nginx安装

安装依赖，安装前准备
yum install gcc
yum install pcre-devel
yum install zlib zlib-devel
yum install openssl openssl-devel

下载解压安装包
//创建一个文件夹
cd /usr/local
mkdir nginx
cd nginx
//下载tar包
wget http://nginx.org/download/nginx-1.13.7.tar.gz
tar -xvf nginx-1.13.7.tar.gz

安装nginx
//进入nginx目录
cd /usr/local/nginx
//执行命令
./configure
//执行make命令
make
//执行make install命令
make install

# //测试配置文件
[root@VM-4-3-centos nginx]# ./sbin/nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

# nginx启动命令
[root@VM-4-3-centos sbin]# ./nginx
# nginx停止命令 或者 : nginx -s quit
[root@VM-4-3-centos sbin]# ./nginx -s stop
[root@VM-4-3-centos sbin]# ps -ef | grep nginx
root 26194 22309 0 15:44 pts/0 00:00:00 grep --color=auto nginx

如果是已经停止服务了，是不可以重启的。只有在正常运行的情况下，才可以reload重启。
# 重启命令
[root@VM-4-3-centos sbin]# ./nginx -s reload
nginx: [error] open() "/usr/local/nginx/logs/nginx.pid" failed (2: No such file or directory)
[root@VM-4-3-centos sbin]# ./nginx
# 查看进程命令
[root@VM-4-3-centos sbin]# ps -ef | grep nginx
root 26291 1 0 15:44 ? 00:00:00 nginx: master process ./nginx
nobody 26292 26291 0 15:44 ? 00:00:00 nginx: worker process
root 26309 22309 0 15:44 pts/0 00:00:00 grep --color=auto nginx
[root@VM-4-3-centos sbin]# ./nginx -s reload
[root@VM-4-3-centos sbin]# ps -ef | grep nginx
root 26291 1 0 15:44 ? 00:00:00 nginx: master process ./nginx
nobody 26396 26291 0 15:45 ? 00:00:00 nginx: worker process
root 26411 22309 0 15:45 pts/0 00:00:00 grep --color=auto nginx

# 测试访问
[root@VM-4-3-centos conf]# curl http://127.0.0.1:80