ssh question remote location

[Eremis]

Hi everyone,

I have a quick ssh question...

I live in a college dorm but have a desktop at home with ubuntu + ssh server...
When I visit home and I want to connect to my desktop I just type:

ssh 192.168.1.95

192.168.1.95 --> my desktop on my dsl wireless router...

So I was wondering if I want to connect from my college dorm, what ip whould I have to connect to?

While being home I tried typing:

ssh myDesktopInternetIP

myDesktopInternetIP --> Ip that I got from "whatismyip.com"

but doing this resulted in:

ssh: connect to host myDesktopInternetIP port 22: Connection refused

So how would I connect to my desktop from remote location?

[spiky001]

I take it that at collage you are on there network, if so I doubt if they forward the ssh port22, the other thing is if they do forward the ssh port it might not be on port 22.
You would have to ask the IT department about it.
Sorry not much help.

[frenzy_usa]

There are three things you'll need to do for this to work.

1) Get a free host name from dyndns.com or zoneedit.com. There are others but never checked into any of them.

2) Setup port forwarding on the router at your house. The steps to do this vary depending on who made your router. You also might have to change settings on the cable/dsl modem supplied by your ISP.

4) Install a dynamic dns client to automatically update the ip address associated with your selected host name.

Once the above steps are completed, you can connect to your server at home from any where there is an Internet connection using the host name from step 1 instead of trying to remember a string of numbers.

[Eremis]

Solved a few of my own questions, just look at post below....

[Eremis]

I found where "port forwarding on my router is, I just dont know what to fill in the blanks (for ssh), I attached a picture...

[frenzy_usa]

Thanks for the screen shot. It's a big help.

Service name: Enter what ever helps you to remember why you setup this port forwarding rule
Global Port Range: The port you want to connect to from the internet
Base Host Port: The port that your ssh server is listening to
Protocal: Set to TCP

[HiFiJive]

What is your internet service provider? Do you have admin access to the router?

Port forwarding basically tells your router what ip & port to forward inbound traffic.

[Eremis]

so for the range can i put 22-22 (since ssh in on 22)?

[Eremis]

so for ssh it should be like this:
Service name: my ssh server
Global Port Range: 22 - 22
Base Host Port: 22
Protocal: TCP

right?

I know its recommended to change the default 22 to something else...
Just one more question, will DynDNS interfere with security/online privacy, since I have a static name....?

[Eremis]

When I try to enable it it asks me a new question (attachment)
If I want dynamic or host...

When I choose host it asks me for host ip adress...
So I need dynamic?