ulimit -HSn 8192 echo 1024 32768 > /proc/sys/net/ipv4/ip_local_port_range

#! /bin/sh
#
# squid      Startup script for the SQUID HTTP proxy-cache.
#
# Version:   @(#)squid.rc  2.20  01-Oct-2001  miquels@cistron.nl
#
### BEGIN INIT INFO
# Provides:          squid
# Required-Start:    $local_fs $network
# Required-Stop:     $local_fs $network
# Should-Start:      $named
# Should-Stop:       $named
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Squid HTTP Proxy
### END INIT INFO

NAME=squid
DAEMON=/usr/sbin/squid
LIB=/usr/lib/squid
PIDFILE=/var/run/$NAME.pid
SQUID_ARGS="-D -sYC"

[ ! -f /etc/default/squid ] || . /etc/default/squid

. /lib/lsb/init-functions

PATH=/bin:/usr/bin:/sbin:/usr/sbin

[ -x $DAEMON ] || exit 0

grepconf () {
  w="    " # space tab
  sq=/etc/squid/squid.conf
  # sed is cool.
  res=`sed -ne '
     s/^'$1'['"$w"']\+\([^'"$w"']\+\).*$/\1/p;
     t end;
     d;
     :end q' < $sq`
  [ -n "$res" ] || res=$2
  echo "$res"
}

grepconf2 () {
  w="    " # space tab
  sq=/etc/squid/$NAME.conf
  # sed is cool.
  res=`sed -ne '
     s/^'$1'['"$w"']\+[^'"$w"']\+['"$w"']\+\([^'"$w"']\+\).*$/\1/p;
     t end;
     d;
     :end q' < $sq`
  [ -n "$res" ] || res=$2
  echo "$res"
}

#
#   Try to increase the # of filedescriptors we can open.
#
maxfds () {
  [ -n "$SQUID_MAXFD" ] || return
  [ -f /proc/sys/fs/file-max ] || return 0
  [ $SQUID_MAXFD -le 4096 ] || SQUID_MAXFD=4096
  global_file_max=`cat /proc/sys/fs/file-max`
  minimal_file_max=$(($SQUID_MAXFD + 4096))
  if [ "$global_file_max" -lt $minimal_file_max ]
  then
     echo $minimal_file_max > /proc/sys/fs/file-max
  fi
  ulimit -n $SQUID_MAXFD
}

start () {
  cdr=`grepconf2 cache_dir /var/spool/$NAME`

  case "$cdr" in
     [0-9]*)
        log_failure_msg "squid: squid.conf contains 2.2.5 syntax -
not starting!"
        log_end_msg 1
        exit 1
        ;;
  esac

  #
   # Create spool dirs if they don't exist.
   #
  if [ -d "$cdr" -a ! -d "$cdr/00" ]
  then
     log_warning_msg "Creating squid spool directory structure"
     $DAEMON -z
  fi

  if [ "$CHUID" = "" ]; then
     CHUID=root
  fi

  maxfds
  umask 027
  cd $cdr
  start-stop-daemon --quiet --start \
     --pidfile $PIDFILE \
     --chuid $CHUID \
     --exec $DAEMON -- $SQUID_ARGS < /dev/null
  return $?
}

stop () {
  PID=`cat $PIDFILE 2>/dev/null`
  start-stop-daemon --stop --quiet --pidfile $PIDFILE --name squid
  #
  #   Now we have to wait until squid has _really_ stopped.
  #
  sleep 2
  if test -n "$PID" && kill -0 $PID 2>/dev/null
  then
     log_action_begin_msg " Waiting"
     cnt=0
     while kill -0 $PID 2>/dev/null
     do
        cnt=`expr $cnt + 1`
        if [ $cnt -gt 24 ]
        then
           log_action_end_msg 1
           return 1
        fi
        sleep 5
        log_action_cont_msg ""
     done
     log_action_end_msg 0
     return 0
  else
     return 0
  fi
}

case "$1" in
   start)
  log_daemon_msg "Starting Squid HTTP proxy" "squid"
  if start ; then
     log_end_msg $?
  else
     log_end_msg $?
  fi
  ;;
   stop)
  log_daemon_msg "Stopping Squid HTTP proxy" "squid"
  if stop ; then
     log_end_msg $?
  else
     log_end_msg $?
  fi
  ;;
   reload|force-reload)
  log_action_msg "Reloading Squid configuration files"
  start-stop-daemon --stop --signal 1 \
     --pidfile $PIDFILE --quiet --exec $DAEMON
  log_action_end_msg 0
  ;;
   restart)
  log_daemon_msg "Restarting Squid HTTP proxy" "squid"
  stop
  if start ; then
     log_end_msg $?
  else
     log_end_msg $?
  fi
  ;;
   *)
  echo "Usage: /etc/init.d/$NAME {start|stop|reload|force-reload|restart}"
  exit 3
  ;;
esac

exit 0