① What is Nginx?
Nginx is a high performance http server / reverse proxy server and e-mail (IMAP / POP3) proxy server. Official test, Nginx can support 50,000 concurrent links. And cpu, memory and other resource consumption is very low. Running very stable.
②Nginx scenarios.
If the development is a dynamic service, this time does not apply Nginx. Nginx is deployed static pages. If it is not purely static back-end code, this time is ideal for Nginx. Can provide higher concurrency, performance is much better than the dynamic website.
Nginx machine deployment needs and can communicate with external networks.
③ preparation before installing Nginx. Preparing the Environment.
First, you need to install gcc environment
yum install gcc-c++
Second, the need for third-party development kits PCRE
PCRE (Perl Compatible Regular Expressions) is a Perl library. Including perl-compatible regular expression library. Nginx http modules using the pcre regular expressions to parse, so it is necessary to install pcre library on Linux.
yum install -y pcre pcre-devel
Note: pcre-devel pcre developed using a secondary development library, Nginx also need this library.
Third, the need for third-party libraries zlib
zlib provides a variety of compression and decompression of the way, Nginx using zlib the contents of the package will be http gzip. So you need to install the zlib library on Linux.
yum install -y zlib zlib-devel
Fourth, the need for third-party libraries OpenSSL
OpenSSL is a powerful Secure Sockets Layer cryptographic library cryptographic algorithms include major, commonly used key and certificate management functionality that is packaged SSL protocol, and provides a wealth of applications for testing or other purposes, Nginx not only supports the http protocol also supports https (http over ssl ie transmission protocol), you need to install the openssl library on Linux.
yum install -y o