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All floating IP's within skyhigh are accessible to all machines in the cloud (if permitted by the access groups). All users with an active project in skyhigh are able to log in to "skyhigh.hig.no", and trough that machine it is possible access all other machines. This machine also allows ssh-tunnels to tunnel other traffic trough SSH (f.ex RDP, HTTP(S) and similar).
In order to access your own virtual machine through the jumphost via SSH on a Linux machine , follow the following steps:

  1. Establish a SSH tunnel through the jumphost " skyhigh.hig.no " by executing the following command on your terminal:
    #ssh [NTNU-username]@skyhigh.hig.no 
    e.g: ssh danil@skyhigh.hig.no

    - use your NTNU user name in order to log into the jumphostin

  2. After having logged in into skyhigh.hig.no, start an SSH connection to your virtual machine in openstack by executing the following command:

    #ssh -i $HOME/.ssh/ntnu-openstack.pem ubuntu@vm-ip-address
    e.g: #ssh -i /home/danil/.ssh/my-private-key.pem user@172.16.1.140

    - use the private-key that you generated/uploaded when creating the virtual machine through the openstack webinterface.


If your virtual machine in openstack hosts a (running) web server running and you need to access the website running on that server, follow the following steps: 
Do not forget to enable (inside openstack) ingress traffic to the corresponding ports (e.g. 80, 443) at the corresponding security group. 

 

  1. Establish a SSH tunnel through the jumphost " skyhigh.hig.no " by executing the following command on your terminal: 
    # ssh -D [local-port][ntnu-username]@skyhigh.hig.no
    # ssh -D 9000 danil@skyhigh.hig.no

    use your NTNU user name in order to log into the jumphost
    - before establishing the SSH connection make sure that the selected port (e.g. 9000) is not currently being used by another process. The availability of a port on a Linux machine can be checked with the following command: #netstat -tulpn . If the port is listed in the output, this means that the port is already being used by a process. In that case you will need to select a different port. 

  2. Enable proxy configuration on your browser. The following steps apply only for Firefox:
    1. Go to Firefox Preferences -> Advanced -> Network -> Settings:




    2. Inside settings, select Manual proxy configurations and enter 127.0.0.1 plus followed by your chosen port (e.g. 9000). Do not forget to enable SOCKs v5. 
    3. Click OK to OK to accept the changes. 
    4. Browse to http://www.minip.no/ (with Firefox) to check whether you are connected to the skyhigh.hig.no networkno network. You should now be able to access  the website running on your web server through Firefox.   

 

PPTP VPN

If you would like to have IP connectivity between your machine and machines in skyhigh directly, without using SSH tunneling, there are a PPTP VPN service available. Please contact Eigil or Lars Erik for credentials to this service.