Notices

Or in the world!? I don't get how it works. Just seems like I can access my computer from my phone (which would be great)

If you set your network up right, absolutely. I frequently use VNC viewer with an SSH tunnel to control my machines from the road.

The vnc viewer seems to work stable, but:
I can't find any zoom function in the vnc viewer. Is that right? So it would be completly useless for me because I cant read anything from my PC on the little screen of my n900.

It's not that hard to see your desktop, i use vnc all the time! if it is far too small then increasde the font size on your home pc

Most routers allow for easy port forwarding setings but this creates a virtual hole in your network. this is much easier to setup in my opinion.

anyone know of a good guide, ive never been able to understand how to use vlc over the internet

Safest bet would be for Freethinker to point you in the right direction as ssh seems the safest way.

a quicke google will point you in the right direction, the idea is to dial into your router 192.x.x.x in your browser, again google for the default. In the options there should be an option for port forwarding, some router actually have an option for vnc but another number would be safer... once set, go into vnc options, connection and then change the port number to that of the one you just created. You should now be able to connect to your home machine from outside the network.

Use IPchicken.com to easily find your external ip address and then on your phone the address you will want to use will look something like this, 111.x.x.x:1234 1234 being the new port you setup, note that a ":" is required to seperate the ip address and port number, you will also have to remember that the same kind of thing will have to be used internally.

As I say though a quick google will explain more, I found this.

http://nerdhow.wordpress.com/2008/03...orwarding-vnc/

thanks for the how to bro. will look in to it

Everything after you enter the password to your vnc server is unsecure (the windows session) so entering passwords via VNC isn't a good idea as long as you do not use a proper tunnel. Nowadays most routers are able to serve as VPN server, at least with custom firmware. The easiest way is to use a ssh-tunnel (that's also for windows).
You setup your home-machine's VNC to allow only localhost connections to be on the safe side, if you got problems with that try without but don't publish the port outside your private network. Ssh to your machine with forwarding the port from your home-machine to n900 with port +1 (you can use any port if it is not used yet but 5901 is just fine) as the default port is the same for the n900's 1st vnc-server (first VNC server gets 5900 second 5901 and so on).

syntax
ssh -L LocalPort:ServiceHost:ServicePort SSHID@SSHHost
for me this is
ssh -L 5901:myhost.dyndns.org:5900 chemist@myhost.dyndns.org

in ~/.ssh/config you may set this up as default so you don't need to type it everytime you connect to your home-machine.

Most routers are able to do dyndns.org keep alives for custom DNS entries for your IP (static and dynamic), it is a free service as long as you don't want special things.