similar to: DMZ hosts gateway

While I''m in temporary retirement, I''ve decided spend a little time experimenting with new things and making some updates to the web site. The biggest result of this effort to date has been: http://shorewall.sf.net/Shorewall_Squid_Usage.html This outlines how to use Squid as a transparent proxy running on the firewall, in the DMZ or in the local network. In the latter two

That log message looks like someone (or some program) is trying to browse to moreover.com from your web server machine--it''s not a reply to an external request. You''d see messages like that if you were running some sort of HTTP proxy server (like Squid) on that box (although they''d likely be to multiple IPs, unless your users only browsed to p.moreover.com). It could

Two quick questions to the group: Anyone seen this before: Jan 14 02:55:45 gw1 kernel: Shorewall:all2all:REJECT:IN=eth1 OUT=eth0 SRC=66.58.99.83 DST=170.224.8.51 LEN=52 TOS=0x00 PREC=0x00 TTL=63 ID=38676 DF PROTO=TCP SPT=1735 DPT=80 WINDOW=5840 RES=0x00 SYN URGP=0 I mean my web server is trying to replay to some external host 170.224.8.51 (p.moreover.com) for some reason. What could be? It

Hi, I am trying to configure the SMTP service on DMZ host. Added the rule: ACCEPT wan dmz:66.58.99.84 tcp pop3 - ACCEPT wan dmz:66.58.99.84 tcp 25 - ACCEPT dmz:66.58.99.84 wan tcp 25 - ACCEPT dmz:66.58.99.84 wan tcp pop3 - issued shorewall clear, shorewall restart, but still couldn''t telnet to the mail server

Group, I am reading about tc (traffic control) and willing to get my feet wet. As requirement, there should be HTB compiled in the kernel. I grabbed a Mandrake 8.2 distro, and didn''t installed the kernel source. Anyone knows if the HTB is compiled in Mandrake 8.2, or point a way to find that out? I tried to read the /usr/src/kernel.xxxxx/.config file, but it doesn''t exists.

To rephrase the question, "Can I use masquerading and proxy ARP in the same zone simultaneously?" It''s not a stupid question--I couldn''t see any reason why it wouldn''t work, but I had actually try it out to convince myself that it did (which isn''t a bad thing to do before posting the question to the list, by the way). In any case, the answer is

Can someone help me with this problem: My host on the DMZ is inaccessible from the WAN on port 25. I tried to telnet but getting: $ telnet 66.58.99.84 25 Trying 66.58.99.84... telnet: Unable to connect to remote host: No route to host My shorewall/proxyarp is: #address interface external haveroute 66.58.99.82 eth1 eth0 No 66.58.99.84 eth1

Hello all, Name is Andrew and in desperate need of some info. Setup: - Mandrake 9.1 with three interfaces (eth0 --> WAN) C-class /28 network (with tree virtual addresses which I am DNAT-ing to the DMZ) (eth1 --> LAN) A-class 10.0.0.0/8 (eth2 --> DMZ) A-class subnet 10.1.123.0/24 - Running stock Shorewall ver: shorewall-1.3.14-3.1.91mdk Dilemma: - LAN can not access the DMZ zone

I have one question: Can I use routable and non-routable IP addreses together in the DMZ zone? I read the both three-interfaces setup and the Configuration Guide and each one explains how to do the either way? My problem is that, I have to use the public IP address for my DNS server (cannot change that), and setup additional web servers which will do port-forwarding (DNAT) through the firewall

I am quite new to Linux and have moved (almost) from a windoze NT4 environment. My present configuration is running SuSE V 8.0 with KDE3.0.5 desktop on two machines, connecting with Samba to an NT4 PC, and an occasional laptop or other PC that connects locally to the network. After a deal of searching, researching, and seeking advice I have decided to use Shorewall as my firewall.

Hi, in a three interface firewall I have eth0, loc, 10.1.5.1/16 eth1, int, 200.41.61.228/29 eth2, dmz, 192.168.1.1/24 (un)fortunately I got a group of public ip?s to use, so here is my problem in the dmz I have 192.168.1.3 redirected from eth1 alias 200.41.61.226 (a web server, works perfect). I am trying to set up a mail server also, a different machine, so I can?t use proxyarp, as with this,

Hi All, >From the documentation I have read on Shorewall, the preferred approach seems to be, to use Proxy ARP instead of Static NAT for hosting web servers in the DMZ Zone. But I have also read that this could cause problems for VPN configurations. I essentially have multiple public IP''s, which I want to map to private addresses in the DMZ. I also intend to setup a gateway between 2

Hi! Can I use the old version shorewall 1.2.12 configure as SNAT and DMZ ? Because Debian Linux came with the default shorewall 1.2.12 . Best Regards, Support

Hi, I have this case: My Shorewall is a internet gateway: (fw) eth0 -> 200.209.100.0/30 (loc) eth1 -> 192.168.0.0/24 (dmz) eth2 -> 200.209.100.8/30 In the DMZ, I have another linux, with a web server too. eth0 -> 200.209.100.10/30 - running Apache at port 1700 eth1 -> 192.168.0.0/24 My problem is: I need to make a NAT, from my local

Hello all, I''ve read the shorewall guides and browsed through the mailing lists, but I haven''t been able to find out if the following is possible or not using shorewall. Our provider has given us 16 IPs + 4 in a separate range for our uplink. I would like to replace that router with a Linux box running shorewall with three interfaces. I want the DMZ to be a standard, routed

Hello, I have been running Shorewall for quite some time at an ISP client of mine to protect his LAN. We have just upgraded to 2.2.4 and he now wants to put his servers in a DMZ. The servers have public IPs in two classes xxx.xxx.79.0 and xxx.xxx.242.0. The public IP on the router for each class is xxx.xxx.79.126 and xxx.xxx.242.126. I am using masq and 192.168.1.0 on eth0 LAN I have tried

Hi, I have a 3 interface FW like this: http://shorewall.greshko.com/GSLUG_files/slide0008_image004.png where I use PROXYARP to give the servers in DMZ an IP from our public IP range. A bit like this: http://shorewall.greshko.com/GSLUG_files/slide0042_image026.png proxyarp: xxx.23.52.145 eth1 eth0 - yes xxx.23.52.146 eth1 eth0 - yes xxx.23.52.147 eth1 eth0 - yes xxx.23.52.148 eth1 eth0 - yes

My sincere apologies to all on this list. After looking for returning packets with tcpdump and not finding ANY I called our provider to confirm our IP assignment. The IP range that I was given by my boss was incorrect. After adjusting the ip assignments, everything is working perfectly. Thank you all for your time in troubleshooting this, and I hope to be able to return the favor at some

When installing Mandrake 9.0 with the higher security option you cannot ping any of it interfaces, localhost (127.0.0.1) included. All other connections to the system are fine, e.g. ssh, www, squid, etc. "shorewall clear" doesn''t help. Does anyone know how to turn this off for at least localhost and eth1?? Yours truly, Ben

I''ve got a serious mess of NAT on our firewall/router systems at the corporate office which seems to do nothing other than confuse the heck out of people. What I''d like to do is gradually migrate the hosts on the various DMZ networks away from private IP addresses and NAT over to public IP addresses and proxyarp. What I''m wondering, before I start this, is how do I