNS runs as a service on a system and a DNS server can have different roles or we could say that DNS servers can be classified into multiple categories. In this quick article we will explain how to setup a […]
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In our previous article on the Linux yum command, we covered how we could use the yum package manager to search for packages, install them, query information about packages, check for security updates and update the system to have the latest versions of packages installed. In this article, we’ll show how to use yum to […]
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Introduction For managing software via the command line on our Redhat and Centos systems, we could use rpm directly or use yum which is somewhat of a feature rich front end for rpm. We covered the Linux rpm command and it’s features extensively in an earlier article. Yum is an acronym for yollowdog updater modified. […]
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The main use of nslookup is to help with any DNS issues you may have. You can use it to find the IP address of a host, find the domain name of an IP address, or find mail servers on a domain. This tool can be used in an interactive and a noninteractive mode. The Interactive mode […]
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