nginx

1.
        location ^~ /xx/yyyy/ {
                root /data/www;
                rewrite (.*) /filename.txt break;
        }

        location ^~ /xx/yyyy/ {
                root /data/www;
                if ($request_method !~ ^POST) {
                        set $memcached_key $request_uri;
                        memcached_pass 10.1.0.0:11211;
                        error_page 404 = /filename.txt;
                }
                error_page 404 = /filename.txt;
        }

2.切割日志：
    0 */1 * * * /usr/local/nginx/logs/cutlog.sh >/dev/null
    cutlog.sh
        logdir="/usr/local/nginx/logs"
        pid=`cat $logdir/nginx.pid`
        DATE=`date -d "1 hours ago" +%Y%m%d%H`
        DATE_OLD=`date -d "30 days ago" +%Y%m%d`
        for i in `ls $logdir/*access.log`; do
                mv $i $i.$DATE
        done
        for i in `ls $logdir/*error.log`; do
                mv $i $i.$DATE
        done
        for i in `ls $logdir/*watchdog.log`; do
                mv $i $i.$DATE
        done

        kill -s USR1 $pid
        #rm -v $logdir"/access.log."$DATE_OLD*
        #rm -v $logdir"/error.log."$DATE_OLD*
        #rm -v $logdir"/watchdog.log."$DATE_OLD*

        #VDATE_OLD=`date -d "10 days ago" +%Y-%m-%d`
        #rm -v /data/vrslogs/*.log."$VDATE_OLD"
        #rm -v /data/vrslogs/proxool.log."$VDATE_OLD"

        #echo > /data/resin/log/jvm-default.log

3.nginx中配置跨域支持功能
        在nginx.conf中配置
        http {
          ......
          add_header Access-Control-Allow-Origin *;
          add_header Access-Control-Allow-Headers X-Requested-With;
          add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
          ......
        }
        这样就可以实现GET,POST,OPTIONS的跨域请求的支持
        也可以 add_header Access-Control-Allow-Origin http://test.testing.com; --指定允许的url;