centos7系统安装配置nginx

1、去官网http://nginx.org/en/download.html下载最新nginx安装包，我下载的是nginx-1.10.1.tar.gz版本，将压缩包放入自己的/usr/local/mySoftWare目录下，准备采用编译方式安装。使用Ftp工具上传新建目录的时候注意权限，如果不是管理员用户，需要使用管理员用户对文件夹添加权限，chmod -R 777 mySoftWare。使用tar命令将其解压到当前目录：

tar -zvxf nginx-1.10.1.tar.gz

2、准备编译环境：安装编译工具，

$yum -y install gcc gcc-c++ autoconf automake

$yum -y install zlib zlib-devel openssl openssl-devel pcre-devel

说明：
pcre: 用来作地址重写的功能。
zlib：nginx 的gzip模块,传输数据打包，省流量（但消耗资源）。
openssl：提供ssl加密协议

3、创建用户组和用户，编译nginx时使用

$ sudo groupadd -r www
$ sudo useradd -s /sbin/nologin -g www -r www

4、编译安装

进入nginx安装目录，输入命令./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module

进行编译，编译成功后会看到如下信息：

checking for OS
 + Linux 3.10.0-327.el7.x86_64 x86_64
checking for C compiler ... found
 + using GNU C compiler
 + gcc version: 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC) 
checking for gcc -pipe switch ... found
checking for -Wl,-E switch ... found
checking for gcc builtin atomic operations ... found
checking for C99 variadic macros ... found
checking for gcc variadic macros ... found
checking for gcc builtin 64 bit byteswap ... found
checking for unistd.h ... found
checking for inttypes.h ... found
checking for limits.h ... found
checking for sys/filio.h ... not found
checking for sys/param.h ... found
checking for sys/mount.h ... found
checking for sys/statvfs.h ... found
checking for crypt.h ... found
checking for Linux specific features
checking for epoll ... found
checking for EPOLLRDHUP ... found
checking for O_PATH ... found
checking for sendfile() ... found
checking for sendfile64() ... found
checking for sys/prctl.h ... found
checking for prctl(PR_SET_DUMPABLE) ... found
checking for sched_setaffinity() ... found
checking for crypt_r() ... found
checking for sys/vfs.h ... found
checking for poll() ... found
checking for /dev/poll ... not found
checking for kqueue ... not found
checking for crypt() ... not found
checking for crypt() in libcrypt ... found
checking for F_READAHEAD ... not found
checking for posix_fadvise() ... found
checking for O_DIRECT ... found
checking for F_NOCACHE ... not found
checking for directio() ... not found
checking for statfs() ... found
checking for statvfs() ... found
checking for dlopen() ... not found
checking for dlopen() in libdl ... found
checking for sched_yield() ... found
checking for SO_SETFIB ... not found
checking for SO_REUSEPORT ... found
checking for SO_ACCEPTFILTER ... not found
checking for IP_RECVDSTADDR ... not found
checking for IP_PKTINFO ... found
checking for IPV6_RECVPKTINFO ... found
checking for TCP_DEFER_ACCEPT ... found
checking for TCP_KEEPIDLE ... found
checking for TCP_FASTOPEN ... found
checking for TCP_INFO ... found
checking for accept4() ... found
checking for eventfd() ... found
checking for int size ... 4 bytes
checking for long size ... 8 bytes
checking for long long size ... 8 bytes
checking for void * size ... 8 bytes
checking for uint32_t ... found
checking for uint64_t ... found
checking for sig_atomic_t ... found
checking for sig_atomic_t size ... 4 bytes
checking for socklen_t ... found
checking for in_addr_t ... found
checking for in_port_t ... found
checking for rlim_t ... found
checking for uintptr_t ... uintptr_t found
checking for system byte ordering ... little endian
checking for size_t size ... 8 bytes
checking for off_t size ... 8 bytes
checking for time_t size ... 8 bytes
checking for setproctitle() ... not found
checking for pread() ... found
checking for pwrite() ... found
checking for pwritev() ... found
checking for sys_nerr ... found
checking for localtime_r() ... found
checking for posix_memalign() ... found
checking for memalign() ... found
checking for mmap(MAP_ANON|MAP_SHARED) ... found
checking for mmap("/dev/zero", MAP_SHARED) ... found
checking for System V shared memory ... found
checking for POSIX semaphores ... not found
checking for POSIX semaphores in libpthread ... found
checking for struct msghdr.msg_control ... found
checking for ioctl(FIONBIO) ... found
checking for struct tm.tm_gmtoff ... found
checking for struct dirent.d_namlen ... not found
checking for struct dirent.d_type ... found
checking for sysconf(_SC_NPROCESSORS_ONLN) ... found
checking for openat(), fstatat() ... found
checking for getaddrinfo() ... found
checking for PCRE library ... found
checking for PCRE JIT support ... found
checking for OpenSSL library ... found
checking for zlib library ... found
creating objs/Makefile


Configuration summary
  + using system PCRE library
  + using system OpenSSL library
  + md5: using OpenSSL library
  + sha1: using OpenSSL library
  + using system zlib library

  nginx path prefix: "/usr/local/nginx"
  nginx binary file: "/usr/local/nginx/sbin/nginx"
  nginx modules path: "/usr/local/nginx/modules"
  nginx configuration prefix: "/usr/local/nginx/conf"
  nginx configuration file: "/usr/local/nginx/conf/nginx.conf"
  nginx pid file: "/usr/local/nginx/logs/nginx.pid"
  nginx error log file: "/usr/local/nginx/logs/error.log"
  nginx http access log file: "/usr/local/nginx/logs/access.log"
  nginx http client request body temporary files: "client_body_temp"
  nginx http proxy temporary files: "proxy_temp"
  nginx http fastcgi temporary files: "fastcgi_temp"
  nginx http uwsgi temporary files: "uwsgi_temp"
  nginx http scgi temporary files: "scgi_temp"

编译成功。然后输入$ make && make install命令进行安装

5、成功安装后，添加service服务脚本

CentOS 7的服务systemctl脚本存放在：/usr/lib/systemd/，有系统（system）和用户（user）之分，像需要开机不登陆就能运行的程序，还是存在系统服务里吧，即：/usr/lib/systemd/system目录下

编写nginx.service文件，内容如下（注意各个路径，pid路径要和nginx配置文件pid一致，否则启动报错）

[Unit]
Description=nginx - high performance web server
Documentation=http://nginx.org/en/docs/
After=network.target remote-fs.target nss-lookup.target


[Service]
Type=forking
PIDFile=/usr/local/nginx/nginx.pid
ExecStartPre=/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true


[Install]
WantedBy=multi-user.target

6、启动nginx

命令systemctl status nginx.service查看nginx启动状态。

命令systemctl start nginx.service启动nginx。

命令systemctl stop nginx.service停止nginx。

启动后，在浏览器输入http://192.168.195.130看是否能进入nginx欢迎页面，如果进入发现System.Net.Sockets.SocketException 由于目标计算机积极拒绝，无法连接。 192.168.195.130:80

则是由于防火墙的原因，关闭防火墙即可，systemctl stop firewalld.service

若是不想关闭防火墙，添加相应端口也可以，firewall-cmd --zOne=public --add-port=80/tcp --permanent （permanent为永久添加，重启还有）

查询端口：firewall-cmd --permanent --query-port=80/tcp