Can't resolve github.com on DevCloud instance

[JohnWestlund]

Just got logged into an instance and trying to download the samples, but can't resolve github.com:

u157922@login-2:~$ git clone https://github.com/oneapi-src/oneAPI-samples.git
Cloning into 'oneAPI-samples'...
fatal: unable to access 'https://github.com/oneapi-src/oneAPI-samples.git/': Could not resolve host: github.com

[User01 · Accepted solution]

I also observed that sometime over the last month or two, connectivity from login-2 has become limited in surprising ways. One workaround is to make an interactive connection to a compute node with "qsub -I" and then run the git clone from there. However, that is not an efficient use of the compute node resources and would seem to be a better fit for a login node or a dedicated data transfer node/queue. It would be great to get some insight from the DevCloud administration on the new login-2 connectivity limitations, why they were put in place, and what users should be doing instead.

[Rahila_T_Intel]

Hi,

Thank you for posting in Intel Communities.

DevCloud does not allow external website access from the login node. External access is allowed only from compute nodes.

Login node uses a lightweight general-purpose processor. Login nodes should not be used for development or execution of programs. It is an interface node that helps to connect or submit jobs to compute nodes.

 You can use wget/git clone/etc. on compute nodes only. You cannot use them on login node. However, the downloaded files would be available in the cloud, so you can access them in login node and compute node as well.

From the above diagram, we could see that HTTPS cannot be accessed via login node.

If this clarifies your query, make sure to accept this as a solution. This would help others with similar query.

Thanks

[JohnWestlund]

Thanks Rahila. That makes sense -- can the documentation be updated to make it clear that you need to be on a compute instance before you can move forward. Right now it says the following which makes it seem like you should be able to start running git command immediately:

Download the Intel AI Analytics Toolkit Samples

1. Connect to the Intel DevCloud:

   ssh devcloud

   Bash

   Copy
2. Download the samples:

   git clone https://github.com/oneapi-src/oneAPI-samples.git

   Bash

   Copy

[Rahila_T_Intel]

Hi,

Thank you for your feedback. We have provided your feedback to the relevant team. 

If your issue is resolved, make sure to accept the corresponding post as a solution. This would help others with similar issue. 

Please let me know if we can go ahead and close this case?

Thanks

[Rahila_T_Intel]

Hi,

Glad to know that your query is clarified.

This thread will no longer be monitored by Intel. If you need further assistance, please post a new question. 

Thanks