o_b_c
asked on
How did I do it???
I have a server with 2 NICs, one connected to a firewall and the Internet and one connected to my LAN. Both my internal and external users can access the server. Now I have a second server that I need to setup the some way, I think I have mirrored the settings but it won’t work. As soon as I mirror the settings internal users loses access to the server.
Here is how my current server is set up:
NIC1:
IP: LAN.x.x.10
GW: Blank
DNS: LAN.x.x.2
NIC2:
IP: WAN.x.x.10
GW: WAN.x.x.1
DNS: WAN.x.x.2
• IP Binding is set with NIC#1 as primary.
• Routing and remote access is not configured on either server.
• My firewall does not have routes specific to the currently functional server.
• My LAN DNS points users to the LAN IP address. I do not have a public DNS entry.
I cannot find anything that would cause one to work but not the other, do you have any ideas?
Here is how my current server is set up:
NIC1:
IP: LAN.x.x.10
GW: Blank
DNS: LAN.x.x.2
NIC2:
IP: WAN.x.x.10
GW: WAN.x.x.1
DNS: WAN.x.x.2
• IP Binding is set with NIC#1 as primary.
• Routing and remote access is not configured on either server.
• My firewall does not have routes specific to the currently functional server.
• My LAN DNS points users to the LAN IP address. I do not have a public DNS entry.
I cannot find anything that would cause one to work but not the other, do you have any ideas?
couple things...
- please describe the question/problem in the title, not just 'how do I do it?'
also,
- why not setup port forwarding through the firewall instead of having 2 nics and exposing the system?
what is the server doing? file server, web server? (why/how are the users accessing it)
- please describe the question/problem in the title, not just 'how do I do it?'
also,
- why not setup port forwarding through the firewall instead of having 2 nics and exposing the system?
what is the server doing? file server, web server? (why/how are the users accessing it)
ASKER
Torvir, Great question. So when my internal users can access the server it is set up like this:
NIC1:
IP: LAN.x.x.10
GW: LAN.x.x.1
DNS: LAN.x.x.2
NIC2: Disabled interface
They lose access to it when I remove the GW on NIC1 and enable NIC2.
NIC1:
IP: LAN.x.x.10
GW: LAN.x.x.1
DNS: LAN.x.x.2
NIC2: Disabled interface
They lose access to it when I remove the GW on NIC1 and enable NIC2.
ASKER
JammyPak, A better title is a good point, only I couldn't think of a simple way of summarizing my issue. Do you have a suggestion? Along that some string, do you think this question would be better listed in a different zone?
The server that is functioning is an Exchange server with OWA, the other server is an application server.
I could use port forwarding, I hadn't really considered that option I would need to update my DNS/MX records, inform my virus scan service, and reconfigure my firewall, it could be a bit of work and I’m reluctant to screw with my Exchange server that is working so well. Also I'm not quite sure how the client software for the web application will handle it since I would have two different servers accessing HTTPS port 443. How would the firewall distinguish between the 2?
The server that is functioning is an Exchange server with OWA, the other server is an application server.
I could use port forwarding, I hadn't really considered that option I would need to update my DNS/MX records, inform my virus scan service, and reconfigure my firewall, it could be a bit of work and I’m reluctant to screw with my Exchange server that is working so well. Also I'm not quite sure how the client software for the web application will handle it since I would have two different servers accessing HTTPS port 443. How would the firewall distinguish between the 2?
ASKER
I was just rereading my post and I now realize that it may be a little confusing.
My current Exchange Server has the following Network configuration and is working just fine:
NIC1:
IP: LAN.x.x.10
GW: Blank
DNS: LAN.x.x.2
NIC2:
IP: WAN.x.x.10
GW: WAN.x.x.1
DNS: WAN.x.x.2
My new web application server is only accessible to the internal users when it is set up like this:
NIC1:
IP: LAN.x.x.20
GW: LAN.x.x.1
DNS: LAN.x.x.2
NIC2: Disabled interface
And when I mirror the settings of my Exchange server to try and get the new server to work like my Exchange server does, it breaks and no one can access it. The network config when it is broken looks like this:
NIC1:
IP: LAN.x.x.20
GW: Blank
DNS: LAN.x.x.2
NIC2:
IP: WAN.x.x.20
GW: WAN.x.x.1
DNS: WAN.x.x.2
My current Exchange Server has the following Network configuration and is working just fine:
NIC1:
IP: LAN.x.x.10
GW: Blank
DNS: LAN.x.x.2
NIC2:
IP: WAN.x.x.10
GW: WAN.x.x.1
DNS: WAN.x.x.2
My new web application server is only accessible to the internal users when it is set up like this:
NIC1:
IP: LAN.x.x.20
GW: LAN.x.x.1
DNS: LAN.x.x.2
NIC2: Disabled interface
And when I mirror the settings of my Exchange server to try and get the new server to work like my Exchange server does, it breaks and no one can access it. The network config when it is broken looks like this:
NIC1:
IP: LAN.x.x.20
GW: Blank
DNS: LAN.x.x.2
NIC2:
IP: WAN.x.x.20
GW: WAN.x.x.1
DNS: WAN.x.x.2
ASKER
JammyPak, Although port forwarding might be an option, it seems that it should work in the configuration that I'm currently trying to use thought too. Right. or am I confused???
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ASKER
Oh, I think you might be on to something. I recall doing this a couple of years ago, let me test it out and I'll report back.
ASKER
Thank you, it worked!!!
How is the servers IP-parameters configured when the users can reach it? And what do you change when they lose contact with it?