Hi Dirk, I am forwarding this to the mailing list since we've had a few people encounter this. As the note from ssh says, the key for the SSH server has changed. It will show an error since this is an obvious sign of DNS spoofing or other man-in-the-middle attacks. However I can assure you this is not the case here - we've simply changed server! To get rid of the error, you will need to edit the ~/.ssh/known_hosts file, and remove the offending entry. This will be different for different people: however it will tell you which line to remove:

Offending RSA key in /Users/Ekelschot/.ssh/known_hosts:1

Hopefully this is clear enough. Cheers, Dave

On 30 Oct 2014, at 10:24, Ekelschot, Dirk <d.ekelschot12@imperial.ac.uk> wrote:

Hi Dave,

I have tried to clone a fresh version of nektar using

git remote set-url origin git@gitlab.nektar.info:nektar/nektar.gi

But I get the following warning/error

git clone git@gitlab.nektar.info:nektar/nektar.git Cloning into 'nektar'... @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: POSSIBLE DNS SPOOFING DETECTED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ The RSA host key for gitlab.nektar.info has changed, and the key for the corresponding IP address 155.198.35.162 is unknown. This could either mean that DNS SPOOFING is happening or the IP address for the host and its host key have changed at the same time. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that a host key has just been changed. The fingerprint for the RSA key sent by the remote host is 64:14:1b:f0:53:9b:88:4d:12:5f:a8:a2:dc:a0:65:fe. Please contact your system administrator. Add correct host key in /Users/Ekelschot/.ssh/known_hosts to get rid of this message. Offending RSA key in /Users/Ekelschot/.ssh/known_hosts:1 RSA host key for gitlab.nektar.info has changed and you have requested strict checking. Host key verification failed. fatal: Could not read from remote repository.

Please make sure you have the correct access rights and the repository exists.

I added a new ssh key but I still get it. Do you know what I can do to prevent this?

Cheers,

Dirk

On 22 Oct 2014, at 16:59, David Moxey <d.moxey@imperial.ac.uk> wrote:

...

Dear all,

Imperial ICT have just informed me that the DNS records have been updated. Since DNS can take 24-48hrs to propagate, you may not be able to access gitlab using gitlab.nektar.info immediately. However, hopefully by Friday your local nameservers will have recognised the update.

Once that's happened, just issue:

git remote set-url origin git@gitlab.nektar.info:nektar/nektar.git

to change your repository settings again.

Thanks,

Dave

...

On 20 Oct 2014, at 17:10, David Moxey <d.moxey@imperial.ac.uk> wrote:

Dear all,

The new version of gitlab is now up and running. Unfortunately, Imperial ICT have been unresponsive in terms of updating our DNS records, so you will need to use the IP address temporarily until I can get this sorted out.

You can access the site at:

http://155.198.35.162/

A reminder that some project paths have changed. In particular you should update your existing Nektar++ repositories by issuing the command

git remote set-url origin git@155.198.35.162:nektar/nektar.git

Please let me know if you encounter any problems.

Thanks,

Dave

...

On 20 Oct 2014, at 10:17, David Moxey <d.moxey@imperial.ac.uk> wrote:

Dear all,

A reminder of today's maintenance. I will be taking gitlab offline in the next 15-20 minutes.

Thanks,

Dave

...

On 14 Oct 2014, at 14:46, David Moxey <d.moxey@imperial.ac.uk> wrote:

Dear all,

For those of you using gitlab to access the Nektar++ git repository, on Monday 20th October I will be performing a transfer to another machine. This is to both give us some new functionality, fix some bugs, and patch various security issues which are present in the current version.

Please note:

- the server will, in all likelihood, be offline for most of the day; - you can still use your local git repositories, and none of your local data/branches will be affected; - but you won't be able to push those changes back up to gitlab until the maintenance is complete.

Another important point is that currently, one clones the repository by doing:

git clone git@gitlab.nektar.info:nektar.git

This will be changing. The new address will be (but is not yet):

git clone git@gitlab.nektar.info:nektar/nektar.git

For existing repositories, there is no need to clone another version. You should run the command:

git remote set-url origin git@gitlab.nektar.info:nektar/nektar.git

and this will update the url.

I will be in touch again with another reminder and to let you know when the maintenance is complete.

Thanks,

Dave _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

-- David Moxey Research Associate Department of Aeronautics Imperial College London South Kensington Campus Room 363, Roderic Hill Building London, SW7 2AZ d.moxey@imperial.ac.uk www.imperial.ac.uk/people/d.moxey

_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

-- David Moxey Research Associate Department of Aeronautics Imperial College London South Kensington Campus Room 363, Roderic Hill Building London, SW7 2AZ d.moxey@imperial.ac.uk www.imperial.ac.uk/people/d.moxey

_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

-- David Moxey (Research Associate) d.moxey@imperial.ac.uk | www.imperial.ac.uk/people/d.moxey

Room 363, Department of Aeronautics, Imperial College London, London, SW7 2AZ, UK.

_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

-- David Moxey (Research Associate) d.moxey@imperial.ac.uk | www.imperial.ac.uk/people/d.moxey Room 363, Department of Aeronautics, Imperial College London, London, SW7 2AZ, UK.