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    • What is Tar?

      What is Tar?

      Tar refers to a tape archiving file format and the program that creates them. Tar stands for tape archive. It combines multiple files together so that they can be used for programs, applications, and critical system files. While Tar does not directly install files to a user’s hard drive, it is responsible for compiling the

    • How to Copy UNIX Files to Windows

      How to Copy UNIX Files to Windows

      For those computer users that have both Unix and Window’s operating systems, you should know that you can easily copy your Unix files from a Unix computer and transfer them to a Windows computer. Using Client for NFS, you can transfer any existing Unix files from your Unix server to a Windows based server. It

    • Bootable Linux Distributions

      Bootable Linux Distributions

      Bootable distributions of the Linux operating system are becoming very popular for use in securing networks, testing network security, and conducting forensics after suspected intrusions. Local Area Security Linux Local Area Security Linux is a ‘Live CD’ distribution with a small footprint. Containing over 200 information security and administration related tools, as well as a

    • How to Install Linux on an Xbox

      How to Install Linux on an Xbox

      For hardcore gamers, the Microsoft Xbox is one of the top consoles ever created. The hardware itself is on par with many desktop computers of just a few years ago, which gave many hackers the great idea of actually making their Xbox into a computer fully equipped with a DVD ROM drive, keyboard, mouse, and

    • How to Change a Unix Password

      How to Change a Unix Password

      To change your Unix password, use the `passwd` command. ¬†Unless you are the “root” user, you will need to know your current password to set a new one. ¬†If you have forgotten your current password, you will need to contact the “root” user to have your password reset. Here is an example of the user

    • The History of UNIX

      The History of UNIX

      UNIX is one of the most important operating systems ever developed. What made Unix stand out in the crowd of countless other operating systems is that it was a competent operating system that was extremely affordable and worked on low cost hardware. Economics definitely played a large part in UNIX’s popularity and today it is

    • How to Create a Cron Job

      How to Create a Cron Job

      Unix users write, edit, list, and remove cron jobs using the `crontab` command. `crontab -e` takes users into their default editor to edit their crontab entries. `crontab -l` lists their crontab. `crontab -r` removes their crontab. crontab Security If the cron.allow file exists, then the user must be listed in that file in order to

    • How to Use the Unix Find Command

      How to Use the Unix Find Command

      The Unix find command, as the name implies, is a command that you can enter into the command line, or terminal, of a Unix operating system, allowing you to process any given set of files or directories. It is a highly useful command that you can take advantage of on Unix based operating system, making

    • How to Setup a Linux File Server

      How to Setup a Linux File Server

      One way that a small business that requires a file server can save thousands of dollars per year is to set up a Linux file server. Linux is an open source software platform that, in many ways, is just as good as or better than other types of platforms including Microsoft and Sun. Small businesses

    • UMASK


      umask is a Unix shell built-in command that automatically sets file permissions on newly created files. The umask command can be confusing to use because it does work as a mask. In other words, the user sets the permissions that he/she does not want in the umask. To calculate permissions that will result from specific

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