如果改變了Nginx的配置文件（nginx.conf)，想重啟Nginx，同樣可以通過發送系統信號給Nginx主進程的方式來進行．不過，重啟之前，要確認Nginx配置文件（nginx.conf）的語法是正確的，否則Nginx將不會加載新的配置文件。通過以下命令可以判斷Nginx配置文件是否正確：

/usr/local/webserver/nginx/sbin/nginx -t -c
/usr/local/webserver/nginx/conf/nginx.conf

如果配置文件不正確，屏幕將會提示配置文件的第幾行出錯：

[emerg]:unknowndirective"abc"inlusrllocaUwebserverlnginxjconflnginx.conf:55
Configurationfile/usr/local/webserver/nginx/conf/nginx·conf test failed

如果配置文件正確，屏幕將提示以下兩行信息：

The configuration file/usr/loca/webserver/nginx/conf/nginx.conf syntax is ok
Configuration file/usr/local/webserver/nginx/conf/nginx.conf test is successful

這時候，就可以平滑重啟Nginx了。

復制代碼 代碼如下:

/usr/local/www/nginx/sbin/nginx -xs reloadx

復制代碼 代碼如下:

killx -HUP `cat /usr/local/www/nginx/logs/nginx.pidx`

下面是一些補充：

平滑重啟 kill -HUP `cat /usr/local/www/nginx/logs/nginx.pid`

平滑升級nginx

cd /yujialin
wget
tar zxvf nginx-1.0.6.tar.gz
cd nginx-1.0.6

/usr/local/www/nginx/sbin/nginx -V
nginx: nginx version: nginx/1.0.4
nginx: built by gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
nginx: configure arguments: --prefix=/usr/local/www/nginx --with-pcre=/yujialin/pcre-8.12 --with-http_stub_status_module --with-http_gzip_static_module
這步是要得到編譯參數

./configure --prefix=/usr/local/www/nginx --with-pcre=/yujialin/pcre-8.12 --with-http_stub_status_module --with-http_gzip_static_module
用上面這段編譯

然后make，千萬別make install

make完了 在objs目錄下就多了個nginx，這個就是新版本的程序了
mv /usr/local/www/nginx/sbin/nginx /usr/local/www/nginx/sbin/nginx-20110906
cp objs/nginx /usr/local/www/nginx/sbin/nginx

/usr/local/www/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 successfu

make upgrade 執行升級

執行完后 /usr/local/nginx/sbin/nginx -V
nginx: nginx version: nginx/1.0.6
nginx: built by gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
nginx: configure arguments: --prefix=/usr/local/www/nginx --with-pcre=/yujialin/pcre-8.12 --with-http_stub_status_module --with-http_gzip_static_module