When trying to understand your network, you must understand how IP addresses are assigned to devices. This is the key to mapping the devices on your network. If you are not familiar with the command-line interface, here are some tips to help you find devices on your network. A good example is the Nmap program. …
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You’ve probably wondered, “How to reduce the size of a PDF file in Linux?” Scanned documents often exceed the limit for email attachments. But fear not: Linux users can easily compress PDF files on the command line. All it takes is the ps2pdf tool from the ghostscript suite. Now, you can send your PDF files …
A process can become orphaned unintentionally, such as when a parent process terminates. In order to prevent orphaning from occurring accidentally, the system has a mechanism known as process grouping. This mechanism coordinates with the user’s shell to terminate child processes with the SIGHUP signal. This mechanism is often used to prevent unintentional orphaning and …
How to make an offline repository in Ubuntu is a helpful feature for those who need to install software and security updates often. Using a local repository will save you time and internet bandwidth when installing and distributing applications. By downloading these files via a fast LAN connection, you can keep your computer up to …
You may wonder how to change the timezone in Ubuntu. It’s a simple process that only requires a few commands. You can change your time zone through the user interface, or you can do it from the command line. Here are some instructions. First, make sure that you have administrative privileges on your system. Then, …
If you’ve used the Linux command line utility Terminal, you’ve probably seen a file called /.bashrc. This file determines how interactive shells behave. If it is empty, bash won’t know where to look. But if it has the proper file name, bash will read it and behave accordingly. Here’s how to find the file name: …
If you’re wondering what is Mac OS X 10.7.5, you’re not alone. Mac users have been asking this question for years, but only recently have they decided to upgrade their operating system. This latest version of macOS was released on September 19, 2012 for the iMac and MacBook Pro. If you’re still unsure, read on …
If you’re wondering, what is the operating system (OS)? It’s a collection of software programs that manage hardware and provide interaction between users and the hardware. The operating system is a central part of your computer that handles file management, memory management, and other basic tasks. Operating systems have two basic goals, and each type …
To change the administrator account on your Lenovo laptop, you must first make sure that you own the computer. You will need to know the password of the account that you wish to change. If you do not have an administrator account, you must first set up a password for that account. You can also …
If you have forgotten your Kali Linux password, you have a few options. The first option is to boot into the GRUB boot menu. Once there, type kali into the command prompt and press Enter. You will now see a screen where you must enter a new password. Repeat these steps for each password. Once …