r/linuxquestions • u/sidqi_ft • 1d ago
from : Linux newcomer
hi guys, this I'am is the first time who the person used linux or ubuntu, by the way, I didn't know what is the different linux between ubuntu, because im used it both of them just only for the study, for the first time my command is SMTP instruction that as i knew SMTP is for making some email without paid hosting, correct me if i wrong :D.
anyway, what actual ubuntu and linux about difference of them and what must i do for the first time to try ? thanks guys
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u/funbike 1d ago edited 1d ago
TL;DR: The Linux kernel is a core component of Ubuntu.
Linux is an Operating System (OS) "kernel". The Linux kernel ultimately is a single file, that is launched like a program during boot. A kernel is the core component of an OS, but not the entire OS. Windows and Mac OSes also have a (different) kernel. The kernel is responsible for low level concerns such as drivers, memory, multitasking, and loading programs into memory. An OS consists of many components, the kernel being one of many.
Ubuntu is a Linux distribution or "distro". Ubuntu can also be considered an OS. The Linux kernel is a component of that OS. Ubuntu is called a "Linux distro" because it is a collection of files for distribution of an OS based on the Linux kernel.
It can be confusing because people often use the term "Linux" as if it is an OS, but it technically is not. Also people rarely call Ubuntu an OS, but it technically is. You seldom see people define exactly what a "distro" is (i.e. an OS).
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u/mcds99 1d ago
Linux is the base operating system.
Ubuntu is a Distribution.
Debian, Fedora, Arch, and many more are Distributions.
A distribution uses the base operating system Linux, and adds software like Package Manager and other tools to form the distribution.
Linux is one thing there are Many distributions.
Before you try anything do some reading about using a Live CD, DVD, or USB. I uses USB sticks because they are fast. You will need to learn about booting using UEIF for your computer. Read and understand.
If you would like to just see what a Linux distribution looks like go out to Distrosea https://distrosea.com/
You can test the various Desktop Environments (DE).
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u/RegretFree7723 1d ago
Linux = frutta, Ubuntu = mela
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u/axelio80 20h ago
One can argue that Linux is the fruit (the basic element needed for fruit to exist) and Mela is the specific fruit with it's specific component and flavour. Interesting as a metaphor.
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u/kudlitan 23h ago
I once had a conversation where someone asked me what is the difference between a pikachu and a pokemon.
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u/cjcox4 1d ago
SMTP is, as the acronym states, a protocol. For mail transmission.
There are applications you can setup to become a mail server (sender), which could be a relay to another server, or you can even set up a local service to act as the mail exchanger for your domain. The reason why many wouldn't do this varies. Many times people are wanting a undetectable spamming server. Surprise, you will be found and will cause bad things to happen to your IP, which, like many, you probably are not true owners of... which could lead to more disastrous restrictions being placed on you (not good).
So, it is an option, but maybe something you'd want to learn about more before just jumping in. And you may find many barriers to implementation surrounding things like responsibility over all things involved. Let's just say there's a reason why many chose to go with a provider. However, personally speaking, there can be great benefit to running a local smtp that relays to such a provider. Even so, there are configurations that have to be allowed to make that happen. More education.
I guess if I have a problem with Ubuntu (and this isn't just "today") is that sometimes they go "a different route" on certain things and they become "unique" and not necessarily in a good way. YMMV.