Maybe I made an assumption that is not currently in place.
This linux server with an external IP address on the internet. Does it have a second interface on your internal network 10.0.0.0/16? If it does then IP tables is a snap.
For IP forwarding of port 80/443 on the external interface to 10.0.0.99 internally:
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 80 -j DNAT --to 10.0.0.99:80
iptables -A INPUT -p tcp -m state --state NEW --dport 80 -i eth0 -j ACCEPT
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 443 -j DNAT --to 10.0.0.99:80
iptables -A INPUT -p tcp -m state --state NEW --dport 443 -i eth0 -j ACCEPT
Apache reverse proxy is a little harder to setup. But it also relies on your server sitting between the two networks.
If your server doesn't sit between the two networks, I have heard of a way to use openssh as a vpn tunnel connection. This would effectively allow you to tunnel though your corporate firewall that allows ssh to pass for maintenance of your dmz machines. Understand that this will bypass any controls your infrastructure people put in place. I don't think it is a good idea to do this, but it probably would work.
-geo
I put the new drive in the SNAP Server (both drives need to be configured as “Master” IDE drives) and I powered it on. The SNAP Server wouldn’t boot! It would enter reset mode (the power and disk lights would blink in tandem) and go no further. I cold not even communicate with the server. So I called Adaptec tech support (Adaptec purchased SNAP.) and they told me there was no way to do what I wanted to do and that the server needed to be returned for repair! How untrue! What I discovered from research is that the SNAP Server will boot off the mirrored drive (bottom drive) but it will not rebuild a new drive from there! The SNAP Server must boot and run the operating system from the master drive (disk zero or the top drive) in order to rebuild a mirror.
I put the new drive in the bottom slot and moved the good, original bottom drive to the top slot. I powered on the SNAP Server. Only then did I eliminate the blinking light, reset mode. I accessed the SNAP Server via the web interface and looked at the Disk Status page. It showed that I had 2 drives! My boot drive as logical disk ten thousand and the new blank disk was logical disk 10010.
Once I had the backup mirror drive (the one with all my data) on top (it was now drive 10000), the Snap booted up. Now it was time to rebuild the mirror. Of course, disk status showed a cracked mirror. I couldn’t rebuild the mirror because it saw the new drive as a separate drive and was still looking for the rest of the mirror. So I had to break the mirror by making both drives individual drives, then re-establish the mirror. This started the rebuild with no loss of data.
The exact steps are below.
1. Put good drive in top slot of SNAP.
2. Put new drive in bottom drive of SNAP. Turn on SNAP.
3. Reformat the new drive by executing the following command from the ipaddress/ config/debug web page. (For example [http://192.168.1.1/config/debug]) Note: DD is the number of the problem hard disk. Co de format 100DD /reinit In my case it was co de format 10010 /reinit (After reboot, this configures 100DD as a SINGLE drive and FORMATS it.)
4. Reboot the Snap server.
5. Now break the mirror with this command co de config individual ten thousand 10010
6. Reboot.
7. After the orphaned disk is formatted and the drives are converted to individual drives, execute this command from the ipaddress/config/debug page. (For example [http://192.168.1.1/config/debug]) co de config mirror 100SS 100DD SS is the source disk, DD is the destination disk. In my case the command was co de config mirror ten thousand 10010 (This step mirrors the drive with data to the drive without data.)
5. Reboot the Snap. If everything works according to plan, the View Disk Status page should report “Rebuilding backup disk” when it comes back online.
Once I went through this entire process, the mirror was re-established and all the data was rebuilt. The whole 250GB drive took around 5-6 hours to rebuild. But now I’ve a SNAP Server 2200 with a new drive. The server is mirrored so I can be rest assured that my data is safe.
Dean Novosat writes about health and nutrition. He has 2 websites http://www.DairyTruth.com and http://www.FastingLife.com
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