Firewall problems on my ubuntu gw


 
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Old 01-04-2012
Firewall problems on my ubuntu gw

Hi,

I make an ubuntu based gateway with dns, dhcp, proxy and a firewall.
The problem is with the firewall, a classroom is connected to gw.eth1 with private ip
17.18.43.XX and gw.eth0 with public ip 134.201.34.XX is connected to internet trought 134.201.3.1 and others server like LDAP on 134.201.34.55 ect...


classroom.private172.18.43.101-143--------172.18.43.100[eth0] GW |dhcp|dns|ntp|proxy|firewall [eth1]134.201.34.55-----{LDAP/SMB}--{Cups}----{134.201.3.1GW}...(INTERNET)

My GW is on ubuntu server 11.04
I use firehol as firewall but LDAP can't connect to classroom trought GW and viceversa.

I'm new to linux and i don't find how i configure firehol, access to dns is needed by LDAP and others servers, classroom need LDAP,DNS,SMB,DHCP,TFTP for PXE,SSH, internet trought proxy.

thanks.



thanks
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Firewall(3pm)						  LogReport's Lire Documentation					     Firewall(3pm)

NAME
Lire::Firewall - supplies a subroutine enabling TCP and UDP portnumber-to-name mapping SYNOPSIS
use Lire::Firewall qw/:firewall_number2names /; DESCRIPTION
The Lire::Firewall::firewall_number2names converts numbers for network services, as commonly found in firewall log files, to their descriptive names. firewall_revolve FIXME TODO It takes a firewall Lire dlf object as argument, and operates on its to_port, from_port and protocol properties. TCP services, UDP services and ICMP types are supported. SEE ALSO
RPC 792 for ICMP types. VERSION
$Id: Firewall.pm,v 1.5 2006/07/23 13:16:27 vanbaal Exp $ COPYRIGHT
Copyright (C) 2000, 2001, 2002 Stichting LogReport Foundation LogReport@LogReport.org This file is part of Lire. Lire is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with http://www.gnu.org/copyleft/gpl.html. AUTHOR
Francis J. Lacoste <flacoste@logreport.org>. The first Lire implementation of a TCP and UDP portnumber-to-name mapping was written by Plamen Bozukov. Lire 2.1.1 2006-07-23 Firewall(3pm)