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Questions tagged [dmz]

In computer security, a DMZ, or demilitarized zone is a physical or logical subnetwork that contains and exposes an organization's external services to a larger untrusted network, usually the Internet. The term is normally referred to as a DMZ by information technology professionals. It is sometimes referred to as a perimeter network.

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access git repository from server in DMZ, accessed through VPN tunnel

My laptop mylaptop has access to a git repo mygitrepo.com. From mylaptop I can access a web server in a DMZ dmzserver through a VPN tunnel. Of course, dmzserver cannot directly access mygitrepo.com. ...
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tunnel port 8080 over jumpserver using ssh - socks5 proxy?

I have this setup: LocalPC - Jumpserver - Webserver with page only accessible on this machine via localhost:8080 LocalPC and Webserver are not connected - Jumpserver has to be used. Jumpserver ...
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Best practices for LDAP and DMZ

We are in the process of setting up a DMZ and I have stumbled into the question of how to handle machines that need to have ports exposed to the internet, but at the same time be able to make LDAP ...
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OpenVPN without NAT or DHCP

I am trying to setup an OpenVPN server similar to LiquidVPN.com. WIth their VPN server when a client connects it receives the public IP address of the server. All network traffic to the public IP is ...
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2k views

Accessing files located on the file server from the DMZ

I need to set in place a new ASP.NET MVC solution where authenticated users can download files (originally located on the internal network). For security reasons, accessing internal network from the ...
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2k views

AWS: Reverse Proxy to access private instance

I am looking for a best practice to set up a reverse proxy providing access to a private instance (for example a web server). I thought it would be possible to do this: create a VPC with one private ...
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4answers
13k views

Best Method to test Opened Ports [closed]

We have a requirment where in we have to test 500+ Port opening rules. So requires a suggest on below points. Which is the best tool to test the connectivity of the ports. Telnet will be sufficient ...
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84 views

Do I need routers in a LAN with 2-firewall DMZ solution? [closed]

I have a LAN that will host an EXTRANET site with 5 servers, and 2 exchange edge servers. The LAN will service an office in a 5 story building with about 100-200 users on each floor. Each floor will ...
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TLS check failing because of Cert for exchange

I have an on-premise exchange 2016 environment. There is an internal exchange server (on the domain) and a server in the DMZ that is not on the domain that is running the Edge Transport service. ...
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1answer
740 views

CRM 2013 Internet Facing Deployment (IFD)

For previous CRM IFDs I have placed the CRM Front End server in the DMZ along with an ADFS Proxy and allowed access from the Domain Controller to the CRM Front End through the firewall. This is ...
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4k views

Public IP or Private IP for the DMZ area

Lets say I have three networks in my topology : Internal network, DMZ, Internet. And my DMZ Area contains a lot of servers, but lets say in this example that it contains only a DNS Server and a Web ...
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206 views

Dedicated IP for webserver through pfsense and a draytek 2860

We have a leased line which has 8 public IP addresses. This connects to our Draytek 2860 router. From here we have an internal network which we use for our office computers and another network for ...
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Run windows services with different network credentials

I have server (W2016) in DMZ, not in domain. And I need start windows services (Dynamics NAV third party application) under local account but with different network credential (domain account) for SQL ...
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OpenSSH with OATH from WAN and without from LAN

I have placed a simple ARM based Debian machine in a DMZ and I would like to set up an SSH proxy into my network. To do this, I would like to require anybody connecting from the WAN to provide a key ...
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624 views

Cisco ASA 5505 - Access to DMZ with one public IP

I am trying to configure my Cisco ASA 5505 firewall to allow access from the internet to DMZ web and mail server. I'm new to the Cisco world so excuse me if this is a newbie question. I know that this ...
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How to setup a web ERP server that needs to be accessible outside the local network?

We have a network of servers and computers on an AD Domain. One of the servers runs a PHP based management system (ERP) and we want to have it accessible on the internet. When I say internet I don't ...
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423 views

Access Samba server in light “DMZ” using two Fritzbox 7390

I'm using a router cascade out of two Fritzbox 7390 to implement a light version of a DMZ. Every Fritzbox has its own subnet. Fritzbox 1 (192.168.178.0/24) is connected to the Internet Service ...
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How to configure two firewalls for two WANs and one LAN

I have two WANs with static IPs: DSL (PPPoA) Fibre (Ethernet through fibre media converter) So far I was using one firewall Vigor2830Vn to handle traffic from both WAN ports. But I need to be able ...
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DMZ on Hyper-V using VLAN with fortigate

One of my customers would like to publish his HR Portal on the internet, It is a IIS website, running on a virtual machine in a Hyper-V environment. This company has a single host, with 2 NIC paired, ...
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Remote Desktop Jump Using Different Licence Servers

Quick overview of system: I have a business (IT) domain and a process control network (PCN) domain joined via a pair of firewalls and a DMZ (DMZ servers part of PCN domain also). PCN domain servers ...
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How to forward https request to internet

I have one web server need access internet web service such as https://example.com/cgi-bin/* and this server deployed in intranet and also have one DMZ server can access internet directly. So, how to ...
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694 views

Kubernetes - Best Practices for Physical Network Segmentation

Based on the following design constraint, does anyone have any best practices or recommendations regarding how to deploy Kubernetes across multiple network zones? What is the most common and accepted ...
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Active Directory in a DMZ

What is the best way to manage user accounts for Windows servers in a DMZ? We are expanding our web presence and adding several IIS servers to our DMZ. I would prefer not to manage a bunch of local ...
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346 views

Pysical Server 2 NICS LAN and DMZ

I'm after some advice. I have a Physical server with 2 on-board NICs. Currently only one is used for LAN. If I wanted to setup Hyper-V and use the second NIC for DMZ stuff, is that possible? I ...
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Virtual host on LAN - VMs on DMZ, separate NICs - is this a bad idea?

Just kicking this idea around, and wanted to see if you'll be so kind as to point out the problems I don't see. If I set up this new HyperV host as a normal domain member, the benefits are obvious. ...
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Redundant web servers - 1 public addres

I'd like to host redundant internet accessible (NATed) web servers behind a f/w on the same standard ports. If I only have 1 publicly available address do i have to use a reverse proxy or load ...
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Cisco Asa 5506 Public IP's in DMZ

I am running an ASA 5506 (9.6). I have two IP Ranges 1.35.133.88/29 and 1.35.135.176/29. I have setup in my router the routes. I have an outside interface with 1.35.133.90. I have an DMZ interface ...
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476 views

pfSense DMZ VMware and Ubuntu 16.04.1 LTS

In a VMware environment I am having connectivity issues (no ping) between the gateway (pfSense DMZ) and Ubuntu server 16.04.1 LTS. Pfsense is working fine from the LAN subnet 192.168.1.0/24 but not ...
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4answers
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ESX servers in a DMZ

I have two ESX 3.5 servers in a DMZ. I can access these servers on any port from my LAN via a VPN. Servers in the DMZ are unable to initiate connections back to the LAN, for obvious reasons. I have a ...
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1answer
10k views

Mikrotik, block internet for specific ip but allow traffic for dmz or private network

I have Mikrotik RBcAP2n with one lan i one wlan. Wlan WiFi is for clients and Lan is for ADSL. Between MKRB and ADSL I have one server on the same network as MKRB and ADSL. Server have apache web site ...
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The remote procedure call failed during applying Remote Access Setup Wizard Settings

I have a DirectAccess server with Windows Server 2012 R2 in the DMZ and other services such as Active Directory (located on a subdomain) and the PKI infrastructure in the internal area. And I get ...
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Should a webserver in the DMZ be allowed to access MSSQL in the LAN?

This should be a very basic question and I tried to research it and couldn't find a solid answer. Say you have a web server in the DMZ and a MSSQL server in the LAN. IMO, and what I've always ...
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Issues with DMZ on Fortigate 90D, second router can't reach internet

I am having issues setting up a DMZ port on my Firewall (hardware router). I am also assuming this belongs in Super User, as it seems like a basic DMZ setup. Here is the setup: I have a Fortigate 90D ...
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Distinction between an extranet and a DMZ [closed]

I've been reading about intranets, extranets, DMZs and VPNs now, and I'd need some clarifications related to extranets and DMZs. I understand that they are different types of concepts - extranet ...
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Accessing internally stored documents via hyperlinks in Websites on a DMZ server

We have a vendor-provided application running internally (LAN) on a Windows/MS-SQL 2012 server, providing access via IIS on the same box. The application is able to store attached documents - these ...
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Setup DMZ in Pfsense with virtual servers, physical Pfsense server

I am looking for some networking tips on how to set up a DMZ in Pfsense and place some virtual servers in that DMZ. Right now my network looks like: Uverse (Static IPs) -> Pfsense -> WAN -> (Virtual ...
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604 views

I can't access my home server using my public IP from local network [closed]

I've seen this question I can't access my public IP from local network but I think it's different I have a Vodafone Spain router from Huawei, model HG253sV2. In my local network I setup a HTTP server....
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Get access to services outside VPN while tunneling OpenVPN Access Server

I have two VPS with one on which I installed OpenVPN Access Server and vpn client on the second one. When I connect the client to the OpenVPN AS, I can't get access to apache which is installed on the ...
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628 views

Hyper-V DMZ environment

Im facing some problems trying to create a DMZ virtual machine in Hyper-v. Firstly, i want to create a DMZ so the company's smartphones can be managed remotely.We have an ESET ERA server installed, ...
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Why is my ISP box talking to my DMZ host?

I have a setup where an internet connection is available via ISP box, which has a DMZ feature (one of the hosts can be exposed to Internet). The general setup is the following Internet - PublicIP - ...
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Small business network vlans and hyper-v configuration

We are a small business and have been successfully running one Hyper-V 2012 R2 vmhost with many Windows Server 2012 VMS that includes a DC, Web Server, CRM Server and SQL Server for a couple of years. ...
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1answer
4k views

Disable EdgeRouter Lite GUI on DMZ interface

I'm using the Ubiquiti EdgeRouter in a SOHO network. I've configured it using the "WAN+2LAN2" wizard, without bridging the LAN ports. This sets up the three port router with eth0 assigned to the WAN,...
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1answer
240 views

Router configuration, subnetting, DMZ

I'd like to use a subnet of our public IP addresses in the DMZ like shown in this picture: Does my provider have to add a routing entry on the first router for the DMZ-net? Can I assign the whole 193....
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2answers
261 views

How to redesign our network?

We currently have three networks, X.X.163.1, X.X.93.1 and 192.168.1.1. Today's setup is like this: We now have PPT VPN from internet to the X.X.163.1-network, but really need to access the files ...
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1answer
109 views

api connecting from WAN to LAN?

I'm not an application developer - Ill start off with that caveat. In Brief; our development team have asked for me to open a series of ports from WAN to LAN completely bypassing our DMZ. They say ...
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Test WAN access to our local area network after opening the DMZ

On our router we have recently opened a port. We want to test whether those outside our local area network are able to obtain access. How can we do this? Unfortunately, we do not have a connection ...
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1answer
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Windows RODC/DMZ connection to trusted AD issue

I have a really strange scenario...We have a server within a DMZ, which uses an RODC (Read-Only Domain Controller) for user authentication. The users are in a trusted 3rd domain, something like ...
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1answer
756 views

How to make Docker resolve DMZ host?

Imagine I have this setup: An application server Private IP: 1.0.0.1; Private hostname: machine1.internal.domain Public IP : 2.0.0.1; Public hostname : machine1.example.com A ...
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1answer
5k views

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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1k views

adfs proxy and dmz configuration

I am trying to setup an ADFS proxy in a DMZ as per Microsoft's best practices, but do not really understand how this is done practically. The basic premise is that a server is placed in the DMZ and ...