如果没有安装过nginx请看：linux下nginx部署以及配置详解
1、第一个nginx已经安装完成后，现在安装第二个nginx
启动：sudo /usr/sbin/nginx3 重起：sudo /usr/sbin/nginx3 -s reload 停止：sudo /usr/sbin/nginx3 -s stop
一、进入nginx目录进行编译安装
1、切换目录：
cd /usr/local/src/nginx-1.16.1
安装第二个路径会有所不同，我这里安装的是第三个nginx3，如果要安装4个 就改为nginx4，需要注意nginx.conf不需要改变，命令如下：
./configure \ --prefix=/usr/local/nginx3 \ --sbin-path=/usr/sbin/nginx3 \ --conf-path=/etc/nginx3/nginx.conf \ --error-log-path=/var/log/nginx3/error.log \ --http-log-path=/var/log/nginx3/access.log \ --pid-path=/var/run/nginx3.pid \ --lock-path=/var/run/nginx3.lock \ --http-client-body-temp-path=/var/tmp/nginx3/client \ --http-proxy-temp-path=/var/tmp/nginx3/proxy \ --http-fastcgi-temp-path=/var/tmp/nginx3/fcgi \ --http-uwsgi-temp-path=/var/tmp/nginx3/uwsgi \ --http-scgi-temp-path=/var/tmp/nginx3/scgi \ --user=nginx3 \ --group=nginx3 \ --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-ipv6 \ --with-http_v2_module \ --with-threads \ --with-stream \ --with-stream_ssl_module
执行完后下面就是nginx3的路径
2、安装编译：
make && make install
mkdir -pv /var/tmp/nginx3/client
3、添加SysV启动脚本
vi /etc/init.d/nginx3
按i进入编辑状态，需要多个nginx修改以下两个路径即可，如图
#!/bin/sh # # nginx - this script starts and stops the nginx daemon # # chkconfig: - 85 15 # description: Nginx is an HTTP(S) server, HTTP(S) reverse \ # proxy and IMAP/POP3 proxy server # processname: nginx # config: /etc/nginx/nginx.conf # config: /etc/sysconfig/nginx # pidfile: /var/run/nginx.pid # Source function library. . /etc/rc.d/init.d/functions # Source networking configuration. . /etc/sysconfig/network # Check that networking is up. [ "$NETWORKING" = "no" ] && exit 0 nginx="/usr/sbin/nginx3" prog=$(basename $nginx) NGINX_CONF_FILE="/etc/nginx3/nginx.conf" [ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx lockfile=/var/lock/subsys/nginx start() { [ -x $nginx ] || exit 5 [ -f $NGINX_CONF_FILE ] || exit 6 echo -n $"Starting $prog: " daemon $nginx -c $NGINX_CONF_FILE retval=$? echo [ $retval -eq 0 ] && touch $lockfile return $retval } stop() { echo -n $"Stopping $prog: " killproc $prog -QUIT retval=$? echo [ $retval -eq 0 ] && rm -f $lockfile return $retval killall -9 nginx } restart() { configtest || return $? stop sleep 1 start } reload() { configtest || return $? echo -n $"Reloading $prog: " killproc $nginx -HUP RETVAL=$? echo } force_reload() { restart } configtest() { $nginx -t -c $NGINX_CONF_FILE } rh_status() { status $prog } rh_status_q() { rh_status >/dev/null 2>&1 } case "$1" in start) rh_status_q && exit 0 $1 ;; stop) rh_status_q || exit 0 $1 ;; restart|configtest) $1 ;; reload) rh_status_q || exit 7 $1 ;; force-reload) force_reload ;; status) rh_status ;; condrestart|try-restart) rh_status_q || exit 0 ;; *) echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}" exit 2 esac
4.赋予脚本执行权限
chmod +x /etc/init.d/nginx3
8.添加nginx服务进程用户
groupadd -r nginx3
useradd -r -g nginx nginx3
9、添加至服务管理列表，设置开机自启
chkconfig --add nginx3
chkconfig nginx3 on
10、修改nginx.conf端口号，我这里改为81
vi /etc/nginx3/nginx.conf
11、启动nginx3
/usr/sbin/nginx3
查看端口号
netstat -lntp
11、在启动一个nginx
12、停止nginx3
sudo /usr/sbin/nginx3 -s stop
