How to choose the server system

Windows piece

Alibaba cloud provides 6 Kind of window System , covers Server 2003 sp2 as well as Server 2008 R2 These two types of operating systems . It is divided into 32 Bit and 64 position

（1） How to choose 32 A still 64 position

32 Bit system 64 Bit system , The main limitation is the size of memory . because 32 The limitation of bit itself , It can only support up to 4GB Memory , If your website wants to use more than 4GB Memory or expanded memory in the future 4GB The above plan , Please use 64 Bit operating system .

（2） choice 2003 Or choose 2008

about windows Come on , My personal suggestion is to choose the higher version, the better . Relatively speaking, the new version has fewer vulnerabilities , and IIS 7.5 be relative to IIS6 Provides more functions and more convenient console . But considering the different machine configurations , Here are some options ：

The configuration is lower than dual core 2GB Memory ： choice server2003 No database

Configure dual core 4GB： server 2003  mssql perhaps server 2008 R2 Without database

The dual core configuration is higher than the dual core configuration 8GB：serever 2008 R2  mssql

It is suggested that if you want to run the database on the ECS , Try to choose a large memory configuration , Or reduce the configuration to choose RDS

（3） Chinese and English 、 How to choose the security enhanced version

This is based on everyone's preferences , I won't say much here

as for Windows Server configuration tutorial , Because there are many online tutorials, and compared with Linux Come on Windows Less difficult to configure , therefore Windows The configuration tutorial will be released later .

Linux piece

This is the focus of this tutorial , Tell everyone how to choose Linux The server .

Linux Alibaba cloud provides two categories in total 11 Kind of , Now let's introduce the specific differences .

（1） these Linux What's the difference between versions ？

Linux Divide into categories , Alibaba cloud provides a platform based on Debian Follow Red Hat Two types of operating systems , The specific classification is as follows ：

Debian：Ubuntu Debian

Red hat：Red Hat Centos

（2） What is the difference between these two categories

Debian： With deb package , Use APT Package management system . meanwhile Debian More recent versions of most software are available , And more packages are available （ Compared to the original Red Hat）.Debian Its advantage is that it is updated quickly , Software package improvement （Ubuntu especially ）, Convenient operation . The disadvantage is that sometimes the stability is not good , Follow up on the latest software may exist Bug.

Red Hat： use rpm package , Use yum Package management system . be relative to Debian Come on ,Red Hat One of the main characteristics of is slow . Most software stays in a stable version , And it's far from the latest version . In addition, some new features of some new versions of software are also slow to support , such as php-fpm. because Red Hat It's an operating system for enterprise users , So it's very prominent in terms of stability , Generally, the latter is preferred in the choice of new function or stability . Only when a function is completely certain and stable , Will be added to the system . The advantage is that the system is stable , The technical documents are perfect , If you pay for it, you can get enterprise level technical support . The disadvantage is that the software package is old , And some of the newer features are missing .

To sum up ：

If you like it , Like to use the latest features or toss system , that Debian It's a better choice . be relative to Red Hat The kernel of is still in 2.6,Debian Have already entered 3.0 The door .

If you pursue stability , Don't want to upgrade system software often, don't like to toss and turn , that Red Hat It's your better choice , Excellent stability and rich documentation support will definitely meet your needs , Of course, don't have illusions about too new functions . and Red Hat Perfect documentation can save you from looking for tutorials everywhere 、 The pain of the Forum

It's hard to get started Ubunt<Debian<Redhat=Centos

Linux Relevant tutorials will be released in the future Coming soon

（3）Debian And Ubuntu The choice of

Ubuntu Is based on Debian The development of , You can simply think of Ubuntu yes Debian Enhanced version of . And Debian comparison ,Ubuntu Provides a more user-friendly system configuration , More powerful system operation and more than Debian More radical software updates .Ubuntu And Debian Compare , It can be said that Debian More conservative ,Ubuntu More friendly to novices , It's easier to get started . Used to Ubuntu Everyone will realize its ease of use , On the contrary, if you have used Ubuntu Then switch to another system , Will feel uncomfortable ,Ubuntu It's really convenient .

Personal advice , If you're going to choose Debian Class , Suggested choice Ubuntu.Ubuntu Provides better operation , More radical software updates , More convenient management software and similar stability . If you want to use Debian class , Don't want to give up stability , So please select Debian. And Ubuntu comparison Debian Better stability , But it also exists Red Hat And Debian Compared with similar problems .

About Ubuntu Version selection ：

Debian Just give a version , Don't say anything , The point is Ubuntu.

I don't know how Alibaba cloud engineers thought of it at the beginning, but it was used when they made their own images 10.10, Unexpectedly 10.10？

In this explanation Ubuntu Version support time .Ubuntu The normal version only provides 18 Months of technical support , When it expires, it doesn't matter .LTS The server version provides up to five years of technical support .Ubuntu 10.10 It's a regular version , Now the support cycle has passed . If you use , very good , You will find that you can't install any software ,10.10 Our software has gone from Ubuntu Removed from the software source . So I suggest you choose 12.04 LTS edition , Provide up to 5 Years of technical support , It can ensure that your server can continue to receive system upgrade patches and available software sources for a long time . By the way, roast again to make this ISO Of , Can you be a little professional ！ Give it to someone who doesn't have a software source. Let's put it there after installation ？

(4) Red Hat and Centos choice

Red Hat Follow Centos There is not so much difference .

Red Hat It's a paid operating system , You can use it for free , But if you want to use Red Hat If you want to get technical support , It's like Windows Paying like that , So you can understand it as Linux Medium Windows. This is in line with the spirit of open source , Free use , service charge .

Centos yes Red Hat Open source version of . Generally in Red Hat After the update ,Centos The code will contain Red Hat Part of the patent was removed , meanwhile Red Hat All kinds of server setting tools included in the are also killed , And then recompile it to Centos.

In a sense ,Centos It can be almost completely regarded as Red Hat, These two versions of rpm All packages are universal .

Then the problem is simple

If you are willing to spend money on technical support , And want to get perfect technical services , Please buy it Red Hat Authorization of , You will get as Windows Generally strong technical support .

If you just want to use , What paid technology supports and what proprietary software are floating clouds , Then use Centos Well .