Common Linux systems include Ubuntu, Fedora, Debian, Redhat EnterpriseLinux

SUSE OpenSUSE, Mindriva, Gentoo, Arch, Slackware, etc. These mainstream distributions almost account for the majority of the share, and basically all of them are free to use and install. Except for a few paid versions such as linspire, almost all distributions, including RHEL, can obtain the installation CD image for free on the official website. .

Debian is generally used by civilian servers in non-commercial and non-governmental sectors. Outside companies generally use redhat enterprise version, namely RHEL (Redhat Enterprise Linux) and CentOS.

CentOS comes from Red Hat Enterprise

Linux is compiled from source code released in accordance with open source regulations. Because it comes from the same source code, some servers that require high stability use CentOS instead of the commercial version of Red

Hat Enterprise

Linux. The difference between the two is that CentOS does not contain closed source software.

1. Redhat

After all, it is a mainstream server-level Linux version. The most important thing is to provide various professional technical support and provide large technical and product solutions. It has the only global Linux professional and technical certification body. Red Hat is the first choice for large servers in many state-owned enterprises and large and medium-sized enterprises.

2. Centos

In fact, redhat just changed its trademark. There is basically no difference compared to redhat. The advantage is that it is completely free, and the disadvantage is that it does not provide any technical support. Some standard server systems are often used by small and medium-sized enterprises.

3. Ubuntu

The personal system is quite excellent, especially the rich resource library and the design of the leading graphical interface. However, it is still not used too much as a server.

Centos, fedora, and redhat are mostly used by major Internet companies. If large enterprises use them as data centers, it is estimated that ubuntuserver’s share is not yet available. Ubuntu server needs to prove itself to these enterprises and wait for these enterprises. assessment. Currently, redhat and suse account for 90% of enterprise data center servers. Suse has been declining, and redhat is the leader.

centOS does not have the unique advantages of redhat, and even its latecomer potential is not as good as SL. Redhat's services are relatively good, its products are relatively stable, and those big companies are willing to spend money to get services. Radhat basically takes most of the money earned by servers under Linux.

Ubuntu server is on the rise, and I hope to take 12.04lts as an opportunity to achieve great development. Think about Windows

server. The system itself is not as stable and reliable as Linux, but why it occupies the majority of the PC server market is that the related one-stop services and related supporting software are well done. , after all, many people, including companies, are afraid of trouble and are willing to pay to enjoy these conveniences.

So it is only natural that redhat can stand out. Ubuntu

server is very hopeful to become the second redhat.