1.安装nginx
安装依赖
yum -y install gcc gcc-c++ wget automake autoconf libtool libxml2-devel libxslt-devel perl-devel perl-ExtUtils-Embed pcre-devel openssl openssl-devel
创建一个不能登录的nginx运行用户
groupadd www-data
useradd -s /sbin/nologin -g www-data www-data
创建源码保存目录和运行时的临时文件夹，下载nginx源码，当前稳定版为nginx-1.22.1
mkdir -p /var/cache/nginx
mkdir -p /usr/local/src/nginx
cd /usr/local/src/nginx
wget -c http://nginx.org/download/nginx-1.22.1.tar.gz
解压
tar -zxvf nginx-1.22.1.tar.gz
cd /usr/local/src/nginx/nginx-1.22.1
编译前配置检查
./configure \
--prefix=/usr/local/nginx \
--sbin-path=/usr/local/nginx/sbin/nginx \
--conf-path=/usr/local/nginx/conf/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--pid-path=/var/run/nginx.pid \
--lock-path=/var/run/nginx.lock \
--http-client-body-temp-path=/var/cache/nginx/client_temp \
--http-proxy-temp-path=/var/cache/nginx/proxy_temp \
--http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp \
--http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp \
--http-scgi-temp-path=/var/cache/nginx/scgi_temp \
--user=www-data \
--group=www-data \
--with-pcre \
--with-http_v2_module \
--with-http_ssl_module \
--with-http_realip_module \
--with-http_addition_module \
--with-http_sub_module \
--with-http_dav_module \
--with-http_flv_module \
--with-http_mp4_module \
--with-http_gunzip_module \
--with-http_gzip_static_module \
--with-http_random_index_module \
--with-http_secure_link_module \
--with-http_stub_status_module \
--with-http_auth_request_module \
--with-mail \
--with-mail_ssl_module \
--with-file-aio \
--with-http_v2_module \
--with-threads \
--with-stream \
--with-stream_ssl_module
配置检查完毕，查看是否创建了Makefile，如果未创建成功，一般是因为缺失依赖包，根据提示安装依赖包。
编译，安装
make
make install
启动nginx
/usr/local/nginx/sbin/nginx
查看进程
ps aux|grep nginx
杀掉进程
pkill -9 nginx
配置服务
vim /usr/lib/systemd/system/nginx.service
输入如下配置
[Unit]
Description=nginx - high performance web server
Documentation=http://nginx.org/en/docs/
After=network-online.target remote-fs.target nss-lookup.target
Wants=network-online.target
[Service]
Type=forking
PIDFile=/var/run/nginx.pid
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s TERM $MAINPID
ExecStartPost=/bin/sleep 0.1
[Install]
WantedBy=multi-user.target
注意：如果你是单核服务器，需要加ExecStartPost=/bin/sleep 0.1
否则在执行systemctl start nginx之后，在执行systemctl status nginx时
会出现systemd[1]: Failed to read PID from file /var/run/nginx.pid: Invalid argument
这是因为nginx还未启动完成，systemctl就去寻找pid进程文件了，这是一个已知的bug
重新载入 systemd
systemctl daemon-reload
开启开机启动
systemctl enable nginx.service
启动和查看nginx状态
systemctl start nginx
systemctl status nginx