Before you can boot to Bios in Ubuntu, you should set the BIOS to boot from the CD. If you haven’t already done so, you should press F2 or F12 on your keyboard before the Ubuntu logo appears on the screen. Pressing F1 during the boot process will also allow you to access advanced options …
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If you’re wondering why Canonical dropped Unity, you’re not alone. Many people have criticized the company for reinventing the wheel. In order to compete with the likes of Windows, Android, and iOS, Canonical needed to create a system that was more appealing to both users and developers. Its failure to achieve that goal led to …
Random system crashes can be caused by various hardware and software issues. RAM stores may be corrupted or bad sectors in hard drives may cause random system crashes. Generally, reinstalling common systems drivers can fix the crash issue. Occasionally, your operating system may also freeze up because of a virus or other malware. To solve …
Many programs written for Linux or Unix systems require the ability to change the time zone and display epoch time. POSIX time is a standard for describing points in time on Linux systems, and it is used by Unix-based systems. Unix time is measured in seconds since January 1, 1970, minus leap seconds. To change …
If you want to make your system more secure, you can change the FTP port to another one. FTP usually uses port 21 by default, but you can change it to something else. For example, you can change it to 210 if you are running more than one server. You can change this setting in …
Counting files on a computer is a necessary task for system administrators. The Linux find command is the easiest way to count the number of files in a directory. In addition to displaying the total number of files in a directory, the find command also shows the number of files in subdirectories. Several utilities exist …
If you’ve ever wondered how to create a folder within a directory, Linux has the answer. Linux offers more flexibility than Windows and allows you to create multiple folders in a single directory. To create multiple subfolders, you use the mkdir command. Separate the name of the folders using commas, and “/” indicates a subfolder. …
You’ve heard of sendmail. But do you know how to configure it? There are several configuration files to set up sendmail. Read the Stackoverflow guide and learn how to configure Sendmail for Linux. You’ll find hundreds of configuration options and rule sets for sendmail. This guide will help you configure sendmail to block unwanted email …
In Linux, you can use the stopped job feature to place a job in the background and then recall it at a later time. When you stop a stopped job, you must make sure that you do not close the terminal. Otherwise, the job will be stopped. This is why it is recommended to always …
To remove write permissions on files on a Linux computer, you must use the chmod command. This command uses the lowercase letter “l” and the hyphen “-l” to show the file permissions. There are three different types of permissions on a file: read, write, and execute. Read permission means that the file is readable. Write …