aptitude install libfcgi-perl  spawn-fcgi

#!/usr/bin/perl
 
use FCGI;
use Socket;
use POSIX qw(setsid);
 
require 'syscall.ph';
 
&daemonize;
 
#this keeps the program alive or something after exec'ing perl scripts
END() { } BEGIN() { }
*CORE::GLOBAL::exit = sub { die "fakeexit\nrc=".shift()."\n"; }; 
eval q{exit}; 
if ($@) { 
	exit unless $@ =~ /^fakeexit/; 
};
 
&main;
 
sub daemonize() {
    chdir '/'                 or die "Can't chdir to /: $!";
    defined(my $pid = fork)   or die "Can't fork: $!";
    exit if $pid;
    setsid                    or die "Can't start a new session: $!";
    umask 0;
}
 
sub main {
        $socket = FCGI::OpenSocket( "127.0.0.1:8999", 200 ); #use IP sockets
        $request = FCGI::Request( \*STDIN, \*STDOUT, \*STDERR, \%req_params, $socket );
        if ($request) { request_loop()};
            FCGI::CloseSocket( $socket );
}
 
sub request_loop {
        while( $request->Accept() >= 0 ) {
 
           #processing any STDIN input from WebServer (for CGI-POST actions)
           $stdin_passthrough ='';
           $req_len = 0 + $req_params{'CONTENT_LENGTH'};
           if (($req_params{'REQUEST_METHOD'} eq 'POST') && ($req_len != 0) ){ 
                my $bytes_read = 0;
                while ($bytes_read < $req_len) {
                        my $data = '';
                        my $bytes = read(STDIN, $data, ($req_len - $bytes_read));
                        last if ($bytes == 0 || !defined($bytes));
                        $stdin_passthrough .= $data;
                        $bytes_read += $bytes;
                }
            }
 
            #running the cgi app
            if ( (-x $req_params{SCRIPT_FILENAME}) &&  #can I execute this?
                 (-s $req_params{SCRIPT_FILENAME}) &&  #Is this file empty?
                 (-r $req_params{SCRIPT_FILENAME})     #can I read this file?
            ){
		pipe(CHILD_RD, PARENT_WR);
		my $pid = open(KID_TO_READ, "-|");
		unless(defined($pid)) {
			print("Content-type: text/plain\r\n\r\n");
                        print "Error: CGI app returned no output - ";
                        print "Executing $req_params{SCRIPT_FILENAME} failed !\n";
			next;
		}
		if ($pid > 0) {
			close(CHILD_RD);
			print PARENT_WR $stdin_passthrough;
			close(PARENT_WR);
 
			while(my $s = <KID_TO_READ>) { print $s; }
			close KID_TO_READ;
			waitpid($pid, 0);
		} else {
	                foreach $key ( keys %req_params){
        	           $ENV{$key} = $req_params{$key};
                	}
        	        # cd to the script's local directory
	                if ($req_params{SCRIPT_FILENAME} =~ /^(.*)\/[^\/]+$/) {
                        	chdir $1;
                	}
 
			close(PARENT_WR);
			close(STDIN);
			#fcntl(CHILD_RD, F_DUPFD, 0);
			syscall(&SYS_dup2, fileno(CHILD_RD), 0);
			#open(STDIN, "<&CHILD_RD");
			exec($req_params{SCRIPT_FILENAME});
			die("exec failed");
		}
            } 
            else {
                print("Content-type: text/plain\r\n\r\n");
                print "Error: No such CGI app - $req_params{SCRIPT_FILENAME} may not ";
                print "exist or is not executable by this process.\n";
            }
 
        }
}

chmod a+x /usr/bin/fastcgi-wrapper.pl

#!/bin/bash
### BEGIN INIT INFO
# Provides:          fastcgi-wrapper.pl
# Required-Start:    $local_fs $remote_fs $syslog $named $network $time
# Required-Stop:     $local_fs $remote_fs $syslog $named $network
# Should-Start:      
# Should-Stop:       
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
### END INIT INFO
 
PERL_SCRIPT=/usr/bin/fastcgi-wrapper.pl
FASTCGI_USER=www-data
RETVAL=0
case "$1" in
    start)
      su - $FASTCGI_USER -c $PERL_SCRIPT
      RETVAL=$?
  ;;
    stop)
      killall -9 fastcgi-wrapper.pl
      RETVAL=$?
  ;;
    restart)
      killall -9 fastcgi-wrapper.pl
      su - $FASTCGI_USER -c $PERL_SCRIPT
      RETVAL=$?
  ;;
    *)
      echo "Usage: perl-fastcgi {start|stop|restart}"
      exit 1
  ;;
esac      
exit $RETVAL

chmod 755 /etc/init.d/perl-fastcgi
update-rc.d perl-fastcgi defaults
/etc/init.d/perl-fastcgi start

#!/usr/bin/perl
 
print "Content-type:text/html\n\n";
print <<EndOfHTML;
<html><head><title>Perl Environment Variables</title></head>
<body>
<h1>Perl Environment Variables</h1>
EndOfHTML
 
foreach $key (sort(keys %ENV)) {
    print "$key = $ENV{$key}<br>\n";
}
 
print "</body></html>";

server {
    listen          80;
    server_name     awstats.domain.com;
 
    root            /var/www/awstats.domain.com/htdocs;
    index           index.php index.html;
    gzip            on;
    gzip_min_length 1000;
    gzip_types      text/plain text/xml application/xml application/x-javascript text/javascript text/css text/json;
    gzip_comp_level 5;
 
    location / {
        auth_basic  "restricted";
        auth_basic_user_file    /var/www/awstats.domain.com/.htpasswd;
    }    
    location ~ \.pl$ {
        auth_basic  "restricted";
        auth_basic_user_file    /var/www/awstats.domain.com/.htpasswd;
        gzip off;
        fastcgi_pass  127.0.0.1:8999;
        fastcgi_param SCRIPT_FILENAME /var/www/awstats.domain.com/htdocs$fastcgi_script_name;
        fastcgi_param QUERY_STRING     $query_string;
        fastcgi_param REQUEST_METHOD   $request_method;
        fastcgi_param CONTENT_TYPE     $content_type;
        fastcgi_param CONTENT_LENGTH   $content_length;
        fastcgi_param GATEWAY_INTERFACE  CGI/1.1;
        fastcgi_param SERVER_SOFTWARE    nginx;
        fastcgi_param SCRIPT_NAME        $fastcgi_script_name;
        fastcgi_param REQUEST_URI        $request_uri;
        fastcgi_param DOCUMENT_URI       $document_uri;
        fastcgi_param DOCUMENT_ROOT      $document_root;
        fastcgi_param SERVER_PROTOCOL    $server_protocol;
        fastcgi_param REMOTE_ADDR        $remote_addr;
        fastcgi_param REMOTE_PORT        $remote_port;
        fastcgi_param SERVER_ADDR        $server_addr;
        fastcgi_param SERVER_PORT        $server_port;
        fastcgi_param SERVER_NAME        $server_name;
    }
}