Hosting your own mail and web

Need help setting up hosting

[dmowen]

Hi,

I have an ADSL connection that has a static IP assigned to my modem/router. I have built an exchange server. I have a domain name that is hosted, now I wish to host my e-mail and web site. My modem router is in NAT I have changed details with the company that is hosting my domain name such as host and mx records. When I telnet to the public address of my mail it will not go through, I have created port redirections for ports 80, 25, 110 ans 443. Can anyone help me on this?

Thanks in advance
Darrin

[txbakers]

Check that your IP address is good. Also check to see that the ports are redirecting to a static IP behind your router.

It takes a day or two for the zone file changes to take effect across the internet, so that might be an issue as well.

[bakedjake]

Are you testing from behind your router? That can be problematic. :) Some NAT implementations will not function both ways.

Have someone on the outside help you test.

[bcc1234]

Before you go through all the trouble, check that your ip address is not listed in the dial-up range.
Most ISPs who offer DSL services, use the netblocks that used to be allocated for dial-up modem access, so your mail might end up being rejected by many mail servers out there.

[Stretch]

I thought Telnet was port 23?

[mack]

As bakedjake said it can be very troublesome trying to use real world addresses from within your netork. Think of it as "if you where inside your house could you post a postcard to yourself" chances are you couldent, Try making a connection from outside your lan.

Mack.

[dmowen]

Hi,

I appreciate all your feedback, all the steps have been taken. the MX record was changed 5 days ago, I have since contacted the ISP and they too can not get to port 25 on my public IP address. Stretch Telnet is port 23 but you can translate port 23 to anyother port by redirecting it. Apparently there is no filtering on any ports with my connection, so it is back with the ISP escalated so they say. Lets see what comes of it.

Darrin

[waitman]

Hello

You did try

telnet localhost 25

on the server, right?

also from another machine inside your network...

take care,

[mole]

You can eliminate DNS as a problem by doing something like:

ping mx.yourdomain.com

If you get a reply, then the DNS stuff is set up OK.
You should definitely be able to do this from a machine on your LAN.

If that's OK then look again at how your router / firewall is set up. You may need to:
(1) open the appropriate port on the firewall
(2) make sure NAT translates your public address to your private LAN
(3) make sure your PAT is set to map the appropriate public port (say, 25) to the same port on your local server.