Question

Solution to can't SSH to NEW Snapshot droplet (no Internet)

Posted February 21, 2020 160 views
NetworkingBackups

If you are facing the snapshot restoring and No SSH problem like me, Its easy to fix.

Here is the problem. I took a snapshot of my old server and then restored it to new server. Now I can’t SSH to it, or just ping to any external site in that server (ping google.com doesn’t work). However, everything is working in the digital ocean console side.

I spent 5 long hours to find this solution. I hope to help you too!!!

Solution:

  1. Open DigitalOcean console and login to your server.
    (If the previous password doesn’t work, just reset/forgot password it)

  2. type ifconfig and click enter.

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:420 errors:0 dropped:0 overruns:0 frame:0
          TX packets:420 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:107265 (107.2 KB)  TX bytes:107265 (107.2 KB)
  1. If you see just one ‘lo’ device, it means you don’t have internet access. To fix this, type ifconfig -a
ens3      Link encap:Ethernet  HWaddr c2:eb:73:62:d7:5d  
               .......and so on.

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:426 errors:0 dropped:0 overruns:0 frame:0
          TX packets:426 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:109321 (109.3 KB)  TX bytes:109321 (109.3 KB)
  1. Now you need to add this correct ens3 to the network interface. To do that, type cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

source /etc/network/interfaces.d/*
  1. Go to the source, which is /etc/network/interfaces.d/ for me.
    Type cat /etc/network/interfaces.d

  2. Type ls and edit the file there. For me, its 50-cloud-init.cfg.
    So, type nano 50-cloud-init.cfg

  3. This is your previous server’s network configuration, just change the values of IP Address and Gateway. You can find these values in your Digital ocean >Droplet>Networking section.

Also, add ens3 device or whatever we found in step 3.

Make the file similar to this,

# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
auto lo
iface lo inet loopback
    dns-nameservers 67.207.67.2 67.207.67.3

auto lo ens3
iface lo inet loopback

iface ens3 inet static
    address 68.183.xx.xxx/20
    gateway 68.183.xx.x

# control-alias eth0
iface ens3 inet static
    address 10.47.0.5/16
  1. Done, It should work now. Try ping google.com & should work properly.

Thank me later, Regards,
Sreekant Shenoy

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