The difference and installation of LAMP, LNMP and LNAMP

This article mainly introduces the differences and installation of LAMP, LNMP and LNAMP. It has a certain reference value. Now I share it with you. Friends in need can refer to it

LAMP=Linux Apache MySQL PHP

LNMP=Linux Nginx MySQL PHP

LNAMP=Linux Nginx Apache MySQL PHP

The main difference between the three is whether to use Apache, Nginx or both, a brief introduction Let’s take a look at the advantages of nginx and apache

The advantages of nginx compared to apache:

It is lightweight and takes up less memory and resources than apache. It is anti-concurrency. One nginx supports up to 50,000 concurrent connections. nginx processes requests asynchronously and non-blockingly, while apache processes requests in a blocking manner.

Under high concurrency, nginx can maintain low resources, low consumption and high performance. It has a highly modular design and writing modules is relatively simple. nginx Better than apache in processing static pages

Advantages of apache compared to nginx:

Apache’s support for PHP is relatively simple, rewrite is more powerful than nginx’s rewrite, and there are so many modules that you can basically think of it Found, less bugs and super stable, nginx has relatively many bugs, Apache is better than nginx in processing dynamic pages

From the above point of view, if your server has less memory, you can give priority to the lNMP environment, but Correspondingly, stability will be sacrificed. If you pay more attention to stability, then choose LAMP and return to actual work.

There is no shortage of memory in the company, and we also attach great importance to stability. , so the LNAMP development model is the first choice, because most of the current development models separate the front and back ends, and the front-end page calls the back-end API interface, so nginx is used to process static pages. Another advantage is that nginx can also be used for mapping

Then why use apache? This is about SEO optimization. Complete separation of front-end and back-end pages is not conducive to SEO optimization, so some pages need to be written as pseudo-static pages. This is also to deal with SEO. An optimization strategy, so you need to use Apache to process these pages;

I have already mentioned the installation steps of LAMP, so I won’t repeat them here. Just talk about the installation process of nginx:

You can use the one-click installation package to install. I am used to using yum to install. Enter the command:

yum install nginx

The installation process will prompt you to type y/n , enter y directly to continue until the installation is completed. nginx is installed in the /etc/nginx directory. You can use the command to open and close nginx:

service nginx start   //启动

service nginx stop    //停止

service nginx restart //重启

I am starting When I got an error message, I was prompted that port 80 was occupied. It turned out that my httpd had already used port 80. At this time, I could either change the port of httpd to another port number and let nginx use 80, or directly change the port number of nginx, which I chose. For the latter, find the /etc/nginx/nginx.conf configuration file, open it and modify the port number:

netstat -tunlp

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