Instance is blocking all external requests

[gmolki]

Description

When accessing via ssh to an instance, any request done to an external server is being blocked.

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Context

Instance setup

• Deployed from web
• Specs:
  • 2 cpu
  • Ubuntu OS

Steps to reproduce the issue

1. ssh into an instance
2. ping 8.8.8.8

[gmolki]

Update

@nesitor and @olethanh found out that the root of the issue was a wrong configuration in the Linux network configuration.

The team is currently working on a permanent fix.

(Temporary) Manual fix

Meanwhile, there's a manual fix that can be executed by the internal team:

The following command needs to be run on the CRN the instance is running

sudo nft add rule ip nat aleph-supervisor-nat jump aleph-vm-nat-19
sudo nft add rule ip filter aleph-supervisor-filter jump aleph-vm-filter-19

What can I do if my instance is affected with this issue?

In case there's any user affected, to help the team fix the issue it is necessary that you share the instance id of the affected Instance (e.g. 6d735e5ec04f6a1366560f702d38ba09d742c4e0ce340eae2cd168ed0b3acebe)