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Except package management and environments , I would like to know what's the main points between them .

which are providing best support to their builds ?

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closed as too broad by Braiam, chaskes, mikewhatever, guntbert, Avinash Raj Mar 28 at 16:17

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.

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I would agree with this answer here askubuntu.com/a/64655/63025 –  atenz Aug 7 '12 at 10:47
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i would like to clarify , are you asking about paid Red Hat Enterprise Linux Desktop and Ubuntu desktop or their server counterparts. Or about Fedora and Ubuntu in general. –  atenz Aug 7 '12 at 11:02
    
Redhat and Ubuntu i want to know . –  AgentCool Aug 7 '12 at 13:47
    
Editing the question after it got answered to ask for more information will make it go unnoticed. It's better to ask a new question as long as you can prove it won't be a duplicate of this one. But it would be even better (specially in this case) to start a bounty if you need require more information for your question. –  Dan Aug 15 '12 at 7:52

6 Answers 6

up vote 20 down vote accepted

There are a few different ways to interpret "Redhat" here:

  1. Red-hat Enterprise Linux - A specific, commercial distribution by Red Hat.

  2. Distributions which are based on or inherit from Red Hat, which would also include CentOS and Fedora, and their derivatives.

  3. RPM-based distributions in general - that is, distributions that use the Redhat Package Management system. This would expand your scope to include distributions like SUSE, Mandriva, PCLinuxOS, and their derivatives.

The answer may be different depending on which one you mean.

  1. If you are referring to Red Hat Enterprise Linux specifically, then by far the biggest difference is the license terms - Red Hat Enterprise Linux is commercial.

    You can, however, get the same distribution, but without the commercial contract, for free in the form of the CentOS distribution.

  2. If you are including also Fedora and CentOS, then it's actually very hard to compare all those as if they are one thing. They are all very different in themselves. The one thing they have in common, which sets them aside, is their package manager, which I talk about below.

  3. If you are referring to any RPM-based distribution, then the biggest difference would obviously be the package manager. Ubuntu is based on Debian's package manage based on APT and DPKG. Red Hat, CentOS and Fedora are based on the old Red Hat Linux package management system, RPM. Both package managers are now quite mature and have roughly equivalent features. You could debate invidual design decisions though but it's hard to say that one overall is better than the other.

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Main Difference is Ubuntu is based on Debian system. It uses .deb packages. While redhat uses it own package system .rpm (red hat package manager ).

Redhat is free but it is charged for support (updates), when Ubuntu is totally free with support for desktop users only professional support is chargeable.

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After many years using both, I can say that the real difference is H/W vendor support for various server hardware subsystems like:

  • latest FiberChannel drivers
  • iSCSI offloading support
  • 10Gbps Ethernet
  • online firmware (bios, NMI) updaters
  • SCSI storage accelerators
  • Software SCSI drivers (like for HP B Series)
  • BMC drivers/updaters
  • Live Controller/RAID configuration
  • Health monitoring
  • GUI server management/monitoring
  • etc

All of the above exist for RedHat (and in almost all cases can be installed in centos) but for the .deb based distributions you're usually out of luck or in rare cases you get something old that that will waste your time and will often break your system.

Another point is EPEL: I've found that the EPEL repo (RedHat & CentOS) is far more complete and updated than Ubuntu (official) repos, not so for desktop stuff but for server stuff. E.g. latest IPSEC packages, SaltStack, etc for which you would need to configure extra repos in ubuntu.

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There are several points between these two to differentiate them. In easy words differences are:

  1. Ubuntu Desktop enterprise edition (Business Desktop Remix) is free to use but RedHat is not.
  2. Ubuntu focuses on Desktop users, in other hand Redhat main focus is Server platform.
  3. Red Hat is made by Red Hat Inc. is founded by Young and Ewing while Ubuntu is headed by Shuttleworth, owner of Canonical Ltd.
  4. Ubuntu is based on Debian (a very famous and stable Linux OS), but RedHat has nothing like this.
  5. Ubuntu package manager file extension is .deb (which uses other Debian based OS i.e. Linux Mint), whether RedHat package manager file extension is .rpm (which means RedHat Package Manager).
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@Eliah Kagan Actually that will be Ubuntu Desktop enterprise edition. Please check the details here ubuntu.com/content/ubuntu-desktop-enterprise –  tuxtu Aug 7 '12 at 10:47
    
I would bet that for Business Desktop Remix :) –  atenz Aug 7 '12 at 10:59
    
@EliahKagan I have used Ubuntu Desktop enterprise edition not to create any confusion. Ubuntu has a special desktop edition for enterprise use. They named that edition as Business Desktop Remix. This edition is different from general Ubuntu edition. Please check out this ubuntu.com/business/desktop/remix. –  tuxtu Aug 8 '12 at 3:49
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"Ubuntu is based on Debian (a very famous and stable Linux OS), but Redhat has nothing like this." - couldn't be more wrong. RHEL/CentOS are based on Red Hat Linux, a very famous and stable Linux OS. –  neon_overload Aug 27 '12 at 1:43
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Also some confusion between executable files and package files - .deb and .rpm are packages. –  neon_overload Aug 27 '12 at 1:44

Red Hat Enterprise Linux is not free, and its also used for business.Red Hat Linux, assembled by the company Red Hat, was a popular Linux based operating system. Red Hat Linux 1.0 was released on November 3, 1994. It was originally called “Red Hat Commercial Linux” It is the first Linux distribution to use the packaging system, the RPM Package Manager as its packaging format, and over time has served as the starting point for several other distributions, such as Mandriva Linux and Yellow Dog Linux.

Red Hat’s Features:

  • Red Hat Linux introduced a graphical installer called Anaconda, intended to be easy to use for novices, and which has since been
    adopted by some other Linux distributions.
  • It also introduced a built-in tool called Lokkit for configuring the firewall capabilities.
  • It uses .rpm package called Red Hat Package Manager.

RPM Package Manager (RPM) is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages.

Each software package consists of an archive of files along with information about the package like its version, a description, etc.

Ubuntu Ubuntu is an operating system, like windows. Ubuntu is a Linux distribution that starts with the breadth of Debian and adds regular releases (every six months), a clear focus on the user and usability (it should “Just Work”, TM) and a commitment to security updates with 18 months of support for every release. Ubuntu ships with the latest Gnome release as well as a selection of server and desktop software that makes for a comfortable desktop experience off a single installation CD.

  • Ubuntu uses the.deb apt package:- Ubuntu uses .deb package for package installation as like .rpm of Red Hat.
  • Ubuntu also uses apt-get package installer to install packages by using command mode. To install package Graphically, synaptic package
    manager.
  • Ubuntu is Debian based.1

1Source:The Magnet Blog

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In Redhat linux the root password is specified at installation time. In ububtu linux no root password is asked before installation.

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In ubuntu, root account is disabled by default, Normal user don't have root privilages –  Tachyons Jan 25 '13 at 11:01
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This is a very small item from a much longer list of differences. So, I don't think this answers the question. –  gertvdijk Jan 25 '13 at 13:50

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