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Linux

A free and open-source family of operating systems first started in 1991 and named after its creator, Linus Torvalds.

2,239 Questions

What is an FTP server used for?

It is file transfer protocol, As a send the file inside the network, One of the oldest of the interner services, file transfer protocol makes it possible to move one or more files securely between computers while providing file security ans organization as well as transfer control.

What is XDR?

XDR DRAM or extreme data ratedynamic random access memory is a high-performance RAM interface and successor to the Rambus RDRAM it is based on.

What is the function of a Linux VPS server?

A VPS server can be used to run many applications and game servers as well as host many websites. A Linux VPS server is said to give higher performance, more security and reliability at a reasonable price compared with other VPS running on other interfaces.

What is the difference between Linux and ccna?

Just like Windows or Apple's mac OS, Linux is an operating system. An operating system is the collection of software that manages the different devices and applications in a computer. For example, some of the software is responsible for shutting down and starting the computer, and some software provides functions such as interacting with devices such as keyboards and mice. Learning to use a Linux system is an excellent opportunity to become familiar with the command line, the most definitive way to communicate with your computer. Plus, as you experiment with different projects, you'll learn about repositories, package management, file permissions, user management, and more.

The full name of CCNA is Cisco Certified Network Associate, and Cisco (Cisco) is the world's largest network equipment company. According to the IT certification examination resource network, CCNA is the primary technical certificate in the Cisco certification system.

First of all, CCNA is a manufacturer's certification, which is internationally accepted. It is an English-only exam that requires a high school English foundation.

Write a shell script to check if you are root or not?

[ $UID -ne 0] # Checks if the user ID is not 0 (root UID)

Why you dont use a microkernel in Linux?

Because the communication between different parts of the system is more complex in a microkernel.

What is Linux make install?

The 'make install' command is very common in software installations of Unix and Linux. It is usually the last part of a software creation that will take the newly compiled and linked modules and install them in production directories on the system.

This includes installing 'man' pages and other support materials as well as the shared libraries, configuration files, and executables required to execute the package.

Without the 'make install' the product may be available for testing after a successful compile and link, but will generally not be available to the rest of the users until this command is executed.

How to modify the GRUB Configuration so that the default timeout value is set to 30 seconds and the title is set to Linux?

Edit the /boot/grub/menu.lst file and change the timeout value to 30:

# general configuration:

timeout 30

default 0

And to change the title you change what looks like this:

# (0) Arch Linux

title "insert title here, without quotes"

root (hd0,0)

kernel /vmlinuz26 root=/dev/disk/by-uuid/epl509af-b8f0-4453-2678-2cb61f54c848 ro

initrd /kernel26.img

What is Linux virtual kernel for?

The virtual kernel is a kernel that can be used in unbuntu guest. It is a very lean kernel, this helps in reducing overhead.

It installs the server kernel via a new name.

What is chkconfig?

Chkconfig is a utility tool that is used in Linux operating systems to start or stop a program from automatically running when the system starts. You can also use the command to view or set up new services on your operating system.

What do you use the CHGRP command for?

The CHGRP command is used to change the ownership of a specific file or directory. More information about this command can be found on the IBM Help Index website.

What is stack segment?

I will start with a small explanation. An object code genearated by a compiler or assembler by processing a source code file, is structured as blocks of data called segments, each contain a certain type of data. The types supported are the following. BSS or Block started by symbol, Text/code , data, heap and stack.

Data Segment - global and static data which are initialized to non-zero

BSS - global and static data which are initialized to zero

Heap - dynamically allocated variables

The above three are often referred together as data-segment

Text/Code - contains machine instructions / executable computer instructions

Stack - contains local/auto variables,which will be pushed in and popped out during the call to the function.

ang tinda ni cha bating na okuy ay masiramon..bakal na kamo!! tapos si chu ruben ay pasmado na kakakayo...nag niriwang na! tenk you..eyo man lang tabi.

What are the applications of shadow alarm?

they can be used in houses,lockers,banks,museum,jewellary shops. if anyone tries for theft a loud alarm will begin that will prevent theft.

Which of the following can be used to change a user's home directory?

use the 'usermod' command, which exists on all unixes:

usermod -d /path/to/new/homedir/ username

What is Uptime?

Uptime is the length of time a system has been running continuously. If your server has not been rebooted in a month, you would have an uptime of about 30 days.

What command could you use to change the owner to bob and the group owner to acctg for the file etc yearend?

This is accomplished via two different commands; the sequence would be:

chown bob /etc/yearend

chgrp acctg /etc/yearend

What utility is used to create and edited XF86Config file?

Any text editor can be used to edit the configuration file.

What is the best Linux distro for wireless?

SUSE and Red Hat are the two most common. I just loaded SUSE 9.3 on my wireless laptop and it's solid. I'm not too fond of getting "the latest and greatest" since there are often problems associated. I had tried SUSE 10.3 and had a lot of problems so I found an older version. It worked great.

I don't know much about Red Hat except that it's also very popular so it must have something going for it.

What is the use of fg command?

Hmm... "fg" is a bash shell built-in command so I'm assuming you are referring to it. All it does is "resume" the referenced job (or task if you prefer) in the foreground of the shell thus making it the current job (or task). Of course, "fg" is only applicable to a job started with job control enabled.

In Unix and Linux shells that support job control, jobs may be suspended, moved to the background, moved to the foreground and suspended or paused jobs may be resumed. You could, I suppose, compare it to using a mouse to bring jobs into and out of focus on a GUI. I don't use GUIs a lot so I'm not sure how simple it is to suspend a job or task on a Windows system thus causing the task to cease being processed until it is resumed. It is trivial to do from within a bash shell however.

Also, job control in Unix/Linux shells is not restricted to bash, sh, ksh, csh and many if not most other shells support job control. [JMH]