Nginx Rule

Install
yum install pcre-devel -y
cd /usr/local/src
wget http://www.myciscolab.net/sources/Agentzh-headers-more-nginx-module-v0.15rc1-3-g6a12aa5.tar.gz
wget http://www.myciscolab.net/sources/Evanmiller-nginx_upstream_hash-2580b21.tar.gz
wget http://www.myciscolab.net/sources/FRiCKLE-ngx_cache_purge-1.3-0-gaf6e0c7.tar.gz
wget http://www.myciscolab.net/sources/Nginx-1.0.2.tar.gz
wget http://www.myciscolab.net/sources/Nginx-upstream-jvm-route-0.1.tar.gz
wget http://www.myciscolab.net/sources/Replay-ngx_http_consistent_hash-77b6940.tar.gz
yum install -y openssl-devel gcc pcre-devel 
cd /usr/local/src
tar xzvf Nginx-1.0.2.tar.gz
cd /usr/local/src
tar xzvf Evanmiller-nginx_upstream_hash-2580b21.tar.gz
cd /usr/local/src/nginx-1.0.2
patch -p0 < /usr/local/src/evanmiller-nginx_upstream_hash-2580b21/nginx.patch
cd /usr/local/src
tar xzvf Nginx-upstream-jvm-route-0.1.tar.gz
cd /usr/local/src/nginx-1.0.2
patch -p0 < /usr/local/src/nginx_upstream_jvm_route/jvm_route.patch
cd /usr/local/src
tar xzvf Replay-ngx_http_consistent_hash-77b6940.tar.gz
cd /usr/local/src
tar xzvf Agentzh-headers-more-nginx-module-v0.15rc1-3-g6a12aa5.tar.gz
cd /usr/local/src
tar xzvf FRiCKLE-ngx_cache_purge-1.3-0-gaf6e0c7.tar.gz

vi /usr/local/src/nginx-1.0.2/src/http/ngx_http_upstream.h 删除 125 126

cd /usr/local/src/nginx-1.0.2 
./configure --prefix=/usr/local/nginx-1.0.2 --with-debug --with-http_ssl_module --with-http_stub_status_module \
--add-module=/usr/local/src/replay-ngx_http_consistent_hash-77b6940/ \
--add-module=/usr/local/src/evanmiller-nginx_upstream_hash-2580b21/ \
--add-module=/usr/local/src/nginx_upstream_jvm_route/ \
--add-module=/usr/local/src/agentzh-headers-more-nginx-module-6a12aa5/ \
--add-module=/usr/local/src/FRiCKLE-ngx_cache_purge-af6e0c7/
make && make install

ln -s /usr/local/nginx-1.0.2 /usr/local/nginx


Nginx Startup Script

########nginx 启动脚本#########
#!/bin/sh
#
# nginx - this script starts and stops the nginx daemin
# Taken from http://www.hikaro.com
# chkconfig:   - 85 15
# description:  Nginx is an HTTP(S) server, HTTP(S) reverse \
#               proxy and IMAP/POP3 proxy server
# processname: nginx
# config:      /usr/local/nginx/conf/nginx.conf
# pidfile:     /usr/local/nginx/logs/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/local/nginx/sbin/nginx"
prog=$(basename $nginx)

NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"

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
}

restart() {
    configtest || return $?
    stop
    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
#######################################

3. Purge one js or css file with the command followed.
curl -H "Host: static.test.com" http://1.1.1.1/1.js -I

4. Rewrite

server {
if ( $request_uri ~ '/flash/1.swf') { rewrite ^(.*) http://static.test.com/flash/1.swf permanent;}
}

rewrite ^/A/B$ /1.html last;


5. Nginx Status

Active connections: 291
server accepts handled requests
  16630948 16630948 31070465
Reading: 6 Writing: 179 Waiting: 106

server accepts handled requests -- nginx accepted 16630948 connections, handled 16630948 connections (no one was closed just it was accepted), and handles 31070465 requests (1.8 requests per connection)

reading -- nginx reads request header

writing -- nginx reads request body, processes request, or writes response to a client

waiting -- keep-alive connections, actually it is active - (reading + writing)

Ref:
http://www.cyberciti.biz/faq/nginx-see-active-connections-connections-per-seconds/


6. Filter
if ($http_user_agent ~* NSPlayer.*){ return 403; }