[Hosting HPC in Azure] 2.6 -- Compute Node

Block the Computing Node’s Internet Access

Going through this, which tries to block internet access in the compute node somehow will make CycleCloud Wizard not able to launch the compute node correctly. This is because we need to download packages using apt which requires access to internet in the compute node. So for now, avoid this step.

1. Azure Portal -> Route Table -> Create

2. Route Table -> Routes -> Add

   This drops all the outbound internet access:

   Form	How to
   Route name	name
   Destination type	IP Address
   Destination IP address	0.0.0.0/0
   Next hop type	None

3. Virtual Network -> Subnet -> Route Table, select the route table we just created.

Compute node shouldn’t have access to internet at all, while login node still have access to it.