查看当前版本是：1.10.3
[root@proxy nginx-1.10.3]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.10.3
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --user=nginx --group=nginx --prefix=/usr/local/nginx --with-http_ssl_module
下载新版本压缩包并解压到/opt目录下
[root@proxy opt]# tar -xf nginx-1.12.2.tar.gz -C /opt/
进入该目录
[root@proxy opt]# cd nginx-1.12.2/
[root@proxy nginx-1.12.2]# ls
auto CHANGES.ru configure html man src
CHANGES conf contrib LICENSE README
配置安装模块及信息
[root@proxy nginx-1.12.2]# ./configure --user=nginx --group=nginx --with-http_ssl_module
编译
[root@proxy nginx-1.12.2]# make
查看当前目录发现多了一个objs目录
[root@proxy nginx-1.12.2]# ls
auto CHANGES.ru configure html Makefile objs src
CHANGES conf contrib LICENSE man README
将之前的版本备份
[root@proxy nginx-1.12.2]# mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/old_nginx
将objs目录下新的nginx拷贝到/usr/local/nginx/sbin/目录下
[root@proxy nginx-1.12.2]# cp objs/nginx /usr/local/nginx/sbin/
查看升级后的版本为：1.12.2
[root@proxy nginx-1.12.2]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.12.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --user=nginx --group=nginx --with-http_ssl_module
最后，启动升级后的nginx
[root@proxy nginx-1.12.2]# make upgrade
/usr/local/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
kill -USR2 `cat /usr/local/nginx/logs/nginx.pid`
sleep 1
test -f /usr/local/nginx/logs/nginx.pid.oldbin
kill -QUIT `cat /usr/local/nginx/logs/nginx.pid.oldbin`
或者直接结束nginx进程重启
[root@proxy nginx-1.12.2]# pkill nginx
[root@proxy nginx-1.12.2]# /usr/local/nginx/sbin/nginx
查看80端口是否启动并被nginx所用
[root@proxy nginx-1.12.2]# netstat -ntulp |grep nginx
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 4502/nginx: master
至此，nginx升级成功！