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).

learn more… | top users | synonyms

0
votes
0answers
245 views

Port forwarding with Verizon FIOS and ActionTec router (hard)

I just spent over an hour with Verizon and ActionTec support, trying to open ports to one of my local machines. IMHO, the Verizon guy was very helpful but not technically deep enough to figure it out, ...
0
votes
1answer
987 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 ...
1
vote
1answer
27 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) | | ...
0
votes
1answer
163 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 ...
0
votes
0answers
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 ...
4
votes
2answers
2k 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 ...
1
vote
1answer
135 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 ...
1
vote
0answers
407 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 ...
1
vote
1answer
3k 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 ...
2
votes
0answers
714 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 ...
0
votes
0answers
257 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 ...
0
votes
1answer
721 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. ...
0
votes
1answer
2k 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 ...
2
votes
1answer
382 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 ...
1
vote
3answers
1k 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 ...
2
votes
1answer
523 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 ...
0
votes
1answer
2k 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 ...
0
votes
1answer
278 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 ...
-1
votes
5answers
2k views

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 ...
2
votes
2answers
793 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 ...
0
votes
1answer
793 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 ...
3
votes
1answer
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 ...
1
vote
1answer
3k views

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 ...
4
votes
2answers
5k views

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 ...
0
votes
1answer
845 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 ...
0
votes
1answer
536 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 ...
1
vote
2answers
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 ...
3
votes
3answers
4k views

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 ...
11
votes
3answers
40k views

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?
7
votes
4answers
3k views

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 ...