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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

How can you find out how fast your RAM is in Linux?

There's a few different ways you could go about this. One way to go about this would be to run the command line utility dmidecode with root permissions. Near the bottom, it will list information about each RAM module, such as manufacturer information (in a hex code) as well as speed in megahertz. You may want to redirect its output to make it easier to read, such as by using dmidecode > dmidecode.txt

Another way would be to use Memtest86. This is not part of Linux itself, but is included with many Linux distributions such as Ubuntu. This will display RAM speed (in megahertz) as well as timings and latencies.

What is the default nice value for processes in Linux?

It's 0, but some of kernel processes run with nice from -2 to -4, sometimes even higher.

How do you release and renew your ip address in Linux computer?

Below are two different methods of how this can be done at the command line.
ifconfig eth0 down
Running the above command would take the eth0 interface (the first network card) down. Which is the same as releasing the IP address from that network card.
ifconfig eth0 up
After the interface is taken down, typing in the above command would bring that interface back up.


or
dhclient eth0
Renews the IP address assigned to it by DHCP.

Which command illustrates how to obtain helpful documentation for the ls command?

Use either the 'man' command or the 'info' command with ls to get more information on options and output.

What does the Linux Load Balancer do?

The Linux Load Balancer helps servers stay balanced when there is a lot of activity on the servers. The Linux Load Balancer is a brand that has a site where more information can be found.

How does one find more information about lenux?

Lenux has been seen as an alternative spelling of the popular unix set of operating systems known as linux. There are many different versions available and information about these so called "distributions" can be found on the creator's website. Try Ubuntu, a great one for beginners.

Why can't you install Windows after Linux?

You can. But the Windows installation does not put an entry into it's boot menu, so you have to manually copy a boot sector, and modify the boot menu so you can boot Linux. Linux distributions expect that you may want to dual-boot, so they detect Windows and set up an option for it automatically. For convenience's sake, it is far easier to install Windows first.

How do you get your airport card to work in Linux?

The Mac's AirPort card conforms to the standard IEEE 802.11 and should be recognised by a Linux installation. From personal experience it works fine with Ubuntu without any need for configuration.

What skills are necessary to make your own operating system based on Linux?

This depends on the feature set that you want your distribution to have. In general, you need to:

  • Know how to compile software, including the Linux kernel
  • Write basic shell scripts (the more featured the distro is the more complex the scripts)
  • Know how to configure a bootloader.
  • Set up a packaging system if you want users to be able to easily install additional software

Where can one find Linus dedicated server hosting?

There are several companies online that provide Linux dedicated web server hosting. Try these out, Hostgator, Constant, Inmotionhosting and Serverpronto.

How do you change boot label of Linux?

By "boot label", I presume you mean it's name as it appears in the boot menu. You can change this by editing the boot menu in question.

For GRUB:

The GRUB menu can be found in /boot/grub/menu.list

For LILO:

The LILO menu can be found in either /boot/lilo/lilo.conf or /etc/lilo.conf

For SYSLINUX:

The SYSLINUX menu can be found in either /boot/syslinux/syslinux.cfg /syslinux/syslinux.cfg /boot/syslinux.cfg or in the root directory.

For NTLDR (the Windows bootloader):

The NTLDR menu can be found in the boot.ini file of your C:\ drive

Can Cardinal Connecta modems be used with Linux?

All available information points to Cardinal Connecta modems being WinModems, not hardware modems. Assuming it was actually a hardware modem, it would work, since all hardware modems map to a COM port and need no special software or drivers to be operated.

Does IPv6 work on Linux?

Yes. The Linux kernel has supported the IPv6 protocol since 1996.

What is the name of GUI use by Linux?

Different Linux distributions can use different GUI's some will use Gnome or KDE. Most distributions will let you choose which you want. If you have an older machine you might want to use XFCE or LXDE window managers. If you are looking for a distribution you might want to try Linux Mint it uses all of these Window Managers.

Where do Linux live?

Linus Torvalds (Linux Creator) Lives in Portland, Oregon

Can each Linux user belong to only one group?

A Linux user can belong to multiple groups, and in most circumstances, it would be very difficult to utilize a Linux system without being so.

How do you use Kernel?

A "kernel" refers to an single, small unit--one of the many found on an ear of corn (usually yellow). To use kernel in a sentence--assuming you don't want to talk about corn: "His incomplete answer did not supply one kernal of new information about the subject." or, "Her outrageous, exaggerated account of the break-up did not have a kernal of truth in it. (Not one single little bit)

Where would one find instructions on how to run e2sck on Linux?

One can find instructions on how to run e2sck Linux by checking the Linux website directly. There are clear instructions on how to run all Linux programs.

How do you invoke a user program from the kernel?

The Linux kernel will automatically call "init." init will in turn launch any other processes. You can add a process in by creating a script for it in the appropriate run level.

What is the kickstart file used for in Linux?

It is a script that is parsed during a Linux install. It is usually specified when you boot into an install CD/DVD or whatever medium you are installing from, network, etc.

When you boot from an install media, you get that welcome screen, and instead of just hitting enter to start the process, you have options, e.g.

"linux ks=floppy" would be the way to use a kickstart file on a floppy.

You can create custom install CDs that have the kickstart file on them already, then

"linux ks=cdrom" would start you on your way.

The kickstart file has two main purposes:

1.) To create an unattended installation. You pop in the DVD, type as above, and go for coffee. When you return, system installed. No questions to answer.

2.) It allows you to create a template installation, so if you are installing to many machines, they will all have to same packages installed, same settings, etc.

Bonus.) Vendors may give you a kickstart file, to ensure that when you install Linux for their product, the right things are there, in the right way.

---That's about it.

What advantages are there to Linux email servers?

Linux servers can be converted to Windows fairly easily. They support a variety of sql databases. The cost is lower than for other operating systems.The Linux operating system is very stable.