diff --git a/README.md b/README.md
index 1cb62df..f1cf46b 100644
--- a/README.md
+++ b/README.md
@@ -201,4 +201,240 @@ $ sudo logrotate -d /etc/logrotate.conf # 確認系統是否有使用 /etc/logro
   endscript
 }
 
+```
+
+### 三、定期壓縮與刪除 log
+```sh
+# 開機網站自動起始
+$ sudo vim /etc/init.d/orbit # 內容建附註 orbit
+
+```
+
+```txt
+# 附註 orbit
+#!/bin/bash
+
+ORBIT_USER=rulingcom
+
+if [ -f "/home/$ORBIT_USER/.rvm/scripts/rvm" ]; then
+    source /home/$ORBIT_USER/.rvm/scripts/rvm
+    rvm use default
+else
+    if [ "$1" != "setup" ]; then
+        echo ""
+        echo "-----------------------------------------------------"
+        echo "Orbit server dependencies is missing. Please run setup first."
+        echo "command:    service orbit setup"
+        echo "-----------------------------------------------------"
+        echo ""
+        exit 0;
+    fi
+fi
+
+ORBIT_SITES=`pwd`
+ORBIT_GIT=http://gitlab.tp.rulingcom.com/saurabh/orbit4-5.git
+NGINX_ORBIT_SITES=/etc/nginx/orbit_sites
+
+RAILS_ENV=production
+
+sig () {
+    test -s "$ORBIT_ROOT/tmp/pids/unicorn.pid" && kill -$1 `cat $ORBIT_ROOT/tmp/pids/unicorn.pid`
+}
+
+get_orbit_root () {
+    if [ ! -f $NGINX_ORBIT_SITES/$1 ]; then echo "Site $1 not found" && exit 0; fi
+    ORBIT_ROOT=`cat $NGINX_ORBIT_SITES/$1 | grep 'root'`;
+    ORBIT_ROOT=${ORBIT_ROOT//"/public;"/""};
+    ORBIT_ROOT=${ORBIT_ROOT//"root"/""};
+    ORBIT_ROOT=${ORBIT_ROOT//" "/""};
+    if [ ! -d $ORBIT_ROOT ]; then echo "Site folder $ORBIT_ROOT not fount" && exit 0; fi
+}
+
+start_orbit () {
+    sig 0 $ORBIT_ROOT && echo >&2 "$ORBIT_ROOT Already running" && continue;
+    if [ ! -d "$ORBIT_ROOT/public/assets" ]; then
+    sudo su -l $ORBIT_USER -c  "cd $ORBIT_ROOT && git fetch origin && git pull origin master && bundle"
+    sudo su -l $ORBIT_USER -c  "cd $ORBIT_ROOT && bundle exec rake assets:precompile RAILS_ENV=production"
+    fi
+    echo "Starting $ORBIT_ROOT";
+    sudo su -l $ORBIT_USER -c "cd $ORBIT_ROOT && bundle exec unicorn_rails -D -E $RAILS_ENV -c $ORBIT_ROOT/config/unicorn.rb";
+}
+
+case $1 in
+start)
+    if [ ! -z "$2" ]; then
+        get_orbit_root $2
+        start_orbit
+    else
+        for APP in `ls -1 $NGINX_ORBIT_SITES`; do
+          get_orbit_root $APP;
+          start_orbit;
+        done
+    fi
+
+    exit 0;
+    ;;
+stop)
+    while [ `whoami` != "root" ]; do
+        if [ ! -z "$2" ]; then
+            read -p "Stop Orbit $2? (y/n)  " CONFIRM
+        else
+            read -p "Stop All Orbits? (y/n)  " CONFIRM
+        fi
+        case "$CONFIRM" in
+            y|Y ) break;;
+            n|N ) exit 0;;
+            * ) echo "(y/n)";;
+        esac
+    done
+    if [ ! -z "$2" ]; then
+        get_orbit_root $2
+        echo "Stopping $ORBIT_ROOT"
+        sig QUIT
+    else
+        for APP in `ls -1 $NGINX_ORBIT_SITES`; do
+          get_orbit_root $APP;
+          echo "Stopping $ORBIT_ROOT";
+          sig QUIT && continue;
+        done
+    fi
+    exit 0;
+    ;;
+force-stop)
+    while true; do
+        if [ ! -z "$2" ]; then
+            read -p "Stop Orbit $2? (y/n)  " CONFIRM
+        else
+            read -p "Stop All Orbits? (y/n)  " CONFIRM
+        fi
+        case "$CONFIRM" in
+            y|Y ) break;;
+            n|N ) exit 0;;
+            * ) echo "(y/n)";;
+        esac
+    done
+    if [ ! -z "$2" ]; then
+        get_orbit_root $2
+        echo "Stopping $ORBIT_ROOT"
+        sig TERM
+    else
+        for APP in `ls -1 $NGINX_ORBIT_SITES`; do
+          get_orbit_root $APP;
+          echo "Stopping $ORBIT_ROOT";
+          sig TERM && continue;
+        done
+    fi
+    exit 0;
+    ;;
+restart|reload)
+    if [ ! -z "$2" ]; then
+        get_orbit_root $2
+        sig USR2 && echo "$ORBIT_ROOT reloaded OK" && exit 0
+        echo >&2 "Couldn't reload $ORBIT_ROOT, starting instead"
+        start_orbit
+    else
+        for APP in `ls -1 $NGINX_ORBIT_SITES`; do
+          get_orbit_root $APP;
+          sig USR2 && echo "$ORBIT_ROOT reloaded OK" && continue;
+          echo >&2 "Couldn't reload $ORBIT_ROOT, starting instead";
+          start_orbit;
+        done
+    fi
+    exit 0;
+    ;;
+create)
+    if [ "$0" == "/etc/init.d/orbit" ]; then
+        echo "Don't use service to create."
+        echo "Use:  orbit create $2"
+        exit 0
+    fi
+    test -s "$NGINX_ORBIT_SITES/$2" && echo "Site $2 already exist." && exit 0
+    test -s "$ORBIT_SITES/$2" && echo "File $ORBIT_SITES/$2 already exist." && exit 0
+
+    while true; do
+      read -p "nginx server name: " SERVER_NAME
+      if [ ! -z "$SERVER_NAME" ]; then break; fi
+    done
+
+    while true; do
+      read -p "port number: " PORT
+      if [ ! -z "$PORT" ]; then break; fi
+    done
+
+    while true; do
+      read -p "database name: " DATABASE
+      if [ ! -z "$DATABASE" ]; then break; fi
+    done
+
+    echo "-----------------------------------------------------"
+    echo "Path: $ORBIT_SITES/$2"
+    echo "Database: $DATABASE"
+    echo http://$SERVER_NAME:$PORT
+    echo "-----------------------------------------------------"
+
+    while true; do
+        read -p "Create Orbit $2? (y/n)  " CONFIRM
+        case "$CONFIRM" in
+            y|Y ) break;;
+            n|N ) exit 0;;
+            * ) echo "(y/n)";;
+        esac
+    done
+
+    cd ~
+    sudo wget http://installer.tp.rulingcom.com/nginx4-5.conf
+    sudo cp nginx4-5.conf $NGINX_ORBIT_SITES/$2
+    sudo rm nginx4-5.conf
+    sudo perl -pi -e "s/{{ORBIT}}/$2/g" $NGINX_ORBIT_SITES/$2
+    sudo perl -pi -e "s#{{ORBIT_SITES}}#${ORBIT_SITES}#g" $NGINX_ORBIT_SITES/$2
+    sudo perl -pi -e "s/{{PORT}}/$PORT/g" $NGINX_ORBIT_SITES/$2
+    sudo perl -pi -e "s/{{SERVER_NAME}}/$SERVER_NAME/g" $NGINX_ORBIT_SITES/$2
+    sudo service nginx reload
+
+    sudo su -l $ORBIT_USER -c "cd $ORBIT_SITES && git clone $ORBIT_GIT $2 && cd $2 && bundle"
+    sudo su -l $ORBIT_USER -c "cd $ORBIT_SITES/$2 && perl -pi -e \"s/orbit_4_5/$DATABASE/g\" config/mongoid.yml"
+    sudo su -l $ORBIT_USER -c "cd $ORBIT_SITES/$2 && bundle exec rake assets:precompile RAILS_ENV=production"
+    sudo su -l $ORBIT_USER -c "cd $ORBIT_SITES/$2 && bundle exec unicorn_rails -D -E $RAILS_ENV -c $ORBIT_SITES/$2/config/unicorn.rb"
+    sudo su -l $ORBIT_USER -c "cd $ORBIT_SITES/$2 && bundle exec rake orbit_cron:install"
+
+    echo "-----------------------------------------------------"
+    echo "$2 is ready"
+    echo "Path: $ORBIT_SITES/$2"
+    echo http://`ifconfig eth0 2>/dev/null|awk '/inet addr:/ {print $2}'|sed 's/addr://'`:$PORT
+    echo "-----------------------------------------------------"
+
+    exit 0
+    ;;
+setup)
+    sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
+    sudo echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list
+
+    sudo apt-get update
+    sudo apt-get -y upgrade
+    sudo apt-get install -y nginx git-core mongodb-org imagemagick curl openssh-server nano
+
+    sudo mkdir $NGINX_ORBIT_SITES
+    sudo perl -pi -e "s/sites-enabled/orbit_sites/g" /etc/nginx/nginx.conf
+    sudo rm -r /etc/nginx/sites-*
+
+    sudo apt-get --no-install-recommends --yes install gawk g++ gcc make libc6-dev libreadline6-dev zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 autoconf libgdbm-dev libncurses5-dev automake libtool bison pkg-config libffi-dev
+
+    sudo su -l $ORBIT_USER -c "\curl -sSL https://get.rvm.io | bash -s stable"
+    sudo su -l $ORBIT_USER -c "rvm install 2.1 --default"
+    echo "gem: --no-ri --no-rdoc" > /home/$ORBIT_USER/.gemrc
+    source /home/$ORBIT_USER/.rvm/scripts/rvm
+
+    echo ""
+    echo "-----------------------------------------------------"
+    echo "System is ready. You can start creating Orbit servers."
+    echo "command:    orbit create Orbit_Folder_Name"
+    echo "-----------------------------------------------------"
+    echo ""
+    exit 0
+    ;;
+*)
+    echo >&2 "Usage $0 <start|stop|restart|force-stop|create|setup>"
+    exit 1
+    ;;
+esac
 ```
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