Destination Host Unreachable
Greetings!
So this is what happens:
Linode A - Linode that is problematic.
Linode B - Production service - Working fine
Linode C - Microservice - Working fine
I am trying to resolve a strange issue that is happening right now.
I have 1 Linode that is unable to accept or send out ping requests from and to other linodes.
1.) When I try to ping Linode A from Linode B the response is "Destination Host Unreachable".
2.) When I try to ping Linode B from Linode A the response is "Destination Host Unreachable"
3.) When I try to ping Linode B from Linode C and vice versa, it works.
4.) When i try to ping linode A from my local and my coworkers local we are able to get a response.
Please help, as this problem is really starting to iritate me.
We have Runcloud running for both Linode A and B and they have the same configuration.
3 Replies
Make sure the hosts that are giving Destination unreachable are not being blocked by your firewall.
-- sw
Hi steve! i dont have any firewall enabled
Arrgh! Are you a glutton for punishment!
Seriously, there may be a firewall enabled that you don't know about… the magic of systemd(8)…
Can you provide the output of:
iptables -Vl #dump IPv4 firewall to stdout
ip6tables -Vl #dump IPv6 firewlall to stdout
for each Destination unreachable node?
Thanks…
-- sw