In computer security, a DMZ (demilitarized zone) is a physical or logical sub-network that contains and exposes services to a larger untrusted network (usually the Internet).

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Windows Server 2012 R2 Standard located in our DMZ has problems with connection to RoDC

We had an environment with multiple 2008 R2 DC:s in our internal LAN and a 2008 R2 RoDC:s in our DMZ. We set up 2008 R2 servers in our DMZ and joined them to the domain using DJOIN. Everything ...
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User authentication between websites

I have a website(X.com - Runs in Java platform) hosted on DMZ server. There is another website(Y.com - Runs in .NET platform) hosted in the same DMZ, tries to access X.com to show some information. ...
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108 views

Setting up a server behind Comcast Modem + Airport Time Capsule

I'm trying to set up port forwarding for a server behind an Airport Time Capsule that's behind a Comcast Arris modem. I'm trying to avoid changing the Arris modem to bridge mode, and instead using DMZ ...
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17 views

Grabbing DHCP from DMZ?

Is it possible to grab DHCP from the DMZ of a router above? Essentially i want to have a setup like this. DMZ DHCP ------> Router (master router) | | ...
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1answer
79 views

Router serving as DMZ host at the same time

My Linksys EA6700 wireless router supports DMZ. To configure DMZ I need to specify a DMZ host. As far as I understand, the DMZ host is a server which can be accessed from the Internet. As I have a ...
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33 views

Connecting to a computer inside a network [duplicate]

I have a network in my College which is connected to the internet. How can I access a system inside this network from the internet (WAN)? I don't have access to the gateway of the system, so port ...
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2answers
732 views

Asus router RT-N56U unnecessarily opens extra ports for a DMZ device

My Asus RT-N56U router (latest firmware 3.0.0.4.374_979) opens port UDP 3659 for a Playstation 3 which is already in DMZ. The DMZ was set up properly with a static IP assigned to the PS3 and the ...
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96 views

Using an internal xubuntu computer squid as proxy through router

I have a nasty firewall at work and I want to get "out" on the internet on more ports. How can I set up a proxy with this situation: xubuntu laptop & squid behind a router(I have dyn.com option in ...
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107 views

SSH to a computer in a DMZ

So here is a rough sketch of what my network currently looks like: From the .2 machine I would like to SSH into my .6 machine, however I am not even able to ping it. This all worked when I was on ...
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247 views

Cisco ASA 5520 as a home router

I have a Cisco ASA 5520 that I recently acquired from work that I am planning to use as my home router. I also have a Linksys E4200 router and a Linksys WRT610N router, both dual-band, that I would ...
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976 views

Samba - Access shares from internet

I've added my computer to my router's DMZ so all opened ports are accessible from the internet. I have a couple of Samba shares that currently have public read permission. I want all other computers ...
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526 views

DMZ forwarding on Cisco DPC/EPC2100 Cable Modem to Linksys Router for IP Cameras

I have one of the old Cisco DPC/EPC2100 Cable Modems and wanted to know if anyone has had any luck setting up DMZ on it? Link to modem: http://www.cisco.com/web/consumer/support/modem_DPC2100.html ...
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201 views

Hosting my website (IIS) 2 routers & a VMware VM involved - how to setup?

I have a modem-router from my ISP (in UK) this is a Technicolor TG582n, and a D-Link DIR-615 router. These are connected via cable, cable ends in the 'Internet' port of D-Link. I connect via Wi-Fi to ...
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465 views

Can't access DMZ host via public IP within LAN

Recently I replaced my old router with the Linksys E4200V2. I have a personal server, which is a DMZ host in my home network. I can access the server via the public IP of the router, since DMZ is set. ...
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1k views

How to setup DMZ in router with DD-WRT firmware?

I have a router d-link dir-300, flashed to dd-wrt v24. By the unknwon reasons web interface not working. Spawning in console httpd, didnt help. Now I need a DMZ ip. How I can setup it with standard ...
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334 views

Working with VLANS

So I recently bought a HP ProCurve (managed) switch to start messing around with VLAN's in a lab environment at home. I have a basic VLAN configured, two machines connected to the VLAN on 192.168.1.10 ...
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708 views

Trying to chain 4 routers together.. possible?

I have comcast 50mb internet and 3 other routers that I am trying to connect throughout my duplex house. I am running 50 ft cat5 cables to them throughout the house and have them powered on and ...
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1answer
399 views

DMZ server with a public IP

So, I'd like to run a L4D2 game server on a VM. Partially for playing and partially for training. This is a simple residential network with a DSL modem and a E4200 router (for now). The router uses ...
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1k views

SSH (sftp) Server - DMZ or Port Forwarding?

I run an SSH server on my main machine. What are the security risks here, and advantages/disadvantages to port forwarding or a DMZ? Also, is there a way to tunnel an SSH server without making changes ...
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220 views

Enabling DMZ for opening ports

I earlier asked this question. There, my problem was that I port forwarded certain ports and turned off Windows Firewall, but still, online port checkers showed that those ports were closed. So, I ...
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5answers
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Why do I see router and not my real IIS?

I am trying to access IIS through web but unable to do so. Basically I have a router (which functions as router and modem) that is given by ISP and I have another router connected to the router given ...
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2answers
673 views

How is an Exchange server supposed to be seen on the perimeter network?

I have done a lot of research and I think I am on a good track, finally. I have been searching for days. I am not even sure if this is a good forum to ask this question, but all the other forums I ...
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617 views

Creating a DMZ with two routers

Hopefully it's okay to post semi-"I am learning" questions on this forum! Basically, I have two routers (both Netgear D834G's) and would like to setup a DMZ at home (merely for learning purposes and ...
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2k views

Allow access from outside network with dmz and iptables

I'm having a problem with my home network. So my setup is like this: In my Router (using Ubuntu desktop v11.04), I installed squid proxy as my transparent proxy. So I would like to use dyndns ...
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Why does my DD-WRT not accept SSH connections from my laptop?

So, here is my system: I have a 2Wire AT&T modem/router which I use for wireless and a Buffalo router flashed with DD-WRT which is physically attached to the 2Wire and set in the DMZ. I set ...
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External ping fails on Linksys router

When I try to ping my server from somewhere other than my local network, if finds the host, but returns as a lost packet. Screenshot from http://tools.pingdom.com: http://cl.ly/1I1c3K0z3Y1I2c3x3R3Z ...
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728 views

How can I make my livebox route to my external IP address for a computer in the DMZ?

I have a sagem livebox 2 (Fiber optic model), and have placed my computer in a DMZ. People from outside of my network can access my comp fine via its external dyndns.org address, yet when I try to ...
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454 views

Sharing folders on LAN with a DMZ computer on same tier (in DMZ)

This is my current setup, tiers in order; Modem Linksys wireless router D-Link wired router - wired desktop 1 - wireless laptop Wired DMZ desktop 2 Modem is connected to the linksys wireless ...
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2k views

Routing from the DMZ to the interior network only

I have a home network connected to Verizon's FIOS service. Verizon's ActionTec router is connected to the ONT via coax to establish the MOCA network. My DD-WRT router's WAN port is connected to one ...
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How come I can't ping my home computer?

I'm trying to set up a vpn into my home computer in order to access files from wherever. I have the home computer set up with a no-ip dynamic dns program so I can always connect, and have also tried ...
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What's DMZ used for in a home wireless router?

As far as I understand, by using DMZ you expose all of the host computer's ports to the Internet. What's that good for?
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Would you setup a DMZ at home?

From a security point of view, what are the benefits of going the whole hog of setting up a DMZ at home if you plan on running a low traffic (unpopular) website from there? There are a number of ...