5

What are the methods of separating network spaces in a LAN?

view full story
linux-howto

http://serverfault.com – Please detail me the methods. My thoughts: put the servers in separate (sub)networks the servers are forced to go through the firewall but no NAT is required assign more IP addresses to the internal interface of the server choosing gateway addresses from the clients and servers IP address ranges split DNS Netfilter/{iptables, ipset} could be heavily involved, I'm talking about Linux servers. See for example: Destination NAT Onto the Same Network from internal clients Please do not explain what is NAT or DNS. This is a theoretical question, but my poor English knowledge prevent me to (HowTos)

dayu's picture
Submitted by dayu on 11/03/2012 – Made popular on 11/03/2012

Stories similar to What are the methods of separating network spaces in a LAN?

I have a need to be able to identify which public DNS servers machines in internal networks are using for queries. To clarify, I do not want IPs or names of internal DNS servers or network devices. I need a scriptable way to identify what public servers they are calling to when queries are forwarded.

I have an extensive network of servers all currently hosted on AWS EC2.

For reasons of cost I plan to gradually migrate to dedicated servers where possible.

So: How can I best combine AWS and non-AWS servers in my network?

Currently we have a few servers behind a router/gateway, which is in bridge mode, so the servers have directly assigned WAN IPs with no NATting performed.

I have two AD servers: 192.168.1.1 and 192.168.1.2. One is a Windows Server 2008 (non-R2) and the other is R2. Both are AD servers for our local network. It's a simple network, 30 clients.

Now I need to replace the hardware of these two servers for newer, most powerful ones. But the server NAMES and IP ADDRESSES must be the same after the replacement.

I'm setting up a VPC cluster for my collaborative todo list application www.getdoneapp.com.

To have my servers on the private network I need a NAT server so my servers on the private network can connect to the internet to receive updates and what not.

The NAT server will consume an elastic IP address, so I'm wondering if I can just have that NAT server run nginx to direct traffic to my internal

I have two Linodes in the same data center. I want to copy files from one to the other each night or on demand (for about the next month, until this project is finished). So I'm thinking about using rsync.

My question is how do I set up the two Linode servers to communicate via private IP addresses securely?

I have a hub-and-spoke network with a central office with the servers at one location, and several smaller offices (with no servers) at other locations.

Each location has a sonicwall firewall device.

I am not quite sure if the title is correct and if that is what I need to do, but here's my question.

I have the following network structure (sorry, not enough reputation to post images): network diagram

I need the clients to be able to connect to the windows shares of the servers on the left.

I have some servers in the DMZ that receive public traffic from an external (public) IPv4 address. This is translated at our gateway to a 172.x.x.x address.

All external clients are using local accounts and are chrooted.