I have signed up and setup every thing today only. I have not achieved my goal.
MY set up. ADSL MODEM (UTSTARCOM 3002 - g1) ---> 5 port switch ---> One PC with 2 Ethernet cards. In my PC i have installed an emulator software for a server which will accept only telnet or SSH connection alone.
Everything works fine in LAN. Telnet 192.168.1.39 , SSH 192.168.1.39 everything is successful. even FTP works fine. I signed up with you and got the Hostname, which made me feel very happy :). Thanks for that. Now my goal is to telnet to this server from outside network.
Now when i try to do
I know im missing something. I need to change some setting so that if any telnet request comes then UTSTARCOM should be blindly send it to the ipaddres 192.168.1.39. Please advice me. If there is any setting to get this done.
First of all, the UTStarcom WA3002-g1 is not a modem, but a router, with a NAT function. That means that you have to forward the relevant ports from the router to your server (192.168.1.39).
For general guidance on the entire process of getting up and running, consider reading the following:
And, more specifically, you may want to read the following guide on PortForward.com:
Remember to test from outside your network. Your router may not map the ports for loopback connections (connections to the public IP originating from local devices), and consequently using the hostname and/or public IP from within your LAN may not work as expected.
By the way, I really recommend against using telnet to access your server. It is a horribly insecure protocol. FTP is not only insecure, but quite quarrelsome behind a NAT router. You can do everything you wish with SSH. Remote terminal access, as with telnet, and remote file access (SFTP) -- only a lot more secure.
To answer the follow-up question:
Many thanks for your reply. I have read all the three guides, and followed the steps mentioned in there already. As per your suggestion, I removed port 23 and port 21 for telnet and FTP. Now for port 22. I'm verifying in open port tool, it says the port is open. But whenever I try to connect via SSH...it says "connection timed out". And I'm not getting any request on my server.
answered Feb 15 '10 at 08:52 PM
So, if you run the following commands on your SSH server, what do you get:
answered Feb 15 '10 at 01:58 PM
Cry Havok ♦
I have the same problem. Port is listed as open, yet cannot connect from outside the network. Really frustrating it is.
answered Feb 15 '10 at 06:33 AM