I have just created a new droplet from a snapshot of another droplet running Ubuntu 16.04, with the intention to upgrade the new droplet while keeping the old one running. The new droplet started up fine, and I can ssh into it, but outbound connections from the droplet are completely blocked, and I cannot even ping the default gateway, even after disabling ufw
. The IP address, gateway address, and the network mask have been confirmed to be correct (i.e. matching the values shown in the control panel). route -n
and ip -br a
output look correct. What else should I try?
Addendum: Clearly not all outbound packets are dropped, as my SSH connections are working. Also, a HTTP server running on the droplet is able to respond to access requests.
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Heya, bryanpkc
My initial approach will be to ensure that the network configuration files, such as
/etc/network/interfaces
or Netplan configuration files (if applicable), are correctly set up. For Ubuntu 16.04, the network interfaces file should be checked:Make sure the configuration matches what is provided in the control panel.
You can also check the system logs for any relevant error messages:
Hope that this helps!
I might be wrong but this could be due to the difference in how Ubuntu handles network from Ubuntu 16 to whatever new version you have now.
Hey @bryanpkc,
What I could suggest here as a first step is going over the steps listed in this troubleshooting doc:
There are troubleshooting steps for Ubuntu 16 as well.
If you are still seeing this issue, I could suggest trying to re-create the Droplet to see if this helps.
Also, both the re-creation and the troubleshooting doc do not help, it might be best to reach out to the DigitalOcean support team and provide them with as much information as possible:
Hope that helps!
- Bobby.