已安装版本
[root@ceshi100 nginx]# /opt/nginx/sbin/nginx -v
nginx version: nginx/1.14.0
升级版本
[root@ceshi100 nginx]# wget http://nginx.org/download/nginx-1.15.0.tar.gz
[root@ceshi100 nginx]# tar xf nginx-1.15.0.tar.gz
[root@ceshi100 nginx]# cd nginx-1.15.0
[root@ceshi100 nginx-1.15.0]# /opt/nginx/sbin/nginx -V
nginx version: nginx/1.14.0
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-18) (GCC)
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/opt/nginx --user=www --group=www --without-http_memcached_module --without-http_map_module --without-http_geo_module --with-http_stub_status_module --with-http_ssl_module --with-stream
[root@ceshi100 nginx-1.15.0]# ./configure --prefix=/opt/nginx --user=www --group=www --without-http_memcached_module --without-http_map_module --without-http_geo_module --with-http_stub_status_module --with-http_ssl_module --with-stream
[root@ceshi100 nginx-1.15.0]# make
[root@ceshi100 nginx-1.15.0]# cp /opt/nginx/sbin/nginx{,.old}
[root@ceshi100 nginx-1.15.0]# cd objs/
[root@ceshi100 objs]# cp -rfp nginx /opt/nginx/sbin/nginx
cp: overwrite `/opt/nginx/sbin/nginx'? y
然后执行下面操作：
kill -USR2 `cat /var/run/nginx.pid`
将旧版本Nginx的主进程将重命名为nginx.pid.oldbin，并执行新版本的Nginx可执行程序，启动新的主进程和新的工作进程，再次生成新的nginx.pid文件
kill -WINCH `cat /var/run/nginx.pid.oldbin`
平缓停止worker process(此步骤可省略)
kill -QUIT `cat /var/run/nginx.pid.oldbin`
平缓停止旧的Nginx服务进程
[root@ceshi100 objs]# /opt/nginx/sbin/nginx -v
nginx version: nginx/1.15.0
Nginx支持的信号
QUIT 平滑关闭
HUP 平滑重启，重新加载配置文件
USR1 重新打开日志文件
USR2 平滑升级可执行程序
WINCH 平滑关闭工作进程
添加新模块--with-http_realip_module
[root@baiduyun nginx]# tar xf nginx-1.15.2.tar.gz
[root@baiduyun nginx-1.15.2]# ./configure --prefix=/opt/nginx --user=www --group=www --with-http_ssl_module --with-http_realip_module
[root@baiduyun nginx-1.15.2]# make
[root@baiduyun nginx-1.15.2]# cp /opt/nginx/sbin/nginx{,.old}
[root@baiduyun nginx-1.15.2]# cd objs/
[root@baiduyun objs]# cp -rfp nginx /opt/nginx/sbin/nginx
cp: overwrite `/opt/nginx/sbin/nginx'? y
[root@baiduyun objs]# /opt/nginx/sbin/nginx -V
nginx version: nginx/1.15.2
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-23) (GCC)
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/opt/nginx --user=www --group=www --with-http_ssl_module --with-http_realip_module